This is the start of the stable review cycle for the 5.16.11 release.
There are 227 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
Anything received after that time might be too late.
The whole patch series can be found in one patch at:
https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <[email protected]>
Linux 5.16.11-rc1
Jing Leng <[email protected]>
kconfig: fix failing to generate auto.conf
Marc St-Amand <[email protected]>
net: macb: Align the dma and coherent dma masks
Slark Xiao <[email protected]>
net: usb: qmi_wwan: Add support for Dell DW5829e
Dmytro Laktyushkin <[email protected]>
drm/amd/display: fix yellow carp wm clamping
Roman Li <[email protected]>
drm/amd/display: Cap pflip irqs per max otg number
Aaron Liu <[email protected]>
drm/amdgpu: add utcl2_harvest to gc 10.3.1
Mario Limonciello <[email protected]>
display/amd: decrease message verbosity about watermarks table failure
JaeSang Yoo <[email protected]>
tracing: Fix tp_printk option related with tp_printk_stop_on_boot
Sascha Hauer <[email protected]>
drm/rockchip: dw_hdmi: Do not leave clock enabled in error case
Dan Aloni <[email protected]>
xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create
Jae Hyun Yoo <[email protected]>
soc: aspeed: lpc-ctrl: Block error printing on probe defer cases
Zoltán Böszörményi <[email protected]>
ata: libata-core: Disable TRIM on M88V29
Brenda Streiff <[email protected]>
kconfig: let 'shell' return enough output for deep path names
Mario Limonciello <[email protected]>
ACPI: PM: Revert "Only mark EC GPE for wakeup on Intel systems"
Shakeel Butt <[email protected]>
mm: io_uring: allow oom-killer from io_uring_setup
Axel Rasmussen <[email protected]>
selftests: fixup build warnings in pidfd / clone3 tests
Axel Rasmussen <[email protected]>
pidfd: fix test failure due to stack overflow on some arches
Christian Hewitt <[email protected]>
arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610
Christian Hewitt <[email protected]>
arm64: dts: meson-g12: add ATF BL32 reserved-memory region
Christian Hewitt <[email protected]>
arm64: dts: meson-gx: add ATF BL32 reserved-memory region
Namjae Jeon <[email protected]>
ksmbd: don't align last entry offset in smb2 query directory
Namjae Jeon <[email protected]>
ksmbd: fix same UniqueId for dot and dotdot entries
Florian Westphal <[email protected]>
netfilter: conntrack: don't refresh sctp entries in closed state
Nick Desaulniers <[email protected]>
x86/bug: Merge annotate_reachable() into _BUG_FLAGS() asm
Guo Ren <[email protected]>
irqchip/sifive-plic: Add missing thead,c900-plic match string
Wan Jiabing <[email protected]>
phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy
Padmanabha Srinivasaiah <[email protected]>
staging: vc04_services: Fix RCU dereference check
Al Cooper <[email protected]>
phy: usb: Leave some clocks running during suspend
Ye Guojin <[email protected]>
ARM: OMAP2+: adjust the location of put_device() call in omapdss_init_of
Wan Jiabing <[email protected]>
ARM: OMAP2+: hwmod: Add of_node_put() before break
Jim Mattson <[email protected]>
KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW
Jim Mattson <[email protected]>
KVM: x86/pmu: Don't truncate the PerfEvtSeln MSR when creating a perf event
Like Xu <[email protected]>
KVM: x86/pmu: Refactoring find_arch_event() to pmc_perf_hw_id()
Miaoqian Lin <[email protected]>
Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
Miaoqian Lin <[email protected]>
mtd: rawnand: ingenic: Fix missing put_device in ingenic_ecc_get
Dongliang Mu <[email protected]>
HID: elo: fix memory leak in elo_probe
Cheng Jui Wang <[email protected]>
lockdep: Correct lock_classes index mapping
Rafał Miłecki <[email protected]>
i2c: brcmstb: fix support for DSL and CM variants
Jesse Brandeburg <[email protected]>
ice: enable parsing IPSEC SPI headers for RSS
Charles Keepax <[email protected]>
ASoC: wm_adsp: Correct control read size when parsing compressed buffer
Mike Christie <[email protected]>
scsi: qedi: Fix ABBA deadlock in qedi_process_tmf_resp() and qedi_process_cmd_cleanup_resp()
Waiman Long <[email protected]>
copy_process(): Move fd_install() out of sighand->siglock critical section
Christophe JAILLET <[email protected]>
dmaengine: ptdma: Fix the error handling path in pt_core_init()
Vladimir Zapolskiy <[email protected]>
i2c: qcom-cci: don't put a device tree node before i2c_add_adapter()
Vladimir Zapolskiy <[email protected]>
i2c: qcom-cci: don't delete an unregistered adapter
Christian Brauner <[email protected]>
tests: fix idmapped mount_setattr test
Jiasheng Jiang <[email protected]>
dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size
Miaoqian Lin <[email protected]>
dmaengine: stm32-dmamux: Fix PM disable depth imbalance in stm32_dmamux_probe
Jiasheng Jiang <[email protected]>
dmaengine: sh: rcar-dmac: Check for error num after setting mask
Eric Dumazet <[email protected]>
net: sched: limit TC_ACT_REPEAT loops
Eric W. Biederman <[email protected]>
ucounts: Move RLIMIT_NPROC handling after set_user
Eric W. Biederman <[email protected]>
rlimit: Fix RLIMIT_NPROC enforcement failure caused by capability calls in set_user
Eric W. Biederman <[email protected]>
ucounts: Enforce RLIMIT_NPROC not RLIMIT_NPROC+1
Eric W. Biederman <[email protected]>
ucounts: Handle wrapping in is_ucounts_overlimit
Eric W. Biederman <[email protected]>
ucounts: Base set_cred_ucounts changes on the real user
Andy Lutomirski <[email protected]>
x86/ptrace: Fix xfpregs_set()'s incorrect xmm clearing
Eliav Farber <[email protected]>
EDAC: Fix calculation of returned address and next offset in edac_align_ptr()
James Smart <[email protected]>
scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop
david regan <[email protected]>
mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
Dan Carpenter <[email protected]>
mtd: phram: Prevent divide by zero bug in phram_setup()
Ansuel Smith <[email protected]>
mtd: parsers: qcom: Fix missing free for pparts in cleanup
Ansuel Smith <[email protected]>
mtd: parsers: qcom: Fix kernel panic on skipped partition
Bryan O'Donoghue <[email protected]>
mtd: rawnand: qcom: Fix clock sequencing in qcom_nandc_probe()
Christoph Hellwig <[email protected]>
block: fix surprise removal for drivers calling blk_set_queue_dying
Linus Torvalds <[email protected]>
tty: n_tty: do not look ahead for EOL character past the end of the buffer
Trond Myklebust <[email protected]>
NFS: Do not report writeback errors in nfs_getattr()
Trond Myklebust <[email protected]>
NFS: LOOKUP_DIRECTORY is also ok with symlinks
Trond Myklebust <[email protected]>
NFS: Remove an incorrect revalidation in nfs4_update_changeattr_locked()
Laibin Qiu <[email protected]>
block/wbt: fix negative inflight counter when remove scsi device
Stephen Boyd <[email protected]>
ASoC: qcom: Actually clear DMA interrupt register for HDMI
Martin Povišer <[email protected]>
ASoC: tas2770: Insert post reset delay
Bart Van Assche <[email protected]>
scsi: ufs: Fix a deadlock in the error handler
Bart Van Assche <[email protected]>
scsi: ufs: Remove dead code
Jon Maloy <[email protected]>
tipc: fix wrong notification node addresses
Steve French <[email protected]>
smb3: fix snapshot mount option
Christian Eggers <[email protected]>
mtd: rawnand: gpmi: don't leak PM reference in error path
Anders Roxell <[email protected]>
powerpc/lib/sstep: fix 'ptesync' build error
Christophe Leroy <[email protected]>
powerpc/603: Fix boot failure with DEBUG_PAGEALLOC and KFENCE
Woody Suwalski <[email protected]>
ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40
Steve French <[email protected]>
cifs: fix confusing unneeded warning message on smb2.1 and earlier
Amir Goldstein <[email protected]>
cifs: fix set of group SID via NTSD xattrs
Mark Brown <[email protected]>
ASoC: ops: Fix stereo change notifications in snd_soc_put_xr_sx()
Mark Brown <[email protected]>
ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw_sx()
Mark Brown <[email protected]>
ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw_range()
Mark Brown <[email protected]>
ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw()
Takashi Iwai <[email protected]>
ALSA: hda: Fix missing codec probe on Shenker Dock 15
Takashi Iwai <[email protected]>
ALSA: hda: Fix regression on forced probe mask option
Takashi Iwai <[email protected]>
ALSA: hda/realtek: Fix deadlock by COEF mutex
Yu Huang <[email protected]>
ALSA: hda/realtek: Add quirk for Legion Y9000X 2019
Takashi Iwai <[email protected]>
ALSA: memalloc: invalidate SG pages before sync
Takashi Iwai <[email protected]>
ALSA: memalloc: Fix dma_need_sync() checks
Matteo Martelli <[email protected]>
ALSA: usb-audio: revert to IMPLICIT_FB_FIXED_DEV for M-Audio FastTrack Ultra
Takashi Iwai <[email protected]>
ALSA: usb-audio: Don't abort resume upon errors
Joakim Tjernlund <[email protected]>
arm64: Correct wrong label in macro __init_el2_gicv3
Muhammad Usama Anjum <[email protected]>
selftests/exec: Add non-regular to TEST_GEN_PROGS
Arnaldo Carvalho de Melo <[email protected]>
perf bpf: Defer freeing string after possible strlen() on it
Oleksandr Mazur <[email protected]>
net: bridge: multicast: notify switchdev driver whenever MC processing gets disabled
Vladimir Oltean <[email protected]>
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
Radu Bulie <[email protected]>
dpaa2-eth: Initialize mutex used in one step timestamping path
Tom Rix <[email protected]>
dpaa2-switch: fix default return of dpaa2_switch_flower_parse_mirror_key
Jon Maloy <[email protected]>
tipc: fix wrong publisher node address in link publications
Gatis Peisenieks <[email protected]>
atl1c: fix tx timeout after link flap on Mikrotik 10/25G NIC
DENG Qingfang <[email protected]>
net: phy: mediatek: remove PHY mode check on MT7531
Wen Gu <[email protected]>
net/smc: Avoid overwriting the copies of clcsock callback functions
Kees Cook <[email protected]>
libsubcmd: Fix use-after-free for realloc(..., 0)
Danie du Toit <[email protected]>
nfp: flower: netdev offload check for ip6gretap
Eric Dumazet <[email protected]>
bonding: fix data-races around agg_select_timer
Eric Dumazet <[email protected]>
crypto: af_alg - get rid of alg_memory_allocated
Eric Dumazet <[email protected]>
net_sched: add __rcu annotation to netdev->qdisc
Eric Dumazet <[email protected]>
drop_monitor: fix data-race in dropmon_net_event / trace_napi_poll_hit
Tom Rix <[email protected]>
mctp: fix use after free
Zhang Changzhong <[email protected]>
bonding: force carrier update when releasing slave
Xin Long <[email protected]>
ping: fix the dif and sdif check in ping_lookup
Miquel Raynal <[email protected]>
net: ieee802154: ca8210: Fix lifs/sifs periods
Mans Rullgard <[email protected]>
net: dsa: lan9303: add VLAN IDs to master device
Mans Rullgard <[email protected]>
net: dsa: lan9303: handle hwaccel VLAN tags
Alexey Khoroshilov <[email protected]>
net: dsa: lantiq_gswip: fix use after free in gswip_remove()
Vladimir Oltean <[email protected]>
net: dsa: mv88e6xxx: flush switchdev FDB workqueue before removing VLAN
Mans Rullgard <[email protected]>
net: dsa: lan9303: fix reset on probe
Johannes Berg <[email protected]>
cfg80211: fix race in netlink owner interface destruction
Phil Elwell <[email protected]>
brcmfmac: firmware: Fix crash in brcm_alt_fw_path
Jiasheng Jiang <[email protected]>
mac80211: mlme: check for null after calling kmemdup
Jonas Gorski <[email protected]>
Revert "net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname"
Willem de Bruijn <[email protected]>
ipv6: per-netns exclusive flowlabel checks
Ignat Korchagin <[email protected]>
ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
Eric Dumazet <[email protected]>
ipv6: fix data-race in fib6_info_hw_flags_set / fib6_purge_rt
Eric Dumazet <[email protected]>
ipv4: fix data races in fib_alias_hw_flags_set
Hangbin Liu <[email protected]>
selftests: netfilter: disable rp_filter on router
Pablo Neira Ayuso <[email protected]>
netfilter: nft_synproxy: unregister hooks on init error path
Hangbin Liu <[email protected]>
selftests: netfilter: fix exit value for nft_concat_range
Eric Dumazet <[email protected]>
netfilter: xt_socket: fix a typo in socket_mt_destroy()
Luca Coelho <[email protected]>
iwlwifi: mvm: don't send SAR GEO command for 3160 devices
Miri Korenblit <[email protected]>
iwlwifi: fix iwl_legacy_rate_to_fw_idx
Miri Korenblit <[email protected]>
iwlwifi: mvm: fix condition which checks the version of rate_n_flags
Johannes Berg <[email protected]>
iwlwifi: pcie: gen2: fix locking when "HW not ready"
Johannes Berg <[email protected]>
iwlwifi: pcie: fix locking when "HW not ready"
Matthew Auld <[email protected]>
drm/i915/ttm: tweak priority hint selection
Siva Mullati <[email protected]>
drm/i915/gvt: Make DRM_I915_GVT depend on X86
Robin Murphy <[email protected]>
drm/cma-helper: Set VM_DONTEXPAND for mmap
Jens Wiklander <[email protected]>
optee: use driver internal tee_context for some rpc
Jens Wiklander <[email protected]>
tee: export teedev_open() and teedev_close_context()
Seth Forshee <[email protected]>
vsock: remove vsock from connected table when connect is interrupted by a signal
Ville Syrjälä <[email protected]>
drm/i915: Fix mbus join config lookup
Ville Syrjälä <[email protected]>
drm/i915: Fix dbuf slice config lookup
Jani Nikula <[email protected]>
drm/i915/opregion: check port number bounds for SWSCI display power state
Rajib Mahapatra <[email protected]>
drm/amdgpu: skipping SDMA hw_init and hw_fini for S0ix.
Yifan Zhang <[email protected]>
drm/amd/pm: correct the sequence of sending gpu reset msg
Ville Syrjälä <[email protected]>
drm/atomic: Don't pollute crtc_state->mode_blob with error pointers
Nicholas Bishop <[email protected]>
drm/radeon: Fix backlight control on iMac 12,1
AngeloGioacchino Del Regno <[email protected]>
drm/mediatek: mtk_dsi: Avoid EPROBE_DEFER loop with external bridge
Johannes Berg <[email protected]>
iwlwifi: fix use-after-free
Luca Coelho <[email protected]>
iwlwifi: remove deprecated broadcast filtering feature
Maxim Levitsky <[email protected]>
KVM: x86: nSVM: mark vmcb01 as dirty when restoring SMM saved state
Maxim Levitsky <[email protected]>
KVM: x86: nSVM: fix potential NULL derefernce on nested migration
Maxim Levitsky <[email protected]>
KVM: x86: SVM: don't passthrough SMAP/SMEP/PKE bits in !NPT && !gCR0.PG case
Maxim Levitsky <[email protected]>
KVM: x86: nSVM/nVMX: set nested_run_pending on VM entry which is a result of RSM
David Woodhouse <[email protected]>
KVM: x86/xen: Fix runstate updates to be atomic when preempting vCPU
Jason A. Donenfeld <[email protected]>
random: wake up /dev/random writers after zap
Kees Cook <[email protected]>
gcc-plugins/stackleak: Use noinstr in favor of notrace
Igor Pylypiv <[email protected]>
Revert "module, async: async_synchronize_full() on module init iff async is used"
Jan Beulich <[email protected]>
x86/Xen: streamline (and fix) PV CPU enumeration
Christian König <[email protected]>
drm/amdgpu: fix logic inversion in check
Mario Limonciello <[email protected]>
drm/amd: Only run s3 or s0ix if system is configured properly
Mario Limonciello <[email protected]>
drm/amd: add support to check whether the system is set to s3
Steen Hegelund <[email protected]>
net: sparx5: do not refer to skb after passing it on
Sagi Grimberg <[email protected]>
nvme-rdma: fix possible use-after-free in transport error_recovery work
Sagi Grimberg <[email protected]>
nvme-tcp: fix possible use-after-free in transport error_recovery work
Sagi Grimberg <[email protected]>
nvme: fix a possible use-after-free in controller reset during load
Christian Brauner <[email protected]>
mailmap: update Christian Brauner's email address
Mario Limonciello <[email protected]>
drm/amd: Warn users about potential s0ix problems
John Garry <[email protected]>
scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
John Garry <[email protected]>
scsi: pm8001: Fix use-after-free for aborted TMF sas_task
Ming Lei <[email protected]>
scsi: core: Reallocate device's budget map on queue depth change
Vincenzo Frascino <[email protected]>
kselftest: Fix vdso_test_abi return status
Ajish Koshy <[email protected]>
scsi: pm80xx: Fix double completion for SATA devices
Darrick J. Wong <[email protected]>
quota: make dquot_quota_sync return errors from ->sync_fs
Darrick J. Wong <[email protected]>
vfs: make sync_filesystem return errors from ->sync_fs
Darrick J. Wong <[email protected]>
vfs: make freeze_super abort when sync_filesystem returns error
Julian Braha <[email protected]>
pinctrl: bcm63xx: fix unmet dependency on REGMAP for GPIO_REGMAP
Shyam Prasad N <[email protected]>
cifs: unlock chan_lock before calling cifs_put_tcp_session
Duoming Zhou <[email protected]>
ax25: improve the incomplete fix to avoid UAF and NPD bugs
Cristian Marussi <[email protected]>
selftests: skip mincore.check_file_mmap when fs lacks needed support
Cristian Marussi <[email protected]>
selftests: openat2: Skip testcases that fail with EOPNOTSUPP
Cristian Marussi <[email protected]>
selftests: openat2: Add missing dependency in Makefile
Cristian Marussi <[email protected]>
selftests: openat2: Print also errno in failure messages
Yang Xu <[email protected]>
selftests/zram: Adapt the situation that /dev/zram0 is being used
Yang Xu <[email protected]>
selftests/zram01.sh: Fix compression ratio calculation
Yang Xu <[email protected]>
selftests/zram: Skip max_comp_streams interface on newer kernel
Miquel Raynal <[email protected]>
net: ieee802154: at86rf230: Stop leaking skb's
Florian Westphal <[email protected]>
selftests: netfilter: reduce zone stress test running time
Li Zhijian <[email protected]>
kselftest: signal all child processes
Nícolas F. R. A. Prado <[email protected]>
selftests: rtc: Increase test timeout so that all tests run
Michał Winiarski <[email protected]>
kunit: tool: Import missing importlib.abc
Mario Limonciello <[email protected]>
platform/x86: amd-pmc: Correct usage of SMU version
Srinivas Pandruvada <[email protected]>
platform/x86: ISST: Fix possible circular locking dependency detected
Yuka Kawajiri <[email protected]>
platform/x86: touchscreen_dmi: Add info for the RWC NANOTE P8 AY07J 2-in-1
Julian Braha <[email protected]>
ASoC: mediatek: fix unmet dependency on GPIOLIB for SND_SOC_DMIC
Qu Wenruo <[email protected]>
btrfs: defrag: don't try to defrag extents which are under writeback
Dāvis Mosāns <[email protected]>
btrfs: send: in case of IO error log it
Qu Wenruo <[email protected]>
btrfs: don't hold CPU for too long when defragging a file
Alex Henrie <[email protected]>
HID: apple: Set the tilde quirk flag on the Wellspring 5 and later
Andy Shevchenko <[email protected]>
parisc: Add ioread64_lo_hi() and iowrite64_lo_hi()
Long Li <[email protected]>
PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology
Basavaraj Natikar <[email protected]>
HID: amd_sfh: Correct the structure field name
Muhammad Usama Anjum <[email protected]>
selftests: kvm: Remove absent target file
Basavaraj Natikar <[email protected]>
HID: amd_sfh: Increase sensor command timeout
Daniel Thompson <[email protected]>
HID: i2c-hid: goodix: Fix a lockdep splat
Basavaraj Natikar <[email protected]>
HID: amd_sfh: Add illuminance mask to limit ALS max value
Linus Torvalds <[email protected]>
mm: don't try to NUMA-migrate COW pages that have other uses
Christian Löhle <[email protected]>
mmc: block: fix read single on recovery logic
John David Anglin <[email protected]>
parisc: Fix sglist access in ccio-dma.c
John David Anglin <[email protected]>
parisc: Fix data TLB miss in sba_unmap_sg
John David Anglin <[email protected]>
parisc: Drop __init from map_pages declaration
Randy Dunlap <[email protected]>
serial: parisc: GSC: fix build when IOSAPIC is not set
Helge Deller <[email protected]>
parisc: Show error if wrong 32/64-bit compiler is being used
Sean Christopherson <[email protected]>
Revert "svm: Add warning message for AVIC IPI invalid target"
Sergio Costas <[email protected]>
HID:Add support for UGTABLET WP5540
Hao Luo <[email protected]>
bpf/selftests: Test PTR_TO_RDONLY_MEM
Hao Luo <[email protected]>
bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.
Hao Luo <[email protected]>
bpf: Make per_cpu_ptr return rdonly PTR_TO_MEM.
Hao Luo <[email protected]>
bpf: Convert PTR_TO_MEM_OR_NULL to composable types.
Hao Luo <[email protected]>
bpf: Introduce MEM_RDONLY flag
Hao Luo <[email protected]>
bpf: Replace PTR_TO_XXX_OR_NULL with PTR_TO_XXX | PTR_MAYBE_NULL
Hao Luo <[email protected]>
bpf: Replace RET_XXX_OR_NULL with RET_XXX | PTR_MAYBE_NULL
Hao Luo <[email protected]>
bpf: Replace ARG_XXX_OR_NULL with ARG_XXX | PTR_MAYBE_NULL
Hao Luo <[email protected]>
bpf: Introduce composable reg, ret and arg types.
Ben Skeggs <[email protected]>
drm/nouveau/pmu/gm200-: use alternate falcon reset sequence
-------------
Diffstat:
.mailmap | 3 +
Makefile | 4 +-
arch/arm/mach-omap2/display.c | 2 +-
arch/arm/mach-omap2/omap_hwmod.c | 4 +-
arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 +
arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts | 8 -
arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 +
arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts | 8 -
arch/arm64/include/asm/el2_setup.h | 2 +-
arch/parisc/include/asm/bitops.h | 8 +
arch/parisc/lib/iomap.c | 18 +
arch/parisc/mm/init.c | 9 +-
arch/powerpc/kernel/head_book3s_32.S | 4 +-
arch/powerpc/lib/sstep.c | 2 +
arch/x86/include/asm/bug.h | 20 +-
arch/x86/kernel/fpu/regset.c | 9 +-
arch/x86/kernel/ptrace.c | 4 +-
arch/x86/kvm/pmu.c | 15 +-
arch/x86/kvm/pmu.h | 3 +-
arch/x86/kvm/svm/avic.c | 2 -
arch/x86/kvm/svm/nested.c | 26 +-
arch/x86/kvm/svm/pmu.c | 8 +-
arch/x86/kvm/svm/svm.c | 19 +-
arch/x86/kvm/vmx/pmu_intel.c | 9 +-
arch/x86/kvm/vmx/vmx.c | 1 +
arch/x86/kvm/xen.c | 97 ++--
arch/x86/xen/enlighten_pv.c | 4 -
arch/x86/xen/smp_pv.c | 26 +-
block/bfq-iosched.c | 2 +
block/blk-core.c | 10 +-
block/elevator.c | 2 -
block/genhd.c | 14 +
crypto/af_alg.c | 3 -
drivers/acpi/processor_idle.c | 5 +
drivers/acpi/x86/s2idle.c | 12 +-
drivers/ata/libata-core.c | 1 +
drivers/block/mtip32xx/mtip32xx.c | 2 +-
drivers/block/rbd.c | 2 +-
drivers/block/xen-blkfront.c | 2 +-
drivers/char/random.c | 5 +-
drivers/dma/ptdma/ptdma-dev.c | 17 +-
drivers/dma/sh/rcar-dmac.c | 9 +-
drivers/dma/stm32-dmamux.c | 4 +-
drivers/edac/edac_mc.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 10 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 37 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 7 +-
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 8 +
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
.../drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c | 6 +-
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
.../gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c | 61 +--
.../gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 9 +-
drivers/gpu/drm/drm_atomic_uapi.c | 14 +-
drivers/gpu/drm/drm_gem_cma_helper.c | 1 +
drivers/gpu/drm/i915/Kconfig | 1 +
drivers/gpu/drm/i915/display/intel_opregion.c | 15 +
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 6 +-
drivers/gpu/drm/i915/intel_pm.c | 4 +-
drivers/gpu/drm/mediatek/mtk_dsi.c | 167 +++----
drivers/gpu/drm/nouveau/nvkm/falcon/base.c | 8 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c | 31 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c | 2 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c | 2 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c | 2 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h | 2 +
drivers/gpu/drm/radeon/atombios_encoders.c | 3 +-
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 14 +-
drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 +-
drivers/hid/amd-sfh-hid/amd_sfh_pcie.h | 2 +-
.../amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c | 4 +-
drivers/hid/hid-apple.c | 16 +-
drivers/hid/hid-elo.c | 1 +
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-quirks.c | 1 +
drivers/hid/i2c-hid/i2c-hid-of-goodix.c | 28 +-
drivers/hv/vmbus_drv.c | 5 +-
drivers/i2c/busses/i2c-brcmstb.c | 2 +-
drivers/i2c/busses/i2c-qcom-cci.c | 16 +-
drivers/irqchip/irq-sifive-plic.c | 1 +
drivers/md/dm.c | 2 +-
drivers/mmc/core/block.c | 28 +-
drivers/mtd/devices/phram.c | 12 +-
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 2 +-
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 3 +-
drivers/mtd/nand/raw/ingenic/ingenic_ecc.c | 7 +-
drivers/mtd/nand/raw/qcom_nandc.c | 14 +-
drivers/mtd/parsers/qcomsmempart.c | 33 +-
drivers/net/bonding/bond_3ad.c | 30 +-
drivers/net/bonding/bond_main.c | 5 +-
drivers/net/dsa/Kconfig | 1 +
drivers/net/dsa/lan9303-core.c | 13 +-
drivers/net/dsa/lantiq_gswip.c | 2 +-
drivers/net/dsa/mv88e6xxx/chip.c | 7 +
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 2 +-
drivers/net/ethernet/broadcom/bgmac-platform.c | 23 +-
drivers/net/ethernet/cadence/macb_main.c | 2 +-
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +-
.../ethernet/freescale/dpaa2/dpaa2-switch-flower.c | 4 +-
drivers/net/ethernet/intel/ice/ice_lib.c | 6 +
.../net/ethernet/microchip/sparx5/sparx5_packet.c | 2 +-
drivers/net/ethernet/mscc/ocelot.c | 6 +-
drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 2 +
drivers/net/ieee802154/at86rf230.c | 13 +-
drivers/net/ieee802154/ca8210.c | 4 +-
drivers/net/netdevsim/fib.c | 4 +-
drivers/net/phy/mediatek-ge.c | 3 -
drivers/net/usb/qmi_wwan.c | 2 +
.../broadcom/brcm80211/brcmfmac/firmware.c | 6 +-
drivers/net/wireless/intel/iwlwifi/Kconfig | 13 -
drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 11 +-
.../net/wireless/intel/iwlwifi/fw/api/commands.h | 5 -
drivers/net/wireless/intel/iwlwifi/fw/api/filter.h | 88 ----
drivers/net/wireless/intel/iwlwifi/fw/api/rs.h | 1 -
drivers/net/wireless/intel/iwlwifi/fw/file.h | 2 -
drivers/net/wireless/intel/iwlwifi/fw/rs.c | 33 +-
drivers/net/wireless/intel/iwlwifi/iwl-csr.h | 3 +-
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 2 +
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 203 ---------
drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 2 +-
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 240 ----------
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 13 -
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 1 -
drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 2 +-
.../net/wireless/intel/iwlwifi/pcie/trans-gen2.c | 3 +-
drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 3 +-
drivers/nvme/host/core.c | 11 +-
drivers/nvme/host/multipath.c | 2 +-
drivers/nvme/host/rdma.c | 1 +
drivers/nvme/host/tcp.c | 1 +
drivers/parisc/ccio-dma.c | 3 +-
drivers/parisc/sba_iommu.c | 3 +-
drivers/pci/controller/pci-hyperv.c | 13 +-
drivers/phy/broadcom/phy-brcm-usb.c | 38 ++
drivers/phy/mediatek/phy-mtk-tphy.c | 2 +-
drivers/pinctrl/bcm/Kconfig | 1 +
drivers/platform/x86/amd-pmc.c | 13 +-
.../x86/intel/speed_select_if/isst_if_common.c | 97 ++--
drivers/platform/x86/touchscreen_dmi.c | 24 +
drivers/scsi/lpfc/lpfc.h | 1 +
drivers/scsi/lpfc/lpfc_attr.c | 3 +
drivers/scsi/lpfc/lpfc_els.c | 20 +-
drivers/scsi/lpfc/lpfc_nportdisc.c | 5 +-
drivers/scsi/pm8001/pm8001_hwi.c | 18 -
drivers/scsi/pm8001/pm8001_sas.c | 5 +
drivers/scsi/pm8001/pm80xx_hwi.c | 30 +-
drivers/scsi/qedi/qedi_fw.c | 6 +-
drivers/scsi/scsi_scan.c | 55 ++-
drivers/scsi/ufs/ufshcd.c | 58 +--
drivers/scsi/ufs/ufshcd.h | 2 +
drivers/soc/aspeed/aspeed-lpc-ctrl.c | 7 +-
.../vc04_services/interface/vchiq_arm/vchiq_arm.c | 20 +-
drivers/tee/optee/core.c | 1 +
drivers/tee/optee/ffa_abi.c | 70 +--
drivers/tee/optee/optee_private.h | 4 +-
drivers/tee/optee/smc_abi.c | 13 +-
drivers/tee/tee_core.c | 6 +-
drivers/tty/n_tty.c | 6 +-
drivers/tty/serial/8250/8250_gsc.c | 2 +-
fs/btrfs/ioctl.c | 5 +
fs/btrfs/send.c | 4 +
fs/cifs/connect.c | 8 +-
fs/cifs/fs_context.c | 4 +-
fs/cifs/sess.c | 11 +-
fs/cifs/xattr.c | 2 +
fs/io_uring.c | 5 +-
fs/ksmbd/smb2pdu.c | 7 +-
fs/ksmbd/smb_common.c | 5 +-
fs/ksmbd/vfs.h | 1 +
fs/nfs/dir.c | 4 +-
fs/nfs/inode.c | 9 +-
fs/nfs/nfs4proc.c | 3 +-
fs/quota/dquot.c | 11 +-
fs/super.c | 19 +-
fs/sync.c | 18 +-
include/linux/blkdev.h | 3 +-
include/linux/bpf.h | 101 ++++-
include/linux/bpf_verifier.h | 17 +
include/linux/compiler.h | 21 +-
include/linux/netdevice.h | 2 +-
include/linux/sched.h | 1 -
include/linux/tee_drv.h | 14 +
include/net/addrconf.h | 2 -
include/net/bond_3ad.h | 2 +-
include/net/dsa.h | 1 +
include/net/ip6_fib.h | 10 +-
include/net/ipv6.h | 5 +-
include/net/netns/ipv6.h | 3 +-
kernel/async.c | 3 -
kernel/bpf/btf.c | 12 +-
kernel/bpf/cgroup.c | 2 +-
kernel/bpf/helpers.c | 12 +-
kernel/bpf/map_iter.c | 4 +-
kernel/bpf/ringbuf.c | 2 +-
kernel/bpf/syscall.c | 2 +-
kernel/bpf/verifier.c | 488 ++++++++++-----------
kernel/cred.c | 9 +-
kernel/fork.c | 17 +-
kernel/locking/lockdep.c | 4 +-
kernel/module.c | 25 +-
kernel/stackleak.c | 5 +-
kernel/sys.c | 20 +-
kernel/trace/bpf_trace.c | 26 +-
kernel/trace/trace.c | 4 +
kernel/ucount.c | 3 +-
mm/mprotect.c | 2 +-
net/ax25/af_ax25.c | 9 +-
net/bridge/br_multicast.c | 4 +
net/core/bpf_sk_storage.c | 2 +-
net/core/drop_monitor.c | 11 +-
net/core/filter.c | 64 +--
net/core/rtnetlink.c | 6 +-
net/core/sock_map.c | 2 +-
net/dsa/dsa.c | 1 +
net/dsa/dsa_priv.h | 1 -
net/dsa/tag_lan9303.c | 21 +-
net/ipv4/fib_lookup.h | 7 +-
net/ipv4/fib_semantics.c | 6 +-
net/ipv4/fib_trie.c | 22 +-
net/ipv4/ping.c | 11 +-
net/ipv4/route.c | 4 +-
net/ipv6/addrconf.c | 4 +-
net/ipv6/ip6_flowlabel.c | 4 +-
net/ipv6/mcast.c | 2 +-
net/ipv6/route.c | 19 +-
net/mac80211/mlme.c | 29 +-
net/mctp/route.c | 11 +-
net/netfilter/nf_conntrack_proto_sctp.c | 9 +
net/netfilter/nft_synproxy.c | 4 +-
net/netfilter/xt_socket.c | 2 +-
net/sched/act_api.c | 13 +-
net/sched/cls_api.c | 6 +-
net/sched/sch_api.c | 22 +-
net/sched/sch_generic.c | 29 +-
net/smc/af_smc.c | 10 +-
net/sunrpc/xprtrdma/verbs.c | 3 +
net/tipc/node.c | 13 +-
net/vmw_vsock/af_vsock.c | 1 +
net/wireless/core.c | 17 +-
scripts/kconfig/confdata.c | 13 +-
scripts/kconfig/preprocess.c | 2 +-
sound/core/memalloc.c | 15 +-
sound/pci/hda/hda_intel.c | 5 +-
sound/pci/hda/patch_realtek.c | 40 +-
sound/soc/codecs/tas2770.c | 7 +-
sound/soc/codecs/wm_adsp.c | 3 +-
sound/soc/mediatek/Kconfig | 2 +-
sound/soc/qcom/lpass-platform.c | 8 +-
sound/soc/soc-ops.c | 41 +-
sound/usb/implicit.c | 4 +-
sound/usb/mixer.c | 9 +-
tools/lib/subcmd/subcmd-util.h | 11 +-
tools/perf/util/bpf-loader.c | 3 +-
tools/testing/kunit/kunit_kernel.py | 1 +
tools/testing/selftests/bpf/prog_tests/ksyms_btf.c | 14 +
.../bpf/progs/test_ksyms_btf_write_check.c | 29 ++
tools/testing/selftests/clone3/clone3.c | 2 -
tools/testing/selftests/exec/Makefile | 4 +-
tools/testing/selftests/kselftest_harness.h | 4 +-
tools/testing/selftests/kvm/Makefile | 1 -
tools/testing/selftests/mincore/mincore_selftest.c | 20 +-
.../selftests/mount_setattr/mount_setattr_test.c | 4 +-
.../selftests/netfilter/nft_concat_range.sh | 2 +-
tools/testing/selftests/netfilter/nft_fib.sh | 1 +
.../testing/selftests/netfilter/nft_zones_many.sh | 12 +-
tools/testing/selftests/openat2/Makefile | 2 +-
tools/testing/selftests/openat2/helpers.h | 12 +-
tools/testing/selftests/openat2/openat2_test.c | 12 +-
tools/testing/selftests/pidfd/pidfd.h | 13 +-
tools/testing/selftests/pidfd/pidfd_fdinfo_test.c | 22 +-
tools/testing/selftests/pidfd/pidfd_test.c | 6 +-
tools/testing/selftests/pidfd/pidfd_wait.c | 5 +-
tools/testing/selftests/rtc/settings | 2 +-
tools/testing/selftests/vDSO/vdso_test_abi.c | 135 +++---
tools/testing/selftests/zram/zram.sh | 15 +-
tools/testing/selftests/zram/zram01.sh | 33 +-
tools/testing/selftests/zram/zram02.sh | 1 -
tools/testing/selftests/zram/zram_lib.sh | 134 ++++--
281 files changed, 2217 insertions(+), 2070 deletions(-)
From: Mario Limonciello <[email protected]>
[ Upstream commit 03ad3093c7c069d6ab4403730009ebafeea9ee37 ]
A number of BIOS versions have a problem with the watermarks table not
being configured properly. This manifests as a very scary looking warning
during resume from s0i3. This should be harmless in most cases and is well
understood, so decrease the assertion to a clearer warning about the problem.
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
index 162ae71861247..21d2cbc3cbb20 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
@@ -120,7 +120,11 @@ int dcn31_smu_send_msg_with_param(
result = dcn31_smu_wait_for_response(clk_mgr, 10, 200000);
if (result == VBIOSSMC_Result_Failed) {
- ASSERT(0);
+ if (msg_id == VBIOSSMC_MSG_TransferTableDram2Smu &&
+ param == TABLE_WATERMARKS)
+ DC_LOG_WARNING("Watermarks table not configured properly by SMU");
+ else
+ ASSERT(0);
REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Result_OK);
return -1;
}
--
2.34.1
From: Jens Wiklander <[email protected]>
commit aceeafefff736057e8f93f19bbfbef26abd94604 upstream.
Adds a driver private tee_context by moving the tee_context in struct
optee_notif to struct optee. This tee_context was previously used when
doing internal calls to secure world to deliver notification.
The new driver internal tee_context is now also when allocating driver
private shared memory. This decouples the shared memory object from its
original tee_context. This is needed when the life time of such a memory
allocation outlives the client tee_context.
This patch fixes the problem described below:
The addition of a shutdown hook by commit f25889f93184 ("optee: fix tee out
of memory failure seen during kexec reboot") introduced a kernel shutdown
regression that can be triggered after running the OP-TEE xtest suites.
Once the shutdown hook is called it is not possible to communicate any more
with the supplicant process because the system is not scheduling task any
longer. Thus if the optee driver shutdown path receives a supplicant RPC
request from the OP-TEE we will deadlock the kernel's shutdown.
Fixes: f25889f93184 ("optee: fix tee out of memory failure seen during kexec reboot")
Fixes: 217e0250cccb ("tee: use reference counting for tee_context")
Reported-by: Lars Persson <[email protected]>
Cc: [email protected]
Reviewed-by: Sumit Garg <[email protected]>
[JW: backport to 5.16-stable + update commit message]
Signed-off-by: Jens Wiklander <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/tee/optee/core.c | 1
drivers/tee/optee/ffa_abi.c | 70 +++++++++++++++++++++-----------------
drivers/tee/optee/optee_private.h | 4 +-
drivers/tee/optee/smc_abi.c | 13 +++++--
4 files changed, 54 insertions(+), 34 deletions(-)
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -157,6 +157,7 @@ void optee_remove_common(struct optee *o
/* Unregister OP-TEE specific client devices on TEE bus */
optee_unregister_devices();
+ teedev_close_context(optee->ctx);
/*
* The two devices have to be unregistered before we can free the
* other resources.
--- a/drivers/tee/optee/ffa_abi.c
+++ b/drivers/tee/optee/ffa_abi.c
@@ -424,6 +424,7 @@ static struct tee_shm_pool_mgr *optee_ff
*/
static void handle_ffa_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
+ struct optee *optee,
struct optee_msg_arg *arg)
{
struct tee_shm *shm;
@@ -439,7 +440,7 @@ static void handle_ffa_rpc_func_cmd_shm_
shm = optee_rpc_cmd_alloc_suppl(ctx, arg->params[0].u.value.b);
break;
case OPTEE_RPC_SHM_TYPE_KERNEL:
- shm = tee_shm_alloc(ctx, arg->params[0].u.value.b,
+ shm = tee_shm_alloc(optee->ctx, arg->params[0].u.value.b,
TEE_SHM_MAPPED | TEE_SHM_PRIV);
break;
default:
@@ -493,14 +494,13 @@ err_bad_param:
}
static void handle_ffa_rpc_func_cmd(struct tee_context *ctx,
+ struct optee *optee,
struct optee_msg_arg *arg)
{
- struct optee *optee = tee_get_drvdata(ctx->teedev);
-
arg->ret_origin = TEEC_ORIGIN_COMMS;
switch (arg->cmd) {
case OPTEE_RPC_CMD_SHM_ALLOC:
- handle_ffa_rpc_func_cmd_shm_alloc(ctx, arg);
+ handle_ffa_rpc_func_cmd_shm_alloc(ctx, optee, arg);
break;
case OPTEE_RPC_CMD_SHM_FREE:
handle_ffa_rpc_func_cmd_shm_free(ctx, optee, arg);
@@ -510,12 +510,12 @@ static void handle_ffa_rpc_func_cmd(stru
}
}
-static void optee_handle_ffa_rpc(struct tee_context *ctx, u32 cmd,
- struct optee_msg_arg *arg)
+static void optee_handle_ffa_rpc(struct tee_context *ctx, struct optee *optee,
+ u32 cmd, struct optee_msg_arg *arg)
{
switch (cmd) {
case OPTEE_FFA_YIELDING_CALL_RETURN_RPC_CMD:
- handle_ffa_rpc_func_cmd(ctx, arg);
+ handle_ffa_rpc_func_cmd(ctx, optee, arg);
break;
case OPTEE_FFA_YIELDING_CALL_RETURN_INTERRUPT:
/* Interrupt delivered by now */
@@ -582,7 +582,7 @@ static int optee_ffa_yielding_call(struc
* above.
*/
cond_resched();
- optee_handle_ffa_rpc(ctx, data->data1, rpc_arg);
+ optee_handle_ffa_rpc(ctx, optee, data->data1, rpc_arg);
cmd = OPTEE_FFA_YIELDING_CALL_RESUME;
data->data0 = cmd;
data->data1 = 0;
@@ -802,7 +802,9 @@ static int optee_ffa_probe(struct ffa_de
{
const struct ffa_dev_ops *ffa_ops;
unsigned int rpc_arg_count;
+ struct tee_shm_pool *pool;
struct tee_device *teedev;
+ struct tee_context *ctx;
struct optee *optee;
int rc;
@@ -822,12 +824,12 @@ static int optee_ffa_probe(struct ffa_de
if (!optee)
return -ENOMEM;
- optee->pool = optee_ffa_config_dyn_shm();
- if (IS_ERR(optee->pool)) {
- rc = PTR_ERR(optee->pool);
- optee->pool = NULL;
- goto err;
+ pool = optee_ffa_config_dyn_shm();
+ if (IS_ERR(pool)) {
+ rc = PTR_ERR(pool);
+ goto err_free_optee;
}
+ optee->pool = pool;
optee->ops = &optee_ffa_ops;
optee->ffa.ffa_dev = ffa_dev;
@@ -838,7 +840,7 @@ static int optee_ffa_probe(struct ffa_de
optee);
if (IS_ERR(teedev)) {
rc = PTR_ERR(teedev);
- goto err;
+ goto err_free_pool;
}
optee->teedev = teedev;
@@ -846,46 +848,54 @@ static int optee_ffa_probe(struct ffa_de
optee);
if (IS_ERR(teedev)) {
rc = PTR_ERR(teedev);
- goto err;
+ goto err_unreg_teedev;
}
optee->supp_teedev = teedev;
rc = tee_device_register(optee->teedev);
if (rc)
- goto err;
+ goto err_unreg_supp_teedev;
rc = tee_device_register(optee->supp_teedev);
if (rc)
- goto err;
+ goto err_unreg_supp_teedev;
rc = rhashtable_init(&optee->ffa.global_ids, &shm_rhash_params);
if (rc)
- goto err;
+ goto err_unreg_supp_teedev;
mutex_init(&optee->ffa.mutex);
mutex_init(&optee->call_queue.mutex);
INIT_LIST_HEAD(&optee->call_queue.waiters);
optee_wait_queue_init(&optee->wait_queue);
optee_supp_init(&optee->supp);
ffa_dev_set_drvdata(ffa_dev, optee);
+ ctx = teedev_open(optee->teedev);
+ if (IS_ERR(ctx))
+ goto err_rhashtable_free;
+ optee->ctx = ctx;
+
rc = optee_enumerate_devices(PTA_CMD_GET_DEVICES);
- if (rc) {
- optee_ffa_remove(ffa_dev);
- return rc;
- }
+ if (rc)
+ goto err_unregister_devices;
pr_info("initialized driver\n");
return 0;
-err:
- /*
- * tee_device_unregister() is safe to call even if the
- * devices hasn't been registered with
- * tee_device_register() yet.
- */
+
+err_unregister_devices:
+ optee_unregister_devices();
+ teedev_close_context(ctx);
+err_rhashtable_free:
+ rhashtable_free_and_destroy(&optee->ffa.global_ids, rh_free_fn, NULL);
+ optee_supp_uninit(&optee->supp);
+ mutex_destroy(&optee->call_queue.mutex);
+err_unreg_supp_teedev:
tee_device_unregister(optee->supp_teedev);
+err_unreg_teedev:
tee_device_unregister(optee->teedev);
- if (optee->pool)
- tee_shm_pool_free(optee->pool);
+err_free_pool:
+ tee_shm_pool_free(pool);
+err_free_optee:
kfree(optee);
return rc;
}
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -123,9 +123,10 @@ struct optee_ops {
/**
* struct optee - main service struct
* @supp_teedev: supplicant device
+ * @teedev: client device
* @ops: internal callbacks for different ways to reach secure
* world
- * @teedev: client device
+ * @ctx: driver internal TEE context
* @smc: specific to SMC ABI
* @ffa: specific to FF-A ABI
* @call_queue: queue of threads waiting to call @invoke_fn
@@ -142,6 +143,7 @@ struct optee {
struct tee_device *supp_teedev;
struct tee_device *teedev;
const struct optee_ops *ops;
+ struct tee_context *ctx;
union {
struct optee_smc smc;
struct optee_ffa ffa;
--- a/drivers/tee/optee/smc_abi.c
+++ b/drivers/tee/optee/smc_abi.c
@@ -608,6 +608,7 @@ static void handle_rpc_func_cmd_shm_free
}
static void handle_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
+ struct optee *optee,
struct optee_msg_arg *arg,
struct optee_call_ctx *call_ctx)
{
@@ -637,7 +638,8 @@ static void handle_rpc_func_cmd_shm_allo
shm = optee_rpc_cmd_alloc_suppl(ctx, sz);
break;
case OPTEE_RPC_SHM_TYPE_KERNEL:
- shm = tee_shm_alloc(ctx, sz, TEE_SHM_MAPPED | TEE_SHM_PRIV);
+ shm = tee_shm_alloc(optee->ctx, sz,
+ TEE_SHM_MAPPED | TEE_SHM_PRIV);
break;
default:
arg->ret = TEEC_ERROR_BAD_PARAMETERS;
@@ -733,7 +735,7 @@ static void handle_rpc_func_cmd(struct t
switch (arg->cmd) {
case OPTEE_RPC_CMD_SHM_ALLOC:
free_pages_list(call_ctx);
- handle_rpc_func_cmd_shm_alloc(ctx, arg, call_ctx);
+ handle_rpc_func_cmd_shm_alloc(ctx, optee, arg, call_ctx);
break;
case OPTEE_RPC_CMD_SHM_FREE:
handle_rpc_func_cmd_shm_free(ctx, arg);
@@ -762,7 +764,7 @@ static void optee_handle_rpc(struct tee_
switch (OPTEE_SMC_RETURN_GET_RPC_FUNC(param->a0)) {
case OPTEE_SMC_RPC_FUNC_ALLOC:
- shm = tee_shm_alloc(ctx, param->a1,
+ shm = tee_shm_alloc(optee->ctx, param->a1,
TEE_SHM_MAPPED | TEE_SHM_PRIV);
if (!IS_ERR(shm) && !tee_shm_get_pa(shm, 0, &pa)) {
reg_pair_from_64(¶m->a1, ¶m->a2, pa);
@@ -1207,6 +1209,7 @@ static int optee_probe(struct platform_d
struct optee *optee = NULL;
void *memremaped_shm = NULL;
struct tee_device *teedev;
+ struct tee_context *ctx;
u32 sec_caps;
int rc;
@@ -1284,6 +1287,10 @@ static int optee_probe(struct platform_d
optee_supp_init(&optee->supp);
optee->smc.memremaped_shm = memremaped_shm;
optee->pool = pool;
+ ctx = teedev_open(optee->teedev);
+ if (IS_ERR(ctx))
+ goto err;
+ optee->ctx = ctx;
/*
* Ensure that there are no pre-existing shm objects before enabling
From: Nícolas F. R. A. Prado <[email protected]>
[ Upstream commit f034cc1301e7d83d4ec428dd6b8ffb57ca446efb ]
The timeout setting for the rtc kselftest is currently 90 seconds. This
setting is used by the kselftest runner to stop running a test if it
takes longer than the assigned value.
However, two of the test cases inside rtc set alarms. These alarms are
set to the next beginning of the minute, so each of these test cases may
take up to, in the worst case, 60 seconds.
In order to allow for all test cases in rtc to run, even in the worst
case, when using the kselftest runner, the timeout value should be
increased to at least 120. Set it to 180, so there's some additional
slack.
Correct operation can be tested by running the following command right
after the start of a minute (low second count), and checking that all
test cases run:
./run_kselftest.sh -c rtc
Signed-off-by: Nícolas F. R. A. Prado <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/rtc/settings | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/rtc/settings b/tools/testing/selftests/rtc/settings
index ba4d85f74cd6b..a953c96aa16e1 100644
--- a/tools/testing/selftests/rtc/settings
+++ b/tools/testing/selftests/rtc/settings
@@ -1 +1 @@
-timeout=90
+timeout=180
--
2.34.1
From: Jonas Gorski <[email protected]>
commit 6aba04ee3263669b335458c4cf4c7d97d6940229 upstream.
This reverts commit 3710e80952cf2dc48257ac9f145b117b5f74e0a5.
Since idm_base and nicpm_base are still optional resources not present
on all platforms, this breaks the driver for everything except Northstar
2 (which has both).
The same change was already reverted once with 755f5738ff98 ("net:
broadcom: fix a mistake about ioremap resource").
So let's do it again.
Fixes: 3710e80952cf ("net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname")
Signed-off-by: Jonas Gorski <[email protected]>
[florian: Added comments to explain the resources are optional]
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/broadcom/bgmac-platform.c | 23 ++++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -172,6 +172,7 @@ static int bgmac_probe(struct platform_d
{
struct device_node *np = pdev->dev.of_node;
struct bgmac *bgmac;
+ struct resource *regs;
int ret;
bgmac = bgmac_alloc(&pdev->dev);
@@ -208,15 +209,23 @@ static int bgmac_probe(struct platform_d
if (IS_ERR(bgmac->plat.base))
return PTR_ERR(bgmac->plat.base);
- bgmac->plat.idm_base = devm_platform_ioremap_resource_byname(pdev, "idm_base");
- if (IS_ERR(bgmac->plat.idm_base))
- return PTR_ERR(bgmac->plat.idm_base);
- else
+ /* The idm_base resource is optional for some platforms */
+ regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "idm_base");
+ if (regs) {
+ bgmac->plat.idm_base = devm_ioremap_resource(&pdev->dev, regs);
+ if (IS_ERR(bgmac->plat.idm_base))
+ return PTR_ERR(bgmac->plat.idm_base);
bgmac->feature_flags &= ~BGMAC_FEAT_IDM_MASK;
+ }
- bgmac->plat.nicpm_base = devm_platform_ioremap_resource_byname(pdev, "nicpm_base");
- if (IS_ERR(bgmac->plat.nicpm_base))
- return PTR_ERR(bgmac->plat.nicpm_base);
+ /* The nicpm_base resource is optional for some platforms */
+ regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nicpm_base");
+ if (regs) {
+ bgmac->plat.nicpm_base = devm_ioremap_resource(&pdev->dev,
+ regs);
+ if (IS_ERR(bgmac->plat.nicpm_base))
+ return PTR_ERR(bgmac->plat.nicpm_base);
+ }
bgmac->read = platform_bgmac_read;
bgmac->write = platform_bgmac_write;
From: Florian Westphal <[email protected]>
[ Upstream commit 77b337196a9d87f3d6bb9b07c0436ecafbffda1e ]
Vivek Thrivikraman reported:
An SCTP server application which is accessed continuously by client
application.
When the session disconnects the client retries to establish a connection.
After restart of SCTP server application the session is not established
because of stale conntrack entry with connection state CLOSED as below.
(removing this entry manually established new connection):
sctp 9 CLOSED src=10.141.189.233 [..] [ASSURED]
Just skip timeout update of closed entries, we don't want them to
stay around forever.
Reported-and-tested-by: Vivek Thrivikraman <[email protected]>
Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1579
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
net/netfilter/nf_conntrack_proto_sctp.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 2394238d01c91..5a936334b517a 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -489,6 +489,15 @@ int nf_conntrack_sctp_packet(struct nf_conn *ct,
pr_debug("Setting vtag %x for dir %d\n",
ih->init_tag, !dir);
ct->proto.sctp.vtag[!dir] = ih->init_tag;
+
+ /* don't renew timeout on init retransmit so
+ * port reuse by client or NAT middlebox cannot
+ * keep entry alive indefinitely (incl. nat info).
+ */
+ if (new_state == SCTP_CONNTRACK_CLOSED &&
+ old_state == SCTP_CONNTRACK_CLOSED &&
+ nf_ct_is_confirmed(ct))
+ ignore = true;
}
ct->proto.sctp.state = new_state;
--
2.34.1
From: Basavaraj Natikar <[email protected]>
commit a7072c01c3ac3ae6ecd08fa7b43431cfc8ed331f upstream.
HPD sensors take more time to initialize. Hence increasing sensor
command timeout to get response with status within a max timeout.
Fixes: 173709f50e98 ("HID: amd_sfh: Add command response to check command status")
Signed-off-by: Basavaraj Natikar <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
@@ -37,11 +37,11 @@ static int amd_sfh_wait_response_v2(stru
{
union cmd_response cmd_resp;
- /* Get response with status within a max of 800 ms timeout */
+ /* Get response with status within a max of 1600 ms timeout */
if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
(cmd_resp.response_v2.response == sensor_sts &&
cmd_resp.response_v2.status == 0 && (sid == 0xff ||
- cmd_resp.response_v2.sensor_id == sid)), 500, 800000))
+ cmd_resp.response_v2.sensor_id == sid)), 500, 1600000))
return cmd_resp.response_v2.response;
return SENSOR_DISABLED;
From: Nicholas Bishop <[email protected]>
commit 364438fd629f7611a84c8e6d7de91659300f1502 upstream.
The iMac 12,1 does not use the gmux driver for backlight, so the radeon
backlight device is needed to set the brightness.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Signed-off-by: Nicholas Bishop <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/atombios_encoders.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -198,7 +198,8 @@ void radeon_atom_backlight_init(struct r
* so don't register a backlight device
*/
if ((rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
- (rdev->pdev->device == 0x6741))
+ (rdev->pdev->device == 0x6741) &&
+ !dmi_match(DMI_PRODUCT_NAME, "iMac12,1"))
return;
if (!radeon_encoder->enc_priv)
From: Hao Luo <[email protected]>
commit 34d3a78c681e8e7844b43d1a2f4671a04249c821 upstream.
Tag the return type of {per, this}_cpu_ptr with RDONLY_MEM. The
returned value of this pair of helpers is kernel object, which
can not be updated by bpf programs. Previously these two helpers
return PTR_OT_MEM for kernel objects of scalar type, which allows
one to directly modify the memory. Now with RDONLY_MEM tagging,
the verifier will reject programs that write into RDONLY_MEM.
Fixes: 63d9b80dcf2c ("bpf: Introducte bpf_this_cpu_ptr()")
Fixes: eaa6bcb71ef6 ("bpf: Introduce bpf_per_cpu_ptr()")
Fixes: 4976b718c355 ("bpf: Introduce pseudo_btf_id")
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/bpf/helpers.c | 4 ++--
kernel/bpf/verifier.c | 30 ++++++++++++++++++++++++++----
2 files changed, 28 insertions(+), 6 deletions(-)
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -667,7 +667,7 @@ BPF_CALL_2(bpf_per_cpu_ptr, const void *
const struct bpf_func_proto bpf_per_cpu_ptr_proto = {
.func = bpf_per_cpu_ptr,
.gpl_only = false,
- .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | PTR_MAYBE_NULL,
+ .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | PTR_MAYBE_NULL | MEM_RDONLY,
.arg1_type = ARG_PTR_TO_PERCPU_BTF_ID,
.arg2_type = ARG_ANYTHING,
};
@@ -680,7 +680,7 @@ BPF_CALL_1(bpf_this_cpu_ptr, const void
const struct bpf_func_proto bpf_this_cpu_ptr_proto = {
.func = bpf_this_cpu_ptr,
.gpl_only = false,
- .ret_type = RET_PTR_TO_MEM_OR_BTF_ID,
+ .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | MEM_RDONLY,
.arg1_type = ARG_PTR_TO_PERCPU_BTF_ID,
};
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -4333,15 +4333,30 @@ static int check_mem_access(struct bpf_v
mark_reg_unknown(env, regs, value_regno);
}
}
- } else if (reg->type == PTR_TO_MEM) {
+ } else if (base_type(reg->type) == PTR_TO_MEM) {
+ bool rdonly_mem = type_is_rdonly_mem(reg->type);
+
+ if (type_may_be_null(reg->type)) {
+ verbose(env, "R%d invalid mem access '%s'\n", regno,
+ reg_type_str(env, reg->type));
+ return -EACCES;
+ }
+
+ if (t == BPF_WRITE && rdonly_mem) {
+ verbose(env, "R%d cannot write into %s\n",
+ regno, reg_type_str(env, reg->type));
+ return -EACCES;
+ }
+
if (t == BPF_WRITE && value_regno >= 0 &&
is_pointer_value(env, value_regno)) {
verbose(env, "R%d leaks addr into mem\n", value_regno);
return -EACCES;
}
+
err = check_mem_region_access(env, regno, off, size,
reg->mem_size, false);
- if (!err && t == BPF_READ && value_regno >= 0)
+ if (!err && value_regno >= 0 && (t == BPF_READ || rdonly_mem))
mark_reg_unknown(env, regs, value_regno);
} else if (reg->type == PTR_TO_CTX) {
enum bpf_reg_type reg_type = SCALAR_VALUE;
@@ -6550,6 +6565,13 @@ static int check_helper_call(struct bpf_
regs[BPF_REG_0].type = PTR_TO_MEM | ret_flag;
regs[BPF_REG_0].mem_size = tsize;
} else {
+ /* MEM_RDONLY may be carried from ret_flag, but it
+ * doesn't apply on PTR_TO_BTF_ID. Fold it, otherwise
+ * it will confuse the check of PTR_TO_BTF_ID in
+ * check_mem_access().
+ */
+ ret_flag &= ~MEM_RDONLY;
+
regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
regs[BPF_REG_0].btf = meta.ret_btf;
regs[BPF_REG_0].btf_id = meta.ret_btf_id;
@@ -9362,7 +9384,7 @@ static int check_ld_imm(struct bpf_verif
if (insn->src_reg == BPF_PSEUDO_BTF_ID) {
dst_reg->type = aux->btf_var.reg_type;
- switch (dst_reg->type) {
+ switch (base_type(dst_reg->type)) {
case PTR_TO_MEM:
dst_reg->mem_size = aux->btf_var.mem_size;
break;
@@ -11505,7 +11527,7 @@ static int check_pseudo_btf_id(struct bp
err = -EINVAL;
goto err_put;
}
- aux->btf_var.reg_type = PTR_TO_MEM;
+ aux->btf_var.reg_type = PTR_TO_MEM | MEM_RDONLY;
aux->btf_var.mem_size = tsize;
} else {
aux->btf_var.reg_type = PTR_TO_BTF_ID;
From: Takashi Iwai <[email protected]>
commit 6317f7449348a897483a2b4841f7a9190745c81b upstream.
The forced probe mask via probe_mask 0x100 bit doesn't work any longer
as expected since the bus init code was moved and it's clearing the
codec_mask value that was set beforehand. This patch fixes the
long-time regression by moving the check_probe_mask() call.
Fixes: a41d122449be ("ALSA: hda - Embed bus into controller object")
Reported-by: [email protected]
Cc: <[email protected]>
Link: https://lore.kernel.org/r/trinity-f018660b-95c9-442b-a2a8-c92a56eb07ed-1644345967148@3c-app-webde-bap22
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/pci/hda/hda_intel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1794,8 +1794,6 @@ static int azx_create(struct snd_card *c
assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
- check_probe_mask(chip, dev);
-
if (single_cmd < 0) /* allow fallback to single_cmd at errors */
chip->fallback_to_single_cmd = 1;
else /* explicitly set to single_cmd or not */
@@ -1821,6 +1819,8 @@ static int azx_create(struct snd_card *c
chip->bus.core.needs_damn_long_delay = 1;
}
+ check_probe_mask(chip, dev);
+
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err < 0) {
dev_err(card->dev, "Error creating device [card]!\n");
From: Hao Luo <[email protected]>
commit cf9f2f8d62eca810afbd1ee6cc0800202b000e57 upstream.
Remove PTR_TO_MEM_OR_NULL and replace it with PTR_TO_MEM combined with
flag PTR_MAYBE_NULL.
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 1 -
kernel/bpf/btf.c | 2 +-
kernel/bpf/verifier.c | 2 +-
3 files changed, 2 insertions(+), 3 deletions(-)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -506,7 +506,6 @@ enum bpf_reg_type {
PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | PTR_TO_SOCK_COMMON,
PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | PTR_TO_TCP_SOCK,
PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | PTR_TO_BTF_ID,
- PTR_TO_MEM_OR_NULL = PTR_MAYBE_NULL | PTR_TO_MEM,
/* This must be the last entry. Its purpose is to ensure the enum is
* wide enough to hold the higher bits reserved for bpf_type_flag.
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -5847,7 +5847,7 @@ int btf_prepare_func_args(struct bpf_ver
return -EINVAL;
}
- reg->type = PTR_TO_MEM_OR_NULL;
+ reg->type = PTR_TO_MEM | PTR_MAYBE_NULL;
reg->id = ++env->id_gen;
continue;
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -13336,7 +13336,7 @@ static int do_check_common(struct bpf_ve
mark_reg_known_zero(env, regs, i);
else if (regs[i].type == SCALAR_VALUE)
mark_reg_unknown(env, regs, i);
- else if (regs[i].type == PTR_TO_MEM_OR_NULL) {
+ else if (base_type(regs[i].type) == PTR_TO_MEM) {
const u32 mem_size = regs[i].mem_size;
mark_reg_known_zero(env, regs, i);
From: Ignat Korchagin <[email protected]>
commit 26394fc118d6115390bd5b3a0fb17096271da227 upstream.
Some time ago 8965779d2c0e ("ipv6,mcast: always hold idev->lock before mca_lock")
switched ipv6_get_lladdr() to __ipv6_get_lladdr(), which is rcu-unsafe
version. That was OK, because idev->lock was held for these codepaths.
In 88e2ca308094 ("mld: convert ifmcaddr6 to RCU") these external locks were
removed, so we probably need to restore the original rcu-safe call.
Otherwise, we occasionally get a machine crashed/stalled with the following
in dmesg:
[ 3405.966610][T230589] general protection fault, probably for non-canonical address 0xdead00000000008c: 0000 [#1] SMP NOPTI
[ 3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: G O 5.15.19-cloudflare-2022.2.1 #1
[ 3405.998061][T230589] Hardware name: SUPA-COOL-SERV
[ 3406.009552][T230589] Workqueue: mld mld_ifc_work
[ 3406.017224][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60
[ 3406.025780][T230589] Code: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 <66> 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b
[ 3406.055748][T230589] RSP: 0018:ffff94e4b3fc3d10 EFLAGS: 00010202
[ 3406.065617][T230589] RAX: dead00000000005a RBX: ffff94e4b3fc3d30 RCX: 0000000000000040
[ 3406.077477][T230589] RDX: dead000000000122 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008
[ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000
[ 3406.101445][T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100
[ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 00000000000005dc R15: ffff8c3a31431000
[ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000
[ 3406.138992][T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0000000000350ee0
[ 3406.162421][T230589] Call Trace:
[ 3406.170235][T230589] <TASK>
[ 3406.177736][T230589] mld_newpack+0xfe/0x1a0
[ 3406.186686][T230589] add_grhead+0x87/0xa0
[ 3406.195498][T230589] add_grec+0x485/0x4e0
[ 3406.204310][T230589] ? newidle_balance+0x126/0x3f0
[ 3406.214024][T230589] mld_ifc_work+0x15d/0x450
[ 3406.223279][T230589] process_one_work+0x1e6/0x380
[ 3406.232982][T230589] worker_thread+0x50/0x3a0
[ 3406.242371][T230589] ? rescuer_thread+0x360/0x360
[ 3406.252175][T230589] kthread+0x127/0x150
[ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40
[ 3406.271287][T230589] ret_from_fork+0x22/0x30
[ 3406.280812][T230589] </TASK>
[ 3406.288937][T230589] Modules linked in: ... [last unloaded: kheaders]
[ 3406.476714][T230589] ---[ end trace 3525a7655f2f3b9e ]---
Fixes: 88e2ca308094 ("mld: convert ifmcaddr6 to RCU")
Reported-by: David Pinilla Caparros <[email protected]>
Signed-off-by: Ignat Korchagin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/net/addrconf.h | 2 --
net/ipv6/addrconf.c | 4 ++--
net/ipv6/mcast.c | 2 +-
3 files changed, 3 insertions(+), 5 deletions(-)
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -109,8 +109,6 @@ struct inet6_ifaddr *ipv6_get_ifaddr(str
int ipv6_dev_get_saddr(struct net *net, const struct net_device *dev,
const struct in6_addr *daddr, unsigned int srcprefs,
struct in6_addr *saddr);
-int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
- u32 banned_flags);
int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
u32 banned_flags);
bool inet_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2,
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1839,8 +1839,8 @@ out:
}
EXPORT_SYMBOL(ipv6_dev_get_saddr);
-int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
- u32 banned_flags)
+static int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
+ u32 banned_flags)
{
struct inet6_ifaddr *ifp;
int err = -EADDRNOTAVAIL;
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1759,7 +1759,7 @@ static struct sk_buff *mld_newpack(struc
skb_reserve(skb, hlen);
skb_tailroom_reserve(skb, mtu, tlen);
- if (__ipv6_get_lladdr(idev, &addr_buf, IFA_F_TENTATIVE)) {
+ if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
/* <draft-ietf-magma-mld-source-05.txt>:
* use unspecified address as the source address
* when a valid link-local address is not available.
From: Wan Jiabing <[email protected]>
[ Upstream commit 80c469a0a03763f814715f3d12b6f3964c7423e8 ]
Fix following coccicheck warning:
./arch/arm/mach-omap2/omap_hwmod.c:753:1-23: WARNING: Function
for_each_matching_node should have of_node_put() before break
Early exits from for_each_matching_node should decrement the
node reference counter.
Signed-off-by: Wan Jiabing <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm/mach-omap2/omap_hwmod.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index ccb0e3732c0dc..31d1a21f60416 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -752,8 +752,10 @@ static int __init _init_clkctrl_providers(void)
for_each_matching_node(np, ti_clkctrl_match_table) {
ret = _setup_clkctrl_provider(np);
- if (ret)
+ if (ret) {
+ of_node_put(np);
break;
+ }
}
return ret;
--
2.34.1
From: Eric Dumazet <[email protected]>
commit 25206111512de994dfc914f5b2972a22aa904ef3 upstream.
alg_memory_allocated does not seem to be really used.
alg_proto does have a .memory_allocated field, but no
corresponding .sysctl_mem.
This means sk_has_account() returns true, but all sk_prot_mem_limits()
users will trigger a NULL dereference [1].
THis was not a problem until SO_RESERVE_MEM addition.
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 3591 Comm: syz-executor153 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline]
RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000
Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48
RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120
RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025
R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840
R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001
FS: 0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
sock_setsockopt+0x14a9/0x3a30 net/core/sock.c:1446
__sys_setsockopt+0x5af/0x980 net/socket.c:2176
__do_sys_setsockopt net/socket.c:2191 [inline]
__se_sys_setsockopt net/socket.c:2188 [inline]
__x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2188
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc7440fddc9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe98f07968 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc7440fddc9
RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000004 R09: 00007ffe98f07990
R10: 0000000020000000 R11: 0000000000000246 R12: 00007ffe98f0798c
R13: 00007ffe98f079a0 R14: 00007ffe98f079e0 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline]
RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000
Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48
RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120
RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025
R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840
R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001
FS: 0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Fixes: 2bb2f5fb21b0 ("net: add new socket option SO_RESERVE_MEM")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Wei Wang <[email protected]>
Reported-by: syzbot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
crypto/af_alg.c | 3 ---
1 file changed, 3 deletions(-)
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -25,12 +25,9 @@ struct alg_type_list {
struct list_head list;
};
-static atomic_long_t alg_memory_allocated;
-
static struct proto alg_proto = {
.name = "ALG",
.owner = THIS_MODULE,
- .memory_allocated = &alg_memory_allocated,
.obj_size = sizeof(struct alg_sock),
};
From: Matthew Auld <[email protected]>
commit 0bdc0a0699929c814a8aecd55d2accb8c11beae2 upstream.
For some reason we are selecting PRIO_HAS_PAGES when we don't have
mm.pages, and vice versa.
v2(Thomas):
- Add missing fixes tag
Fixes: 213d50927763 ("drm/i915/ttm: Introduce a TTM i915 gem object backend")
Signed-off-by: Matthew Auld <[email protected]>
Cc: Thomas Hellström <[email protected]>
Reviewed-by: Thomas Hellström <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit ba2c5d15022a565da187d90e2fe44768e33e5034)
Signed-off-by: Tvrtko Ursulin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -787,11 +787,9 @@ static void i915_ttm_adjust_lru(struct d
if (obj->mm.madv != I915_MADV_WILLNEED) {
bo->priority = I915_TTM_PRIO_PURGE;
} else if (!i915_gem_object_has_pages(obj)) {
- if (bo->priority < I915_TTM_PRIO_HAS_PAGES)
- bo->priority = I915_TTM_PRIO_HAS_PAGES;
+ bo->priority = I915_TTM_PRIO_NO_PAGES;
} else {
- if (bo->priority > I915_TTM_PRIO_NO_PAGES)
- bo->priority = I915_TTM_PRIO_NO_PAGES;
+ bo->priority = I915_TTM_PRIO_HAS_PAGES;
}
ttm_bo_move_to_lru_tail(bo, bo->resource, NULL);
From: David Woodhouse <[email protected]>
commit fcb732d8f8cf6084f8480015ad41d25fb023a4dd upstream.
There are circumstances whem kvm_xen_update_runstate_guest() should not
sleep because it ends up being called from __schedule() when the vCPU
is preempted:
[ 222.830825] kvm_xen_update_runstate_guest+0x24/0x100
[ 222.830878] kvm_arch_vcpu_put+0x14c/0x200
[ 222.830920] kvm_sched_out+0x30/0x40
[ 222.830960] __schedule+0x55c/0x9f0
To handle this, make it use the same trick as __kvm_xen_has_interrupt(),
of using the hva from the gfn_to_hva_cache directly. Then it can use
pagefault_disable() around the accesses and just bail out if the page
is absent (which is unlikely).
I almost switched to using a gfn_to_pfn_cache here and bailing out if
kvm_map_gfn() fails, like kvm_steal_time_set_preempted() does — but on
closer inspection it looks like kvm_map_gfn() will *always* fail in
atomic context for a page in IOMEM, which means it will silently fail
to make the update every single time for such guests, AFAICT. So I
didn't do it that way after all. And will probably fix that one too.
Cc: [email protected]
Fixes: 30b5c851af79 ("KVM: x86/xen: Add support for vCPU runstate information")
Signed-off-by: David Woodhouse <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kvm/xen.c | 97 ++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 67 insertions(+), 30 deletions(-)
--- a/arch/x86/kvm/xen.c
+++ b/arch/x86/kvm/xen.c
@@ -93,32 +93,57 @@ static void kvm_xen_update_runstate(stru
void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, int state)
{
struct kvm_vcpu_xen *vx = &v->arch.xen;
+ struct gfn_to_hva_cache *ghc = &vx->runstate_cache;
+ struct kvm_memslots *slots = kvm_memslots(v->kvm);
+ bool atomic = (state == RUNSTATE_runnable);
uint64_t state_entry_time;
- unsigned int offset;
+ int __user *user_state;
+ uint64_t __user *user_times;
kvm_xen_update_runstate(v, state);
if (!vx->runstate_set)
return;
- BUILD_BUG_ON(sizeof(struct compat_vcpu_runstate_info) != 0x2c);
+ if (unlikely(slots->generation != ghc->generation || kvm_is_error_hva(ghc->hva)) &&
+ kvm_gfn_to_hva_cache_init(v->kvm, ghc, ghc->gpa, ghc->len))
+ return;
+
+ /* We made sure it fits in a single page */
+ BUG_ON(!ghc->memslot);
+
+ if (atomic)
+ pagefault_disable();
- offset = offsetof(struct compat_vcpu_runstate_info, state_entry_time);
-#ifdef CONFIG_X86_64
/*
- * The only difference is alignment of uint64_t in 32-bit.
- * So the first field 'state' is accessed directly using
- * offsetof() (where its offset happens to be zero), while the
- * remaining fields which are all uint64_t, start at 'offset'
- * which we tweak here by adding 4.
+ * The only difference between 32-bit and 64-bit versions of the
+ * runstate struct us the alignment of uint64_t in 32-bit, which
+ * means that the 64-bit version has an additional 4 bytes of
+ * padding after the first field 'state'.
+ *
+ * So we use 'int __user *user_state' to point to the state field,
+ * and 'uint64_t __user *user_times' for runstate_entry_time. So
+ * the actual array of time[] in each state starts at user_times[1].
*/
+ BUILD_BUG_ON(offsetof(struct vcpu_runstate_info, state) != 0);
+ BUILD_BUG_ON(offsetof(struct compat_vcpu_runstate_info, state) != 0);
+ user_state = (int __user *)ghc->hva;
+
+ BUILD_BUG_ON(sizeof(struct compat_vcpu_runstate_info) != 0x2c);
+
+ user_times = (uint64_t __user *)(ghc->hva +
+ offsetof(struct compat_vcpu_runstate_info,
+ state_entry_time));
+#ifdef CONFIG_X86_64
BUILD_BUG_ON(offsetof(struct vcpu_runstate_info, state_entry_time) !=
offsetof(struct compat_vcpu_runstate_info, state_entry_time) + 4);
BUILD_BUG_ON(offsetof(struct vcpu_runstate_info, time) !=
offsetof(struct compat_vcpu_runstate_info, time) + 4);
if (v->kvm->arch.xen.long_mode)
- offset = offsetof(struct vcpu_runstate_info, state_entry_time);
+ user_times = (uint64_t __user *)(ghc->hva +
+ offsetof(struct vcpu_runstate_info,
+ state_entry_time));
#endif
/*
* First write the updated state_entry_time at the appropriate
@@ -132,10 +157,8 @@ void kvm_xen_update_runstate_guest(struc
BUILD_BUG_ON(sizeof_field(struct compat_vcpu_runstate_info, state_entry_time) !=
sizeof(state_entry_time));
- if (kvm_write_guest_offset_cached(v->kvm, &v->arch.xen.runstate_cache,
- &state_entry_time, offset,
- sizeof(state_entry_time)))
- return;
+ if (__put_user(state_entry_time, user_times))
+ goto out;
smp_wmb();
/*
@@ -149,11 +172,8 @@ void kvm_xen_update_runstate_guest(struc
BUILD_BUG_ON(sizeof_field(struct compat_vcpu_runstate_info, state) !=
sizeof(vx->current_runstate));
- if (kvm_write_guest_offset_cached(v->kvm, &v->arch.xen.runstate_cache,
- &vx->current_runstate,
- offsetof(struct vcpu_runstate_info, state),
- sizeof(vx->current_runstate)))
- return;
+ if (__put_user(vx->current_runstate, user_state))
+ goto out;
/*
* Write the actual runstate times immediately after the
@@ -168,24 +188,23 @@ void kvm_xen_update_runstate_guest(struc
BUILD_BUG_ON(sizeof_field(struct vcpu_runstate_info, time) !=
sizeof(vx->runstate_times));
- if (kvm_write_guest_offset_cached(v->kvm, &v->arch.xen.runstate_cache,
- &vx->runstate_times[0],
- offset + sizeof(u64),
- sizeof(vx->runstate_times)))
- return;
-
+ if (__copy_to_user(user_times + 1, vx->runstate_times, sizeof(vx->runstate_times)))
+ goto out;
smp_wmb();
/*
* Finally, clear the XEN_RUNSTATE_UPDATE bit in the guest's
* runstate_entry_time field.
*/
-
state_entry_time &= ~XEN_RUNSTATE_UPDATE;
- if (kvm_write_guest_offset_cached(v->kvm, &v->arch.xen.runstate_cache,
- &state_entry_time, offset,
- sizeof(state_entry_time)))
- return;
+ __put_user(state_entry_time, user_times);
+ smp_wmb();
+
+ out:
+ mark_page_dirty_in_slot(v->kvm, ghc->memslot, ghc->gpa >> PAGE_SHIFT);
+
+ if (atomic)
+ pagefault_enable();
}
int __kvm_xen_has_interrupt(struct kvm_vcpu *v)
@@ -337,6 +356,12 @@ int kvm_xen_vcpu_set_attr(struct kvm_vcp
break;
}
+ /* It must fit within a single page */
+ if ((data->u.gpa & ~PAGE_MASK) + sizeof(struct vcpu_info) > PAGE_SIZE) {
+ r = -EINVAL;
+ break;
+ }
+
r = kvm_gfn_to_hva_cache_init(vcpu->kvm,
&vcpu->arch.xen.vcpu_info_cache,
data->u.gpa,
@@ -354,6 +379,12 @@ int kvm_xen_vcpu_set_attr(struct kvm_vcp
break;
}
+ /* It must fit within a single page */
+ if ((data->u.gpa & ~PAGE_MASK) + sizeof(struct pvclock_vcpu_time_info) > PAGE_SIZE) {
+ r = -EINVAL;
+ break;
+ }
+
r = kvm_gfn_to_hva_cache_init(vcpu->kvm,
&vcpu->arch.xen.vcpu_time_info_cache,
data->u.gpa,
@@ -375,6 +406,12 @@ int kvm_xen_vcpu_set_attr(struct kvm_vcp
break;
}
+ /* It must fit within a single page */
+ if ((data->u.gpa & ~PAGE_MASK) + sizeof(struct vcpu_runstate_info) > PAGE_SIZE) {
+ r = -EINVAL;
+ break;
+ }
+
r = kvm_gfn_to_hva_cache_init(vcpu->kvm,
&vcpu->arch.xen.runstate_cache,
data->u.gpa,
From: Eric W. Biederman <[email protected]>
commit 8f2f9c4d82f24f172ae439e5035fc1e0e4c229dd upstream.
Michal Koutný <[email protected]> wrote:
> It was reported that v5.14 behaves differently when enforcing
> RLIMIT_NPROC limit, namely, it allows one more task than previously.
> This is consequence of the commit 21d1c5e386bc ("Reimplement
> RLIMIT_NPROC on top of ucounts") that missed the sharpness of
> equality in the forking path.
This can be fixed either by fixing the test or by moving the increment
to be before the test. Fix it my moving copy_creds which contains
the increment before is_ucounts_overlimit.
In the case of CLONE_NEWUSER the ucounts in the task_cred changes.
The function is_ucounts_overlimit needs to use the final version of
the ucounts for the new process. Which means moving the
is_ucounts_overlimit test after copy_creds is necessary.
Both the test in fork and the test in set_user were semantically
changed when the code moved to ucounts. The change of the test in
fork was bad because it was before the increment. The test in
set_user was wrong and the change to ucounts fixed it. So this
fix only restores the old behavior in one lcation not two.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Reported-by: Michal Koutný <[email protected]>
Reviewed-by: Michal Koutný <[email protected]>
Fixes: 21d1c5e386bc ("Reimplement RLIMIT_NPROC on top of ucounts")
Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/fork.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2052,18 +2052,18 @@ static __latent_entropy struct task_stru
#ifdef CONFIG_PROVE_LOCKING
DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
#endif
+ retval = copy_creds(p, clone_flags);
+ if (retval < 0)
+ goto bad_fork_free;
+
retval = -EAGAIN;
if (is_ucounts_overlimit(task_ucounts(p), UCOUNT_RLIMIT_NPROC, rlimit(RLIMIT_NPROC))) {
if (p->real_cred->user != INIT_USER &&
!capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN))
- goto bad_fork_free;
+ goto bad_fork_cleanup_count;
}
current->flags &= ~PF_NPROC_EXCEEDED;
- retval = copy_creds(p, clone_flags);
- if (retval < 0)
- goto bad_fork_free;
-
/*
* If multiple threads are within copy_process(), then this check
* triggers too late. This doesn't hurt, the check is only there
From: Cristian Marussi <[email protected]>
[ Upstream commit dae1d8ac31896988e7313384c0370176a75e9b45 ]
Report mincore.check_file_mmap as SKIP instead of FAIL if the underlying
filesystem lacks support of O_TMPFILE or fallocate since such failures
are not really related to mincore functionality.
Cc: Ricardo Cañuelo <[email protected]>
Signed-off-by: Cristian Marussi <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
.../selftests/mincore/mincore_selftest.c | 20 +++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c
index e54106643337b..4c88238fc8f05 100644
--- a/tools/testing/selftests/mincore/mincore_selftest.c
+++ b/tools/testing/selftests/mincore/mincore_selftest.c
@@ -207,15 +207,21 @@ TEST(check_file_mmap)
errno = 0;
fd = open(".", O_TMPFILE | O_RDWR, 0600);
- ASSERT_NE(-1, fd) {
- TH_LOG("Can't create temporary file: %s",
- strerror(errno));
+ if (fd < 0) {
+ ASSERT_EQ(errno, EOPNOTSUPP) {
+ TH_LOG("Can't create temporary file: %s",
+ strerror(errno));
+ }
+ SKIP(goto out_free, "O_TMPFILE not supported by filesystem.");
}
errno = 0;
retval = fallocate(fd, 0, 0, FILE_SIZE);
- ASSERT_EQ(0, retval) {
- TH_LOG("Error allocating space for the temporary file: %s",
- strerror(errno));
+ if (retval) {
+ ASSERT_EQ(errno, EOPNOTSUPP) {
+ TH_LOG("Error allocating space for the temporary file: %s",
+ strerror(errno));
+ }
+ SKIP(goto out_close, "fallocate not supported by filesystem.");
}
/*
@@ -271,7 +277,9 @@ TEST(check_file_mmap)
}
munmap(addr, FILE_SIZE);
+out_close:
close(fd);
+out_free:
free(vec);
}
--
2.34.1
From: Jason A. Donenfeld <[email protected]>
[ Upstream commit 042e293e16e3aa9794ce60c29f5b7b0c8170f933 ]
When account() is called, and the amount of entropy dips below
random_write_wakeup_bits, we wake up the random writers, so that they
can write some more in. However, the RNDZAPENTCNT/RNDCLEARPOOL ioctl
sets the entropy count to zero -- a potential reduction just like
account() -- but does not unblock writers. This commit adds the missing
logic to that ioctl to unblock waiting writers.
Reviewed-by: Dominik Brodowski <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/char/random.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index a27ae3999ff32..ebe86de9d0acc 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1963,7 +1963,10 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
*/
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- input_pool.entropy_count = 0;
+ if (xchg(&input_pool.entropy_count, 0) && random_write_wakeup_bits) {
+ wake_up_interruptible(&random_write_wait);
+ kill_fasync(&fasync, SIGIO, POLL_OUT);
+ }
return 0;
case RNDRESEEDCRNG:
if (!capable(CAP_SYS_ADMIN))
--
2.34.1
From: Andy Lutomirski <[email protected]>
commit 44cad52cc14ae10062f142ec16ede489bccf4469 upstream.
xfpregs_set() handles 32-bit REGSET_XFP and 64-bit REGSET_FP. The actual
code treats these regsets as modern FX state (i.e. the beginning part of
XSTATE). The declarations of the regsets thought they were the legacy
i387 format. The code thought they were the 32-bit (no xmm8..15) variant
of XSTATE and, for good measure, made the high bits disappear by zeroing
the wrong part of the buffer. The latter broke ptrace, and everything
else confused anyone trying to understand the code. In particular, the
nonsense definitions of the regsets confused me when I wrote this code.
Clean this all up. Change the declarations to match reality (which
shouldn't change the generated code, let alone the ABI) and fix
xfpregs_set() to clear the correct bits and to only do so for 32-bit
callers.
Fixes: 6164331d15f7 ("x86/fpu: Rewrite xfpregs_set()")
Reported-by: Luís Ferreira <[email protected]>
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215524
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/fpu/regset.c | 9 ++++-----
arch/x86/kernel/ptrace.c | 4 ++--
2 files changed, 6 insertions(+), 7 deletions(-)
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -91,11 +91,9 @@ int xfpregs_set(struct task_struct *targ
const void *kbuf, const void __user *ubuf)
{
struct fpu *fpu = &target->thread.fpu;
- struct user32_fxsr_struct newstate;
+ struct fxregs_state newstate;
int ret;
- BUILD_BUG_ON(sizeof(newstate) != sizeof(struct fxregs_state));
-
if (!cpu_feature_enabled(X86_FEATURE_FXSR))
return -ENODEV;
@@ -116,9 +114,10 @@ int xfpregs_set(struct task_struct *targ
/* Copy the state */
memcpy(&fpu->fpstate->regs.fxsave, &newstate, sizeof(newstate));
- /* Clear xmm8..15 */
+ /* Clear xmm8..15 for 32-bit callers */
BUILD_BUG_ON(sizeof(fpu->__fpstate.regs.fxsave.xmm_space) != 16 * 16);
- memset(&fpu->fpstate->regs.fxsave.xmm_space[8], 0, 8 * 16);
+ if (in_ia32_syscall())
+ memset(&fpu->fpstate->regs.fxsave.xmm_space[8*4], 0, 8 * 16);
/* Mark FP and SSE as in use when XSAVE is enabled */
if (use_xsave())
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1224,7 +1224,7 @@ static struct user_regset x86_64_regsets
},
[REGSET_FP] = {
.core_note_type = NT_PRFPREG,
- .n = sizeof(struct user_i387_struct) / sizeof(long),
+ .n = sizeof(struct fxregs_state) / sizeof(long),
.size = sizeof(long), .align = sizeof(long),
.active = regset_xregset_fpregs_active, .regset_get = xfpregs_get, .set = xfpregs_set
},
@@ -1271,7 +1271,7 @@ static struct user_regset x86_32_regsets
},
[REGSET_XFP] = {
.core_note_type = NT_PRXFPREG,
- .n = sizeof(struct user32_fxsr_struct) / sizeof(u32),
+ .n = sizeof(struct fxregs_state) / sizeof(u32),
.size = sizeof(u32), .align = sizeof(u32),
.active = regset_xregset_fpregs_active, .regset_get = xfpregs_get, .set = xfpregs_set
},
From: Steve French <[email protected]>
commit 53923e0fe2098f90f339510aeaa0e1413ae99a16 upstream.
When mounting with SMB2.1 or earlier, even with nomultichannel, we
log the confusing warning message:
"CIFS: VFS: multichannel is not supported on this protocol version, use 3.0 or above"
Fix this so that we don't log this unless they really are trying
to mount with multichannel.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215608
Reported-by: Kim Scarborough <[email protected]>
Cc: [email protected] # 5.11+
Reviewed-by: Paulo Alcantara (SUSE) <[email protected]>
Signed-off-by: Steve French <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/cifs/sess.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -76,11 +76,6 @@ int cifs_try_adding_channels(struct cifs
struct cifs_server_iface *ifaces = NULL;
size_t iface_count;
- if (ses->server->dialect < SMB30_PROT_ID) {
- cifs_dbg(VFS, "multichannel is not supported on this protocol version, use 3.0 or above\n");
- return 0;
- }
-
spin_lock(&ses->chan_lock);
new_chan_count = old_chan_count = ses->chan_count;
@@ -94,6 +89,12 @@ int cifs_try_adding_channels(struct cifs
return 0;
}
+ if (ses->server->dialect < SMB30_PROT_ID) {
+ spin_unlock(&ses->chan_lock);
+ cifs_dbg(VFS, "multichannel is not supported on this protocol version, use 3.0 or above\n");
+ return 0;
+ }
+
if (!(ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) {
ses->chan_max = 1;
spin_unlock(&ses->chan_lock);
From: Steen Hegelund <[email protected]>
[ Upstream commit 81eb8b0b18789e647e65579303529fd52d861cc2 ]
Do not try to use any SKB fields after the packet has been passed up in the
receive stack.
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Steen Hegelund <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/net/ethernet/microchip/sparx5/sparx5_packet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c
index dc7e5ea6ec158..148d431fcde42 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c
@@ -145,9 +145,9 @@ static void sparx5_xtr_grp(struct sparx5 *sparx5, u8 grp, bool byte_swap)
skb_put(skb, byte_cnt - ETH_FCS_LEN);
eth_skb_pad(skb);
skb->protocol = eth_type_trans(skb, netdev);
- netif_rx(skb);
netdev->stats.rx_bytes += skb->len;
netdev->stats.rx_packets++;
+ netif_rx(skb);
}
static int sparx5_inject(struct sparx5 *sparx5,
--
2.34.1
From: Hao Luo <[email protected]>
commit 3c4807322660d4290ac9062c034aed6b87243861 upstream.
We have introduced a new type to make bpf_ret composable, by
reserving high bits to represent flags.
One of the flag is PTR_MAYBE_NULL, which indicates a pointer
may be NULL. When applying this flag to ret_types, it means
the returned value could be a NULL pointer. This patch
switches the qualified arg_types to use this flag.
The ret_types changed in this patch include:
1. RET_PTR_TO_MAP_VALUE_OR_NULL
2. RET_PTR_TO_SOCKET_OR_NULL
3. RET_PTR_TO_TCP_SOCK_OR_NULL
4. RET_PTR_TO_SOCK_COMMON_OR_NULL
5. RET_PTR_TO_ALLOC_MEM_OR_NULL
6. RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL
7. RET_PTR_TO_BTF_ID_OR_NULL
This patch doesn't eliminate the use of these names, instead
it makes them aliases to 'RET_PTR_TO_XXX | PTR_MAYBE_NULL'.
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 19 +++++++++++-------
kernel/bpf/helpers.c | 2 -
kernel/bpf/verifier.c | 52 +++++++++++++++++++++++++-------------------------
3 files changed, 39 insertions(+), 34 deletions(-)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -382,17 +382,22 @@ enum bpf_return_type {
RET_INTEGER, /* function returns integer */
RET_VOID, /* function doesn't return anything */
RET_PTR_TO_MAP_VALUE, /* returns a pointer to map elem value */
- RET_PTR_TO_MAP_VALUE_OR_NULL, /* returns a pointer to map elem value or NULL */
- RET_PTR_TO_SOCKET_OR_NULL, /* returns a pointer to a socket or NULL */
- RET_PTR_TO_TCP_SOCK_OR_NULL, /* returns a pointer to a tcp_sock or NULL */
- RET_PTR_TO_SOCK_COMMON_OR_NULL, /* returns a pointer to a sock_common or NULL */
- RET_PTR_TO_ALLOC_MEM_OR_NULL, /* returns a pointer to dynamically allocated memory or NULL */
- RET_PTR_TO_BTF_ID_OR_NULL, /* returns a pointer to a btf_id or NULL */
- RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL, /* returns a pointer to a valid memory or a btf_id or NULL */
+ RET_PTR_TO_SOCKET, /* returns a pointer to a socket */
+ RET_PTR_TO_TCP_SOCK, /* returns a pointer to a tcp_sock */
+ RET_PTR_TO_SOCK_COMMON, /* returns a pointer to a sock_common */
+ RET_PTR_TO_ALLOC_MEM, /* returns a pointer to dynamically allocated memory */
RET_PTR_TO_MEM_OR_BTF_ID, /* returns a pointer to a valid memory or a btf_id */
RET_PTR_TO_BTF_ID, /* returns a pointer to a btf_id */
__BPF_RET_TYPE_MAX,
+ /* Extended ret_types. */
+ RET_PTR_TO_MAP_VALUE_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_MAP_VALUE,
+ RET_PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCKET,
+ RET_PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_TCP_SOCK,
+ RET_PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCK_COMMON,
+ RET_PTR_TO_ALLOC_MEM_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_ALLOC_MEM,
+ RET_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_BTF_ID,
+
/* This must be the last entry. Its purpose is to ensure the enum is
* wide enough to hold the higher bits reserved for bpf_type_flag.
*/
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -667,7 +667,7 @@ BPF_CALL_2(bpf_per_cpu_ptr, const void *
const struct bpf_func_proto bpf_per_cpu_ptr_proto = {
.func = bpf_per_cpu_ptr,
.gpl_only = false,
- .ret_type = RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL,
+ .ret_type = RET_PTR_TO_MEM_OR_BTF_ID | PTR_MAYBE_NULL,
.arg1_type = ARG_PTR_TO_PERCPU_BTF_ID,
.arg2_type = ARG_ANYTHING,
};
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -6375,6 +6375,7 @@ static int check_helper_call(struct bpf_
int *insn_idx_p)
{
const struct bpf_func_proto *fn = NULL;
+ enum bpf_return_type ret_type;
struct bpf_reg_state *regs;
struct bpf_call_arg_meta meta;
int insn_idx = *insn_idx_p;
@@ -6508,13 +6509,13 @@ static int check_helper_call(struct bpf_
regs[BPF_REG_0].subreg_def = DEF_NOT_SUBREG;
/* update return register (already marked as written above) */
- if (fn->ret_type == RET_INTEGER) {
+ ret_type = fn->ret_type;
+ if (ret_type == RET_INTEGER) {
/* sets type to SCALAR_VALUE */
mark_reg_unknown(env, regs, BPF_REG_0);
- } else if (fn->ret_type == RET_VOID) {
+ } else if (ret_type == RET_VOID) {
regs[BPF_REG_0].type = NOT_INIT;
- } else if (fn->ret_type == RET_PTR_TO_MAP_VALUE_OR_NULL ||
- fn->ret_type == RET_PTR_TO_MAP_VALUE) {
+ } else if (base_type(ret_type) == RET_PTR_TO_MAP_VALUE) {
/* There is no offset yet applied, variable or fixed */
mark_reg_known_zero(env, regs, BPF_REG_0);
/* remember map_ptr, so that check_map_access()
@@ -6528,28 +6529,27 @@ static int check_helper_call(struct bpf_
}
regs[BPF_REG_0].map_ptr = meta.map_ptr;
regs[BPF_REG_0].map_uid = meta.map_uid;
- if (fn->ret_type == RET_PTR_TO_MAP_VALUE) {
+ if (type_may_be_null(ret_type)) {
+ regs[BPF_REG_0].type = PTR_TO_MAP_VALUE_OR_NULL;
+ } else {
regs[BPF_REG_0].type = PTR_TO_MAP_VALUE;
if (map_value_has_spin_lock(meta.map_ptr))
regs[BPF_REG_0].id = ++env->id_gen;
- } else {
- regs[BPF_REG_0].type = PTR_TO_MAP_VALUE_OR_NULL;
}
- } else if (fn->ret_type == RET_PTR_TO_SOCKET_OR_NULL) {
+ } else if (base_type(ret_type) == RET_PTR_TO_SOCKET) {
mark_reg_known_zero(env, regs, BPF_REG_0);
regs[BPF_REG_0].type = PTR_TO_SOCKET_OR_NULL;
- } else if (fn->ret_type == RET_PTR_TO_SOCK_COMMON_OR_NULL) {
+ } else if (base_type(ret_type) == RET_PTR_TO_SOCK_COMMON) {
mark_reg_known_zero(env, regs, BPF_REG_0);
regs[BPF_REG_0].type = PTR_TO_SOCK_COMMON_OR_NULL;
- } else if (fn->ret_type == RET_PTR_TO_TCP_SOCK_OR_NULL) {
+ } else if (base_type(ret_type) == RET_PTR_TO_TCP_SOCK) {
mark_reg_known_zero(env, regs, BPF_REG_0);
regs[BPF_REG_0].type = PTR_TO_TCP_SOCK_OR_NULL;
- } else if (fn->ret_type == RET_PTR_TO_ALLOC_MEM_OR_NULL) {
+ } else if (base_type(ret_type) == RET_PTR_TO_ALLOC_MEM) {
mark_reg_known_zero(env, regs, BPF_REG_0);
regs[BPF_REG_0].type = PTR_TO_MEM_OR_NULL;
regs[BPF_REG_0].mem_size = meta.mem_size;
- } else if (fn->ret_type == RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL ||
- fn->ret_type == RET_PTR_TO_MEM_OR_BTF_ID) {
+ } else if (base_type(ret_type) == RET_PTR_TO_MEM_OR_BTF_ID) {
const struct btf_type *t;
mark_reg_known_zero(env, regs, BPF_REG_0);
@@ -6568,28 +6568,28 @@ static int check_helper_call(struct bpf_
return -EINVAL;
}
regs[BPF_REG_0].type =
- fn->ret_type == RET_PTR_TO_MEM_OR_BTF_ID ?
- PTR_TO_MEM : PTR_TO_MEM_OR_NULL;
+ (ret_type & PTR_MAYBE_NULL) ?
+ PTR_TO_MEM_OR_NULL : PTR_TO_MEM;
regs[BPF_REG_0].mem_size = tsize;
} else {
regs[BPF_REG_0].type =
- fn->ret_type == RET_PTR_TO_MEM_OR_BTF_ID ?
- PTR_TO_BTF_ID : PTR_TO_BTF_ID_OR_NULL;
+ (ret_type & PTR_MAYBE_NULL) ?
+ PTR_TO_BTF_ID_OR_NULL : PTR_TO_BTF_ID;
regs[BPF_REG_0].btf = meta.ret_btf;
regs[BPF_REG_0].btf_id = meta.ret_btf_id;
}
- } else if (fn->ret_type == RET_PTR_TO_BTF_ID_OR_NULL ||
- fn->ret_type == RET_PTR_TO_BTF_ID) {
+ } else if (base_type(ret_type) == RET_PTR_TO_BTF_ID) {
int ret_btf_id;
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = fn->ret_type == RET_PTR_TO_BTF_ID ?
- PTR_TO_BTF_ID :
- PTR_TO_BTF_ID_OR_NULL;
+ regs[BPF_REG_0].type = (ret_type & PTR_MAYBE_NULL) ?
+ PTR_TO_BTF_ID_OR_NULL :
+ PTR_TO_BTF_ID;
ret_btf_id = *fn->ret_btf_id;
if (ret_btf_id == 0) {
- verbose(env, "invalid return type %d of func %s#%d\n",
- fn->ret_type, func_id_name(func_id), func_id);
+ verbose(env, "invalid return type %u of func %s#%d\n",
+ base_type(ret_type), func_id_name(func_id),
+ func_id);
return -EINVAL;
}
/* current BPF helper definitions are only coming from
@@ -6598,8 +6598,8 @@ static int check_helper_call(struct bpf_
regs[BPF_REG_0].btf = btf_vmlinux;
regs[BPF_REG_0].btf_id = ret_btf_id;
} else {
- verbose(env, "unknown return type %d of func %s#%d\n",
- fn->ret_type, func_id_name(func_id), func_id);
+ verbose(env, "unknown return type %u of func %s#%d\n",
+ base_type(ret_type), func_id_name(func_id), func_id);
return -EINVAL;
}
From: Vladimir Oltean <[email protected]>
commit a2614140dc0f467a83aa3bb4b6ee2d6480a76202 upstream.
mv88e6xxx is special among DSA drivers in that it requires the VTU to
contain the VID of the FDB entry it modifies in
mv88e6xxx_port_db_load_purge(), otherwise it will return -EOPNOTSUPP.
Sometimes due to races this is not always satisfied even if external
code does everything right (first deletes the FDB entries, then the
VLAN), because DSA commits to hardware FDB entries asynchronously since
commit c9eb3e0f8701 ("net: dsa: Add support for learning FDB through
notification").
Therefore, the mv88e6xxx driver must close this race condition by
itself, by asking DSA to flush the switchdev workqueue of any FDB
deletions in progress, prior to exiting a VLAN.
Fixes: c9eb3e0f8701 ("net: dsa: Add support for learning FDB through notification")
Reported-by: Rafael Richter <[email protected]>
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/dsa/mv88e6xxx/chip.c | 7 +++++++
include/net/dsa.h | 1 +
net/dsa/dsa.c | 1 +
net/dsa/dsa_priv.h | 1 -
4 files changed, 9 insertions(+), 1 deletion(-)
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2290,6 +2290,13 @@ static int mv88e6xxx_port_vlan_del(struc
if (!mv88e6xxx_max_vid(chip))
return -EOPNOTSUPP;
+ /* The ATU removal procedure needs the FID to be mapped in the VTU,
+ * but FDB deletion runs concurrently with VLAN deletion. Flush the DSA
+ * switchdev workqueue to ensure that all FDB entries are deleted
+ * before we remove the VLAN.
+ */
+ dsa_flush_workqueue();
+
mv88e6xxx_reg_lock(chip);
err = mv88e6xxx_port_get_pvid(chip, port, &pvid);
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -1094,6 +1094,7 @@ void dsa_unregister_switch(struct dsa_sw
int dsa_register_switch(struct dsa_switch *ds);
void dsa_switch_shutdown(struct dsa_switch *ds);
struct dsa_switch *dsa_switch_find(int tree_index, int sw_index);
+void dsa_flush_workqueue(void);
#ifdef CONFIG_PM_SLEEP
int dsa_switch_suspend(struct dsa_switch *ds);
int dsa_switch_resume(struct dsa_switch *ds);
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -349,6 +349,7 @@ void dsa_flush_workqueue(void)
{
flush_workqueue(dsa_owq);
}
+EXPORT_SYMBOL_GPL(dsa_flush_workqueue);
int dsa_devlink_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -170,7 +170,6 @@ void dsa_tag_driver_put(const struct dsa
const struct dsa_device_ops *dsa_find_tagger_by_name(const char *buf);
bool dsa_schedule_work(struct work_struct *work);
-void dsa_flush_workqueue(void);
const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
static inline int dsa_tag_protocol_overhead(const struct dsa_device_ops *ops)
From: Cristian Marussi <[email protected]>
[ Upstream commit ea3396725aa143dd42fe388cb67e44c90d2fb719 ]
Add a dependency on header helpers.h to the main target; while at that add
to helpers.h also a missing include for bool types.
Cc: Aleksa Sarai <[email protected]>
Signed-off-by: Cristian Marussi <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/openat2/Makefile | 2 +-
tools/testing/selftests/openat2/helpers.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/openat2/Makefile b/tools/testing/selftests/openat2/Makefile
index 4b93b1417b862..843ba56d8e49e 100644
--- a/tools/testing/selftests/openat2/Makefile
+++ b/tools/testing/selftests/openat2/Makefile
@@ -5,4 +5,4 @@ TEST_GEN_PROGS := openat2_test resolve_test rename_attack_test
include ../lib.mk
-$(TEST_GEN_PROGS): helpers.c
+$(TEST_GEN_PROGS): helpers.c helpers.h
diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h
index ad5d0ba5b6ce9..7056340b9339e 100644
--- a/tools/testing/selftests/openat2/helpers.h
+++ b/tools/testing/selftests/openat2/helpers.h
@@ -9,6 +9,7 @@
#define _GNU_SOURCE
#include <stdint.h>
+#include <stdbool.h>
#include <errno.h>
#include <linux/types.h>
#include "../kselftest.h"
--
2.34.1
From: david regan <[email protected]>
commit 36415a7964711822e63695ea67fede63979054d9 upstream.
The brcmnand driver contains a bug in which if a page (example 2k byte)
is read from the parallel/ONFI NAND and within that page a subpage (512
byte) has correctable errors which is followed by a subpage with
uncorrectable errors, the page read will return the wrong status of
correctable (as opposed to the actual status of uncorrectable.)
The bug is in function brcmnand_read_by_pio where there is a check for
uncorrectable bits which will be preempted if a previous status for
correctable bits is detected.
The fix is to stop checking for bad bits only if we already have a bad
bits status.
Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: david regan <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/trinity-478e0c09-9134-40e8-8f8c-31c371225eda-1643237024774@3c-app-mailcom-lxa02
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2106,7 +2106,7 @@ static int brcmnand_read_by_pio(struct m
mtd->oobsize / trans,
host->hwcfg.sector_size_1k);
- if (!ret) {
+ if (ret != -EBADMSG) {
*err_addr = brcmnand_get_uncorrecc_addr(ctrl);
if (*err_addr)
From: Cristian Marussi <[email protected]>
[ Upstream commit ac9e0a250bb155078601a5b999aab05f2a04d1ab ]
Skip testcases that fail since the requested valid flags combination is not
supported by the underlying filesystem.
Cc: Aleksa Sarai <[email protected]>
Signed-off-by: Cristian Marussi <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/openat2/openat2_test.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
index 1bddbe934204c..7fb902099de45 100644
--- a/tools/testing/selftests/openat2/openat2_test.c
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -259,6 +259,16 @@ void test_openat2_flags(void)
unlink(path);
fd = sys_openat2(AT_FDCWD, path, &test->how);
+ if (fd < 0 && fd == -EOPNOTSUPP) {
+ /*
+ * Skip the testcase if it failed because not supported
+ * by FS. (e.g. a valid O_TMPFILE combination on NFS)
+ */
+ ksft_test_result_skip("openat2 with %s fails with %d (%s)\n",
+ test->name, fd, strerror(-fd));
+ goto next;
+ }
+
if (test->err >= 0)
failed = (fd < 0);
else
@@ -303,7 +313,7 @@ void test_openat2_flags(void)
else
resultfn("openat2 with %s fails with %d (%s)\n",
test->name, test->err, strerror(-test->err));
-
+next:
free(fdpath);
fflush(stdout);
}
--
2.34.1
From: John David Anglin <[email protected]>
commit b7d6f44a0fa716a82969725516dc0b16bc7cd514 upstream.
Rolf Eike Beer reported the following bug:
[1274934.746891] Bad Address (null pointer deref?): Code=15 (Data TLB miss fault) at addr 0000004140000018
[1274934.746891] CPU: 3 PID: 5549 Comm: cmake Not tainted 5.15.4-gentoo-parisc64 #4
[1274934.746891] Hardware name: 9000/785/C8000
[1274934.746891]
[1274934.746891] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[1274934.746891] PSW: 00001000000001001111111000001110 Not tainted
[1274934.746891] r00-03 000000ff0804fe0e 0000000040bc9bc0 00000000406760e4 0000004140000000
[1274934.746891] r04-07 0000000040b693c0 0000004140000000 000000004a2b08b0 0000000000000001
[1274934.746891] r08-11 0000000041f98810 0000000000000000 000000004a0a7000 0000000000000001
[1274934.746891] r12-15 0000000040bddbc0 0000000040c0cbc0 0000000040bddbc0 0000000040bddbc0
[1274934.746891] r16-19 0000000040bde3c0 0000000040bddbc0 0000000040bde3c0 0000000000000007
[1274934.746891] r20-23 0000000000000006 000000004a368950 0000000000000000 0000000000000001
[1274934.746891] r24-27 0000000000001fff 000000000800000e 000000004a1710f0 0000000040b693c0
[1274934.746891] r28-31 0000000000000001 0000000041f988b0 0000000041f98840 000000004a171118
[1274934.746891] sr00-03 00000000066e5800 0000000000000000 0000000000000000 00000000066e5800
[1274934.746891] sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[1274934.746891]
[1274934.746891] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406760e8 00000000406760ec
[1274934.746891] IIR: 48780030 ISR: 0000000000000000 IOR: 0000004140000018
[1274934.746891] CPU: 3 CR30: 00000040e3a9c000 CR31: ffffffffffffffff
[1274934.746891] ORIG_R28: 0000000040acdd58
[1274934.746891] IAOQ[0]: sba_unmap_sg+0xb0/0x118
[1274934.746891] IAOQ[1]: sba_unmap_sg+0xb4/0x118
[1274934.746891] RP(r2): sba_unmap_sg+0xac/0x118
[1274934.746891] Backtrace:
[1274934.746891] [<00000000402740cc>] dma_unmap_sg_attrs+0x6c/0x70
[1274934.746891] [<000000004074d6bc>] scsi_dma_unmap+0x54/0x60
[1274934.746891] [<00000000407a3488>] mptscsih_io_done+0x150/0xd70
[1274934.746891] [<0000000040798600>] mpt_interrupt+0x168/0xa68
[1274934.746891] [<0000000040255a48>] __handle_irq_event_percpu+0xc8/0x278
[1274934.746891] [<0000000040255c34>] handle_irq_event_percpu+0x3c/0xd8
[1274934.746891] [<000000004025ecb4>] handle_percpu_irq+0xb4/0xf0
[1274934.746891] [<00000000402548e0>] generic_handle_irq+0x50/0x70
[1274934.746891] [<000000004019a254>] call_on_stack+0x18/0x24
[1274934.746891]
[1274934.746891] Kernel panic - not syncing: Bad Address (null pointer deref?)
The bug is caused by overrunning the sglist and incorrectly testing
sg_dma_len(sglist) before nents. Normally this doesn't cause a crash,
but in this case sglist crossed a page boundary. This occurs in the
following code:
while (sg_dma_len(sglist) && nents--) {
The fix is simply to test nents first and move the decrement of nents
into the loop.
Reported-by: Rolf Eike Beer <[email protected]>
Signed-off-by: John David Anglin <[email protected]>
Cc: [email protected]
Signed-off-by: Helge Deller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/parisc/sba_iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1047,7 +1047,7 @@ sba_unmap_sg(struct device *dev, struct
spin_unlock_irqrestore(&ioc->res_lock, flags);
#endif
- while (sg_dma_len(sglist) && nents--) {
+ while (nents && sg_dma_len(sglist)) {
sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
direction, 0);
@@ -1056,6 +1056,7 @@ sba_unmap_sg(struct device *dev, struct
ioc->usingle_calls--; /* kluge since call is unmap_sg() */
#endif
++sglist;
+ nents--;
}
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
From: Hao Luo <[email protected]>
commit 216e3cd2f28dbbf1fe86848e0e29e6693b9f0a20 upstream.
Some helper functions may modify its arguments, for example,
bpf_d_path, bpf_get_stack etc. Previously, their argument types
were marked as ARG_PTR_TO_MEM, which is compatible with read-only
mem types, such as PTR_TO_RDONLY_BUF. Therefore it's legitimate,
but technically incorrect, to modify a read-only memory by passing
it into one of such helper functions.
This patch tags the bpf_args compatible with immutable memory with
MEM_RDONLY flag. The arguments that don't have this flag will be
only compatible with mutable memory types, preventing the helper
from modifying a read-only memory. The bpf_args that have
MEM_RDONLY are compatible with both mutable memory and immutable
memory.
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 4 ++
kernel/bpf/btf.c | 2 -
kernel/bpf/cgroup.c | 2 -
kernel/bpf/helpers.c | 8 ++---
kernel/bpf/ringbuf.c | 2 -
kernel/bpf/syscall.c | 2 -
kernel/bpf/verifier.c | 20 ++++++++++++--
kernel/trace/bpf_trace.c | 26 +++++++++----------
net/core/filter.c | 64 +++++++++++++++++++++++------------------------
9 files changed, 73 insertions(+), 57 deletions(-)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -311,7 +311,9 @@ enum bpf_type_flag {
/* PTR may be NULL. */
PTR_MAYBE_NULL = BIT(0 + BPF_BASE_TYPE_BITS),
- /* MEM is read-only. */
+ /* MEM is read-only. When applied on bpf_arg, it indicates the arg is
+ * compatible with both mutable and immutable memory.
+ */
MEM_RDONLY = BIT(1 + BPF_BASE_TYPE_BITS),
__BPF_TYPE_LAST_FLAG = MEM_RDONLY,
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6337,7 +6337,7 @@ const struct bpf_func_proto bpf_btf_find
.func = bpf_btf_find_by_name_kind,
.gpl_only = false,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM,
+ .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE,
.arg3_type = ARG_ANYTHING,
.arg4_type = ARG_ANYTHING,
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -1789,7 +1789,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
};
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -530,7 +530,7 @@ const struct bpf_func_proto bpf_strtol_p
.func = bpf_strtol,
.gpl_only = false,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM,
+ .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE,
.arg3_type = ARG_ANYTHING,
.arg4_type = ARG_PTR_TO_LONG,
@@ -558,7 +558,7 @@ const struct bpf_func_proto bpf_strtoul_
.func = bpf_strtoul,
.gpl_only = false,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM,
+ .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE,
.arg3_type = ARG_ANYTHING,
.arg4_type = ARG_PTR_TO_LONG,
@@ -630,7 +630,7 @@ const struct bpf_func_proto bpf_event_ou
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -1011,7 +1011,7 @@ const struct bpf_func_proto bpf_snprintf
.arg1_type = ARG_PTR_TO_MEM_OR_NULL,
.arg2_type = ARG_CONST_SIZE_OR_ZERO,
.arg3_type = ARG_PTR_TO_CONST_STR,
- .arg4_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg4_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -444,7 +444,7 @@ const struct bpf_func_proto bpf_ringbuf_
.func = bpf_ringbuf_output,
.ret_type = RET_INTEGER,
.arg1_type = ARG_CONST_MAP_PTR,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
};
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -4772,7 +4772,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_ANYTHING,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
};
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5060,7 +5060,6 @@ static const struct bpf_reg_types mem_ty
PTR_TO_MAP_VALUE,
PTR_TO_MEM,
PTR_TO_BUF,
- PTR_TO_BUF | MEM_RDONLY,
},
};
@@ -5130,6 +5129,21 @@ static int check_reg_type(struct bpf_ver
return -EFAULT;
}
+ /* ARG_PTR_TO_MEM + RDONLY is compatible with PTR_TO_MEM and PTR_TO_MEM + RDONLY,
+ * but ARG_PTR_TO_MEM is compatible only with PTR_TO_MEM and NOT with PTR_TO_MEM + RDONLY
+ *
+ * Same for MAYBE_NULL:
+ *
+ * ARG_PTR_TO_MEM + MAYBE_NULL is compatible with PTR_TO_MEM and PTR_TO_MEM + MAYBE_NULL,
+ * but ARG_PTR_TO_MEM is compatible only with PTR_TO_MEM but NOT with PTR_TO_MEM + MAYBE_NULL
+ *
+ * Therefore we fold these flags depending on the arg_type before comparison.
+ */
+ if (arg_type & MEM_RDONLY)
+ type &= ~MEM_RDONLY;
+ if (arg_type & PTR_MAYBE_NULL)
+ type &= ~PTR_MAYBE_NULL;
+
for (i = 0; i < ARRAY_SIZE(compatible->types); i++) {
expected = compatible->types[i];
if (expected == NOT_INIT)
@@ -5139,14 +5153,14 @@ static int check_reg_type(struct bpf_ver
goto found;
}
- verbose(env, "R%d type=%s expected=", regno, reg_type_str(env, type));
+ verbose(env, "R%d type=%s expected=", regno, reg_type_str(env, reg->type));
for (j = 0; j + 1 < i; j++)
verbose(env, "%s, ", reg_type_str(env, compatible->types[j]));
verbose(env, "%s\n", reg_type_str(env, compatible->types[j]));
return -EACCES;
found:
- if (type == PTR_TO_BTF_ID) {
+ if (reg->type == PTR_TO_BTF_ID) {
if (!arg_btf_id) {
if (!compatible->btf_id) {
verbose(env, "verifier internal error: missing arg compatible BTF ID\n");
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -345,7 +345,7 @@ static const struct bpf_func_proto bpf_p
.gpl_only = true,
.ret_type = RET_INTEGER,
.arg1_type = ARG_ANYTHING,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
};
@@ -394,7 +394,7 @@ static const struct bpf_func_proto bpf_t
.func = bpf_trace_printk,
.gpl_only = true,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM,
+ .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE,
};
@@ -450,9 +450,9 @@ static const struct bpf_func_proto bpf_t
.func = bpf_trace_vprintk,
.gpl_only = true,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM,
+ .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE,
- .arg3_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg3_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -492,9 +492,9 @@ static const struct bpf_func_proto bpf_s
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_BTF_ID,
.arg1_btf_id = &btf_seq_file_ids[0],
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
- .arg4_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg4_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -509,7 +509,7 @@ static const struct bpf_func_proto bpf_s
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_BTF_ID,
.arg1_btf_id = &btf_seq_file_ids[0],
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -533,7 +533,7 @@ static const struct bpf_func_proto bpf_s
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_BTF_ID,
.arg1_btf_id = &btf_seq_file_ids[0],
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
};
@@ -694,7 +694,7 @@ static const struct bpf_func_proto bpf_p
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -1004,7 +1004,7 @@ const struct bpf_func_proto bpf_snprintf
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_MEM,
.arg2_type = ARG_CONST_SIZE,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE,
.arg5_type = ARG_ANYTHING,
};
@@ -1285,7 +1285,7 @@ static const struct bpf_func_proto bpf_p
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -1507,7 +1507,7 @@ static const struct bpf_func_proto bpf_p
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -1561,7 +1561,7 @@ static const struct bpf_func_proto bpf_g
.gpl_only = true,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
};
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1713,7 +1713,7 @@ static const struct bpf_func_proto bpf_s
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE,
.arg5_type = ARG_ANYTHING,
};
@@ -2018,9 +2018,9 @@ static const struct bpf_func_proto bpf_c
.gpl_only = false,
.pkt_access = true,
.ret_type = RET_INTEGER,
- .arg1_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg1_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg2_type = ARG_CONST_SIZE_OR_ZERO,
- .arg3_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg3_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE_OR_ZERO,
.arg5_type = ARG_ANYTHING,
};
@@ -2541,7 +2541,7 @@ static const struct bpf_func_proto bpf_r
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_ANYTHING,
- .arg2_type = ARG_PTR_TO_MEM_OR_NULL,
+ .arg2_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
};
@@ -4174,7 +4174,7 @@ static const struct bpf_func_proto bpf_s
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -4188,7 +4188,7 @@ const struct bpf_func_proto bpf_skb_outp
.arg1_btf_id = &bpf_skb_output_btf_ids[0],
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -4371,7 +4371,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
};
@@ -4397,7 +4397,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
};
@@ -4567,7 +4567,7 @@ static const struct bpf_func_proto bpf_x
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -4581,7 +4581,7 @@ const struct bpf_func_proto bpf_xdp_outp
.arg1_btf_id = &bpf_xdp_output_btf_ids[0],
.arg2_type = ARG_CONST_MAP_PTR,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE_OR_ZERO,
};
@@ -5069,7 +5069,7 @@ const struct bpf_func_proto bpf_sk_setso
.arg1_type = ARG_PTR_TO_BTF_ID_SOCK_COMMON,
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE,
};
@@ -5103,7 +5103,7 @@ static const struct bpf_func_proto bpf_s
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE,
};
@@ -5137,7 +5137,7 @@ static const struct bpf_func_proto bpf_s
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_ANYTHING,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE,
};
@@ -5312,7 +5312,7 @@ static const struct bpf_func_proto bpf_b
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
};
@@ -5900,7 +5900,7 @@ static const struct bpf_func_proto bpf_l
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE
};
@@ -5910,7 +5910,7 @@ static const struct bpf_func_proto bpf_l
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE
};
@@ -5953,7 +5953,7 @@ static const struct bpf_func_proto bpf_l
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE
};
@@ -6041,7 +6041,7 @@ static const struct bpf_func_proto bpf_l
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_ANYTHING,
- .arg3_type = ARG_PTR_TO_MEM,
+ .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg4_type = ARG_CONST_SIZE
};
@@ -6266,7 +6266,7 @@ static const struct bpf_func_proto bpf_s
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6285,7 +6285,7 @@ static const struct bpf_func_proto bpf_s
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6304,7 +6304,7 @@ static const struct bpf_func_proto bpf_s
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6341,7 +6341,7 @@ static const struct bpf_func_proto bpf_x
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6364,7 +6364,7 @@ static const struct bpf_func_proto bpf_x
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6387,7 +6387,7 @@ static const struct bpf_func_proto bpf_x
.pkt_access = true,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6406,7 +6406,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6425,7 +6425,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6444,7 +6444,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
@@ -6757,9 +6757,9 @@ static const struct bpf_func_proto bpf_t
.pkt_access = true,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_BTF_ID_SOCK_COMMON,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE,
};
@@ -6826,9 +6826,9 @@ static const struct bpf_func_proto bpf_t
.pkt_access = true,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_BTF_ID_SOCK_COMMON,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
- .arg4_type = ARG_PTR_TO_MEM,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg5_type = ARG_CONST_SIZE,
};
@@ -7057,7 +7057,7 @@ static const struct bpf_func_proto bpf_s
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
- .arg2_type = ARG_PTR_TO_MEM,
+ .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
.arg3_type = ARG_CONST_SIZE,
.arg4_type = ARG_ANYTHING,
};
From: Qu Wenruo <[email protected]>
commit ea0eba69a2a8125229b1b6011644598039bc53aa upstream.
There is a user report about "btrfs filesystem defrag" causing 120s
timeout problem.
For btrfs_defrag_file() it will iterate all file extents if called from
defrag ioctl, thus it can take a long time.
There is no reason not to release the CPU during such a long operation.
Add cond_resched() after defragged one cluster.
CC: [email protected] # 5.16
Link: https://lore.kernel.org/linux-btrfs/[email protected]
Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/btrfs/ioctl.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1603,6 +1603,7 @@ int btrfs_defrag_file(struct inode *inod
ret = 0;
break;
}
+ cond_resched();
}
if (ra_allocated)
From: Woody Suwalski <[email protected]>
commit bfe55a1f7fd6bfede16078bf04c6250fbca11588 upstream.
Add and ACPI idle power level limit for 32-bit ThinkPad T40.
There is a regression on T40 introduced by commit d6b88ce2, starting
with kernel 5.16:
commit d6b88ce2eb9d2698eb24451eb92c0a1649b17bb1
Author: Richard Gong <[email protected]>
Date: Wed Sep 22 08:31:16 2021 -0500
ACPI: processor idle: Allow playing dead in C3 state
The above patch is trying to enter C3 state during init, what is causing
a T40 system freeze. I have not found a similar issue on any other of my
32-bit machines.
The fix is to add another exception to the processor_power_dmi_table[] list.
As a result the dmesg shows as expected:
[2.155398] ACPI: IBM ThinkPad T40 detected - limiting to C2 max_cstate. Override with "processor.max_cstate=9"
[2.155404] ACPI: processor limited to max C-state 2
The fix is trivial and affects only vintage T40 systems.
Fixes: d6b88ce2eb9d ("CPI: processor idle: Allow playing dead in C3 state")
Signed-off-by: Woody Suwalski <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Cc: 5.16+ <[email protected]> # 5.16+
[ rjw: New subject ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/processor_idle.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -95,6 +95,11 @@ static const struct dmi_system_id proces
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
(void *)1},
+ /* T40 can not handle C3 idle state */
+ { set_max_cstate, "IBM ThinkPad T40", {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "23737CU")},
+ (void *)2},
{},
};
From: Johannes Berg <[email protected]>
commit bea2662e7818e15d7607d17d57912ac984275d94 upstream.
If no firmware was present at all (or, presumably, all of the
firmware files failed to parse), we end up unbinding by calling
device_release_driver(), which calls remove(), which then in
iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However
the new code I added will still erroneously access it after it
was freed.
Set 'failure=false' in this case to avoid the access, all data
was already freed anyway.
Cc: [email protected]
Reported-by: Stefan Agner <[email protected]>
Reported-by: Wolfgang Walter <[email protected]>
Reported-by: Jason Self <[email protected]>
Reported-by: Dominik Behr <[email protected]>
Reported-by: Marek Marczykowski-Górecki <[email protected]>
Fixes: ab07506b0454 ("iwlwifi: fix leaks/bad data after failed firmware load")
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/20220208114728.e6b514cf4c85.Iffb575ca2a623d7859b542c33b2a507d01554251@changeid
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1656,6 +1656,8 @@ static void iwl_req_fw_callback(const st
out_unbind:
complete(&drv->request_firmware_complete);
device_release_driver(drv->trans->dev);
+ /* drv has just been freed by the release */
+ failure = false;
free:
if (failure)
iwl_dealloc_ucode(drv);
From: Gatis Peisenieks <[email protected]>
commit bf8e59fd315f304eb538546e35de6dc603e4709f upstream.
If NIC had packets in tx queue at the moment link down event
happened, it could result in tx timeout when link got back up.
Since device has more than one tx queue we need to reset them
accordingly.
Fixes: 057f4af2b171 ("atl1c: add 4 RX/TX queue support for Mikrotik 10/25G NIC")
Signed-off-by: Gatis Peisenieks <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -900,7 +900,7 @@ static void atl1c_clean_tx_ring(struct a
atl1c_clean_buffer(pdev, buffer_info);
}
- netdev_reset_queue(adapter->netdev);
+ netdev_tx_reset_queue(netdev_get_tx_queue(adapter->netdev, queue));
/* Zero out Tx-buffers */
memset(tpd_ring->desc, 0, sizeof(struct atl1c_tpd_desc) *
From: Axel Rasmussen <[email protected]>
[ Upstream commit 4cbd93c3c110447adc66cb67c08af21f939ae2d7 ]
When running the pidfd_fdinfo_test on arm64, it fails for me. After some
digging, the reason is that the child exits due to SIGBUS, because it
overflows the 1024 byte stack we've reserved for it.
To fix the issue, increase the stack size to 8192 bytes (this number is
somewhat arbitrary, and was arrived at through experimentation -- I kept
doubling until the failure no longer occurred).
Also, let's make the issue easier to debug. wait_for_pid() returns an
ambiguous value: it may return -1 in all of these cases:
1. waitpid() itself returned -1
2. waitpid() returned success, but we found !WIFEXITED(status).
3. The child process exited, but it did so with a -1 exit code.
There's no way for the caller to tell the difference. So, at least log
which occurred, so the test runner can debug things.
While debugging this, I found that we had !WIFEXITED(), because the
child exited due to a signal. This seems like a reasonably common case,
so also print out whether or not we have WIFSIGNALED(), and the
associated WTERMSIG() (if any). This lets us see the SIGBUS I'm fixing
clearly when it occurs.
Finally, I'm suspicious of allocating the child's stack on our stack.
man clone(2) suggests that the correct way to do this is with mmap(),
and in particular by setting MAP_STACK. So, switch to doing it that way
instead.
Signed-off-by: Axel Rasmussen <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/pidfd/pidfd.h | 13 ++++++++---
.../selftests/pidfd/pidfd_fdinfo_test.c | 22 +++++++++++++++----
2 files changed, 28 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
index 01f8d3c0cf2cb..6922d6417e1cf 100644
--- a/tools/testing/selftests/pidfd/pidfd.h
+++ b/tools/testing/selftests/pidfd/pidfd.h
@@ -68,7 +68,7 @@
#define PIDFD_SKIP 3
#define PIDFD_XFAIL 4
-int wait_for_pid(pid_t pid)
+static inline int wait_for_pid(pid_t pid)
{
int status, ret;
@@ -78,13 +78,20 @@ int wait_for_pid(pid_t pid)
if (errno == EINTR)
goto again;
+ ksft_print_msg("waitpid returned -1, errno=%d\n", errno);
return -1;
}
- if (!WIFEXITED(status))
+ if (!WIFEXITED(status)) {
+ ksft_print_msg(
+ "waitpid !WIFEXITED, WIFSIGNALED=%d, WTERMSIG=%d\n",
+ WIFSIGNALED(status), WTERMSIG(status));
return -1;
+ }
- return WEXITSTATUS(status);
+ ret = WEXITSTATUS(status);
+ ksft_print_msg("waitpid WEXITSTATUS=%d\n", ret);
+ return ret;
}
static inline int sys_pidfd_open(pid_t pid, unsigned int flags)
diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
index 22558524f71c3..3fd8e903118f5 100644
--- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
@@ -12,6 +12,7 @@
#include <string.h>
#include <syscall.h>
#include <sys/wait.h>
+#include <sys/mman.h>
#include "pidfd.h"
#include "../kselftest.h"
@@ -80,7 +81,10 @@ static inline int error_check(struct error *err, const char *test_name)
return err->code;
}
+#define CHILD_STACK_SIZE 8192
+
struct child {
+ char *stack;
pid_t pid;
int fd;
};
@@ -89,17 +93,22 @@ static struct child clone_newns(int (*fn)(void *), void *args,
struct error *err)
{
static int flags = CLONE_PIDFD | CLONE_NEWPID | CLONE_NEWNS | SIGCHLD;
- size_t stack_size = 1024;
- char *stack[1024] = { 0 };
struct child ret;
if (!(flags & CLONE_NEWUSER) && geteuid() != 0)
flags |= CLONE_NEWUSER;
+ ret.stack = mmap(NULL, CHILD_STACK_SIZE, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+ if (ret.stack == MAP_FAILED) {
+ error_set(err, -1, "mmap of stack failed (errno %d)", errno);
+ return ret;
+ }
+
#ifdef __ia64__
- ret.pid = __clone2(fn, stack, stack_size, flags, args, &ret.fd);
+ ret.pid = __clone2(fn, ret.stack, CHILD_STACK_SIZE, flags, args, &ret.fd);
#else
- ret.pid = clone(fn, stack + stack_size, flags, args, &ret.fd);
+ ret.pid = clone(fn, ret.stack + CHILD_STACK_SIZE, flags, args, &ret.fd);
#endif
if (ret.pid < 0) {
@@ -129,6 +138,11 @@ static inline int child_join(struct child *child, struct error *err)
else if (r > 0)
error_set(err, r, "child %d reported: %d", child->pid, r);
+ if (munmap(child->stack, CHILD_STACK_SIZE)) {
+ error_set(err, -1, "munmap of child stack failed (errno %d)", errno);
+ r = -1;
+ }
+
return r;
}
--
2.34.1
From: Linus Torvalds <[email protected]>
commit 80d47f5de5e311cbc0d01ebb6ee684e8f4c196c6 upstream.
Oded Gabbay reports that enabling NUMA balancing causes corruption with
his Gaudi accelerator test load:
"All the details are in the bug, but the bottom line is that somehow,
this patch causes corruption when the numa balancing feature is
enabled AND we don't use process affinity AND we use GUP to pin pages
so our accelerator can DMA to/from system memory.
Either disabling numa balancing, using process affinity to bind to
specific numa-node or reverting this patch causes the bug to
disappear"
and Oded bisected the issue to commit 09854ba94c6a ("mm: do_wp_page()
simplification").
Now, the NUMA balancing shouldn't actually be changing the writability
of a page, and as such shouldn't matter for COW. But it appears it
does. Suspicious.
However, regardless of that, the condition for enabling NUMA faults in
change_pte_range() is nonsensical. It uses "page_mapcount(page)" to
decide if a COW page should be NUMA-protected or not, and that makes
absolutely no sense.
The number of mappings a page has is irrelevant: not only does GUP get a
reference to a page as in Oded's case, but the other mappings migth be
paged out and the only reference to them would be in the page count.
Since we should never try to NUMA-balance a page that we can't move
anyway due to other references, just fix the code to use 'page_count()'.
Oded confirms that that fixes his issue.
Now, this does imply that something in NUMA balancing ends up changing
page protections (other than the obvious one of making the page
inaccessible to get the NUMA faulting information). Otherwise the COW
simplification wouldn't matter - since doing the GUP on the page would
make sure it's writable.
The cause of that permission change would be good to figure out too,
since it clearly results in spurious COW events - but fixing the
nonsensical test that just happened to work before is obviously the
CorrectThing(tm) to do regardless.
Fixes: 09854ba94c6a ("mm: do_wp_page() simplification")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215616
Link: https://lore.kernel.org/all/CAFCwf10eNmwq2wD71xjUhqkvv5+_pJMR1nPug2RqNDcFT4H86Q@mail.gmail.com/
Reported-and-tested-by: Oded Gabbay <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Peter Xu <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
mm/mprotect.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -94,7 +94,7 @@ static unsigned long change_pte_range(st
/* Also skip shared copy-on-write pages */
if (is_cow_mapping(vma->vm_flags) &&
- page_mapcount(page) != 1)
+ page_count(page) != 1)
continue;
/*
From: John David Anglin <[email protected]>
commit d7da660cab47183cded65e11b64497d0f56c6edf upstream.
This patch implements the same bug fix to ccio-dma.c as to sba_iommu.c.
It ensures that only the allocated entries of the sglist are accessed.
Signed-off-by: John David Anglin <[email protected]>
Cc: [email protected]
Signed-off-by: Helge Deller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/parisc/ccio-dma.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1003,7 +1003,7 @@ ccio_unmap_sg(struct device *dev, struct
ioc->usg_calls++;
#endif
- while(sg_dma_len(sglist) && nents--) {
+ while (nents && sg_dma_len(sglist)) {
#ifdef CCIO_COLLECT_STATS
ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
@@ -1011,6 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct
ccio_unmap_page(dev, sg_dma_address(sglist),
sg_dma_len(sglist), direction, 0);
++sglist;
+ nents--;
}
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
From: John Garry <[email protected]>
[ Upstream commit df7abcaa1246e2537ab4016077b5443bb3c09378 ]
Currently a use-after-free may occur if a sas_task is aborted by the upper
layer before we handle the I/O completion in mpi_ssp_completion() or
mpi_sata_completion().
In this case, the following are the two steps in handling those I/O
completions:
- Call complete() to inform the upper layer handler of completion of
the I/O.
- Release driver resources associated with the sas_task in
pm8001_ccb_task_free() call.
When complete() is called, the upper layer may free the sas_task. As such,
we should not touch the associated sas_task afterwards, but we do so in the
pm8001_ccb_task_free() call.
Fix by swapping the complete() and pm8001_ccb_task_free() calls ordering.
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Damien Le Moal <[email protected]>
Acked-by: Jack Wang <[email protected]>
Signed-off-by: John Garry <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/scsi/pm8001/pm80xx_hwi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 885bc9e71ff64..ca4820d99dc70 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2184,9 +2184,9 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_dbg(pm8001_ha, FAIL,
"task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
t, status, ts->resp, ts->stat);
+ pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
if (t->slow_task)
complete(&t->slow_task->completion);
- pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
} else {
spin_unlock_irqrestore(&t->task_state_lock, flags);
pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
@@ -2801,9 +2801,9 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
pm8001_dbg(pm8001_ha, FAIL,
"task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
t, status, ts->resp, ts->stat);
+ pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
if (t->slow_task)
complete(&t->slow_task->completion);
- pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
} else {
spin_unlock_irqrestore(&t->task_state_lock, flags);
spin_unlock_irqrestore(&circularQ->oq_lock,
--
2.34.1
From: Trond Myklebust <[email protected]>
commit 9d047bf68fe8cdb4086deaf4edd119731a9481ed upstream.
In nfs4_update_changeattr_locked(), we don't need to set the
NFS_INO_REVAL_PAGECACHE flag, because we already know the value of the
change attribute, and we're already flagging the size. In fact, this
forces us to revalidate the change attribute a second time for no good
reason.
This extra flag appears to have been introduced as part of the xattr
feature, when update_changeattr_locked() was converted for use by the
xattr code.
Fixes: 1b523ca972ed ("nfs: modify update_changeattr to deal with regular files")
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfs/nfs4proc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1233,8 +1233,7 @@ nfs4_update_changeattr_locked(struct ino
NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL |
NFS_INO_INVALID_SIZE | NFS_INO_INVALID_OTHER |
NFS_INO_INVALID_BLOCKS | NFS_INO_INVALID_NLINK |
- NFS_INO_INVALID_MODE | NFS_INO_INVALID_XATTR |
- NFS_INO_REVAL_PAGECACHE;
+ NFS_INO_INVALID_MODE | NFS_INO_INVALID_XATTR;
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
}
nfsi->attrtimeo_timestamp = jiffies;
From: Christian Eggers <[email protected]>
commit 9161f365c91614e5a3f5c6dcc44c3b1b33bc59c0 upstream.
If gpmi_nfc_apply_timings() fails, the PM runtime usage counter must be
dropped.
Reported-by: Pavel Machek <[email protected]>
Fixes: f53d4c109a66 ("mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings")
Signed-off-by: Christian Eggers <[email protected]>
Cc: [email protected]
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2291,7 +2291,7 @@ static int gpmi_nfc_exec_op(struct nand_
this->hw.must_apply_timings = false;
ret = gpmi_nfc_apply_timings(this);
if (ret)
- return ret;
+ goto out_pm;
}
dev_dbg(this->dev, "%s: %d instructions\n", __func__, op->ninstrs);
@@ -2420,6 +2420,7 @@ unmap:
this->bch = false;
+out_pm:
pm_runtime_mark_last_busy(this->dev);
pm_runtime_put_autosuspend(this->dev);
From: Christian Hewitt <[email protected]>
[ Upstream commit f26573e2bc9dfd551a0d5c6971f18cc546543312 ]
The BL32/TEE reserved-memory region is now inherited from the common
family dtsi (meson-g12-common) so we can drop it from board files.
Signed-off-by: Christian Hewitt <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts | 8 --------
arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts | 8 --------
2 files changed, 16 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
index d8838dde0f0f4..4fb31c2ba31c4 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
@@ -157,14 +157,6 @@
regulator-always-on;
};
- reserved-memory {
- /* TEE Reserved Memory */
- bl32_reserved: bl32@5000000 {
- reg = <0x0 0x05300000 0x0 0x2000000>;
- no-map;
- };
- };
-
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
index 427475846fc70..a5d79f2f7c196 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
@@ -203,14 +203,6 @@
regulator-always-on;
};
- reserved-memory {
- /* TEE Reserved Memory */
- bl32_reserved: bl32@5000000 {
- reg = <0x0 0x05300000 0x0 0x2000000>;
- no-map;
- };
- };
-
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
--
2.34.1
From: Roman Li <[email protected]>
[ Upstream commit 328e34a5ad227399391891d454043e5d73e598d2 ]
[Why]
pflip interrupt order are mapped 1 to 1 to otg id.
e.g. if irq_src=26 corresponds to otg0 then 27->otg1, 28->otg2...
Linux DM registers pflip interrupts per number of crtcs.
In fused pipe case crtc numbers can be less than otg id.
e.g. if one pipe out of 3(otg#0-2) is fused adev->mode_info.num_crtc=2
so DM only registers irq_src 26,27.
This is a bug since if pipe#2 remains unfused DM never gets
otg2 pflip interrupt (irq_src=28)
That may results in gfx failure due to pflip timeout.
[How]
Register pflip interrupts per max num of otg instead of num_crtc
Signed-off-by: Roman Li <[email protected]>
Reviewed-by: Nicholas Kazlauskas <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index efcb25ef1809a..0117b00b4ed83 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3629,7 +3629,7 @@ static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
/* Use GRPH_PFLIP interrupt */
for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
- i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1;
+ i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + dc->caps.max_otg_num - 1;
i++) {
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
if (r) {
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f0fbd8ad56229..e890e063cde31 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1237,6 +1237,8 @@ struct dc *dc_create(const struct dc_init_data *init_params)
dc->caps.max_dp_protocol_version = DP_VERSION_1_4;
+ dc->caps.max_otg_num = dc->res_pool->res_cap->num_timing_generator;
+
if (dc->res_pool->dmcu != NULL)
dc->versions.dmcu_version = dc->res_pool->dmcu->dmcu_version;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 618e7989176fc..14864763a1881 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -190,6 +190,7 @@ struct dc_caps {
#endif
bool vbios_lttpr_aware;
bool vbios_lttpr_enable;
+ uint32_t max_otg_num;
};
struct dc_bug_wa {
--
2.34.1
From: Helge Deller <[email protected]>
commit b160628e9ebcdc85d0db9d7f423c26b3c7c179d0 upstream.
It happens quite often that people use the wrong compiler to build the
kernel:
make ARCH=parisc -> builds the 32-bit kernel
make ARCH=parisc64 -> builds the 64-bit kernel
This patch adds a sanity check which errors out with an instruction how
use the correct ARCH= option.
Signed-off-by: Helge Deller <[email protected]>
Cc: [email protected] # v5.15+
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/parisc/include/asm/bitops.h | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -12,6 +12,14 @@
#include <asm/barrier.h>
#include <linux/atomic.h>
+/* compiler build environment sanity checks: */
+#if !defined(CONFIG_64BIT) && defined(__LP64__)
+#error "Please use 'ARCH=parisc' to build the 32-bit kernel."
+#endif
+#if defined(CONFIG_64BIT) && !defined(__LP64__)
+#error "Please use 'ARCH=parisc64' to build the 64-bit kernel."
+#endif
+
/* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion
* on use of volatile and __*_bit() (set/clear/change):
* *_bit() want use of volatile.
From: Maxim Levitsky <[email protected]>
commit 759cbd59674a6c0aec616a3f4f0740ebd3f5fbef upstream.
While RSM induced VM entries are not full VM entries,
they still need to be followed by actual VM entry to complete it,
unlike setting the nested state.
This patch fixes boot of hyperv and SMM enabled
windows VM running nested on KVM, which fail due
to this issue combined with lack of dirty bit setting.
Signed-off-by: Maxim Levitsky <[email protected]>
Cc: [email protected]
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kvm/svm/svm.c | 5 +++++
arch/x86/kvm/vmx/vmx.c | 1 +
2 files changed, 6 insertions(+)
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4445,6 +4445,11 @@ static int svm_leave_smm(struct kvm_vcpu
nested_load_control_from_vmcb12(svm, &vmcb12->control);
ret = enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12, false);
+ if (ret)
+ goto unmap_save;
+
+ svm->nested.nested_run_pending = 1;
+
unmap_save:
kvm_vcpu_unmap(vcpu, &map_save, true);
unmap_map:
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7534,6 +7534,7 @@ static int vmx_leave_smm(struct kvm_vcpu
if (ret)
return ret;
+ vmx->nested.nested_run_pending = 1;
vmx->nested.smm.guest_mode = false;
}
return 0;
From: Julian Braha <[email protected]>
[ Upstream commit 3a5286955bf5febc3d151bcb2c5e272e383b64aa ]
When PINCTRL_BCM63XX is selected,
and REGMAP is not selected,
Kbuild gives the following warning:
WARNING: unmet direct dependencies detected for GPIO_REGMAP
Depends on [n]: GPIOLIB [=y] && REGMAP [=n]
Selected by [y]:
- PINCTRL_BCM63XX [=y] && PINCTRL [=y]
This is because PINCTRL_BCM63XX
selects GPIO_REGMAP without selecting or depending on
REGMAP, despite GPIO_REGMAP depending on REGMAP.
This unmet dependency bug was detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.
Signed-off-by: Julian Braha <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/pinctrl/bcm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig
index 8fc1feedd8617..5116b014e2a4f 100644
--- a/drivers/pinctrl/bcm/Kconfig
+++ b/drivers/pinctrl/bcm/Kconfig
@@ -35,6 +35,7 @@ config PINCTRL_BCM63XX
select PINCONF
select GENERIC_PINCONF
select GPIOLIB
+ select REGMAP
select GPIO_REGMAP
config PINCTRL_BCM6318
--
2.34.1
From: Christoph Hellwig <[email protected]>
commit 7a5428dcb7902700b830e912feee4e845df7c019 upstream.
Various block drivers call blk_set_queue_dying to mark a disk as dead due
to surprise removal events, but since commit 8e141f9eb803 that doesn't
work given that the GD_DEAD flag needs to be set to stop I/O.
Replace the driver calls to blk_set_queue_dying with a new (and properly
documented) blk_mark_disk_dead API, and fold blk_set_queue_dying into the
only remaining caller.
Fixes: 8e141f9eb803 ("block: drain file system I/O on del_gendisk")
Reported-by: Markus Blöchl <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
block/blk-core.c | 10 ++--------
block/genhd.c | 14 ++++++++++++++
drivers/block/mtip32xx/mtip32xx.c | 2 +-
drivers/block/rbd.c | 2 +-
drivers/block/xen-blkfront.c | 2 +-
drivers/md/dm.c | 2 +-
drivers/nvme/host/core.c | 2 +-
drivers/nvme/host/multipath.c | 2 +-
include/linux/blkdev.h | 3 ++-
9 files changed, 24 insertions(+), 15 deletions(-)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -324,13 +324,6 @@ void blk_queue_start_drain(struct reques
wake_up_all(&q->mq_freeze_wq);
}
-void blk_set_queue_dying(struct request_queue *q)
-{
- blk_queue_flag_set(QUEUE_FLAG_DYING, q);
- blk_queue_start_drain(q);
-}
-EXPORT_SYMBOL_GPL(blk_set_queue_dying);
-
/**
* blk_cleanup_queue - shutdown a request queue
* @q: request queue to shutdown
@@ -348,7 +341,8 @@ void blk_cleanup_queue(struct request_qu
WARN_ON_ONCE(blk_queue_registered(q));
/* mark @q DYING, no new request or merges will be allowed afterwards */
- blk_set_queue_dying(q);
+ blk_queue_flag_set(QUEUE_FLAG_DYING, q);
+ blk_queue_start_drain(q);
blk_queue_flag_set(QUEUE_FLAG_NOMERGES, q);
blk_queue_flag_set(QUEUE_FLAG_NOXMERGES, q);
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -550,6 +550,20 @@ out_free_ext_minor:
EXPORT_SYMBOL(device_add_disk);
/**
+ * blk_mark_disk_dead - mark a disk as dead
+ * @disk: disk to mark as dead
+ *
+ * Mark as disk as dead (e.g. surprise removed) and don't accept any new I/O
+ * to this disk.
+ */
+void blk_mark_disk_dead(struct gendisk *disk)
+{
+ set_bit(GD_DEAD, &disk->state);
+ blk_queue_start_drain(disk->queue);
+}
+EXPORT_SYMBOL_GPL(blk_mark_disk_dead);
+
+/**
* del_gendisk - remove the gendisk
* @disk: the struct gendisk to remove
*
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4113,7 +4113,7 @@ static void mtip_pci_remove(struct pci_d
"Completion workers still active!\n");
}
- blk_set_queue_dying(dd->queue);
+ blk_mark_disk_dead(dd->disk);
set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag);
/* Clean up the block layer. */
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -7186,7 +7186,7 @@ static ssize_t do_rbd_remove(struct bus_
* IO to complete/fail.
*/
blk_mq_freeze_queue(rbd_dev->disk->queue);
- blk_set_queue_dying(rbd_dev->disk->queue);
+ blk_mark_disk_dead(rbd_dev->disk);
}
del_gendisk(rbd_dev->disk);
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -2129,7 +2129,7 @@ static void blkfront_closing(struct blkf
/* No more blkif_request(). */
blk_mq_stop_hw_queues(info->rq);
- blk_set_queue_dying(info->rq);
+ blk_mark_disk_dead(info->gd);
set_capacity(info->gd, 0);
for_each_rinfo(info, rinfo, i) {
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2140,7 +2140,7 @@ static void __dm_destroy(struct mapped_d
set_bit(DMF_FREEING, &md->flags);
spin_unlock(&_minor_lock);
- blk_set_queue_dying(md->queue);
+ blk_mark_disk_dead(md->disk);
/*
* Take suspend_lock so that presuspend and postsuspend methods
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4578,7 +4578,7 @@ static void nvme_set_queue_dying(struct
if (test_and_set_bit(NVME_NS_DEAD, &ns->flags))
return;
- blk_set_queue_dying(ns->queue);
+ blk_mark_disk_dead(ns->disk);
nvme_start_ns_queue(ns);
set_capacity_and_notify(ns->disk, 0);
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -817,7 +817,7 @@ void nvme_mpath_remove_disk(struct nvme_
{
if (!head->disk)
return;
- blk_set_queue_dying(head->disk->queue);
+ blk_mark_disk_dead(head->disk);
/* make sure all pending bios are cleaned up */
kblockd_schedule_work(&head->requeue_work);
flush_work(&head->requeue_work);
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -740,7 +740,8 @@ extern bool blk_queue_can_use_dma_map_me
bool __must_check blk_get_queue(struct request_queue *);
extern void blk_put_queue(struct request_queue *);
-extern void blk_set_queue_dying(struct request_queue *);
+
+void blk_mark_disk_dead(struct gendisk *disk);
#ifdef CONFIG_BLOCK
/*
From: Mark Brown <[email protected]>
commit 650204ded3703b5817bd4b6a77fa47d333c4f902 upstream.
When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.
Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/soc-ops.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -512,7 +512,7 @@ int snd_soc_put_volsw_range(struct snd_k
unsigned int mask = (1 << fls(max)) - 1;
unsigned int invert = mc->invert;
unsigned int val, val_mask;
- int ret;
+ int err, ret;
if (invert)
val = (max - ucontrol->value.integer.value[0]) & mask;
@@ -521,9 +521,10 @@ int snd_soc_put_volsw_range(struct snd_k
val_mask = mask << shift;
val = val << shift;
- ret = snd_soc_component_update_bits(component, reg, val_mask, val);
- if (ret < 0)
- return ret;
+ err = snd_soc_component_update_bits(component, reg, val_mask, val);
+ if (err < 0)
+ return err;
+ ret = err;
if (snd_soc_volsw_is_stereo(mc)) {
if (invert)
@@ -533,8 +534,12 @@ int snd_soc_put_volsw_range(struct snd_k
val_mask = mask << shift;
val = val << shift;
- ret = snd_soc_component_update_bits(component, rreg, val_mask,
+ err = snd_soc_component_update_bits(component, rreg, val_mask,
val);
+ /* Don't discard any error code or drop change flag */
+ if (ret == 0 || err < 0) {
+ ret = err;
+ }
}
return ret;
From: Qu Wenruo <[email protected]>
commit 0d1ffa2228cb34f485f8fe927f134b82a0ea62ae upstream.
Once we start writeback (have called btrfs_run_delalloc_range()), we
allocate an extent, create an extent map point to that extent, with a
generation of (u64)-1, created the ordered extent and then clear the
DELALLOC bit from the range in the inode's io tree.
Such extent map can pass the first call of defrag_collect_targets(), as
its generation is (u64)-1, meets any possible minimal generation check.
And the range will not have DELALLOC bit, also passing the DELALLOC bit
check.
It will only be re-checked in the second call of
defrag_collect_targets(), which will wait for writeback.
But at that stage we have already spent our time waiting for some IO we
may or may not want to defrag.
Let's reject such extents early so we won't waste our time.
CC: [email protected] # 5.16
Reviewed-by: Filipe Manana <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
Signed-off-by: David Sterba <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/btrfs/ioctl.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1184,6 +1184,10 @@ static int defrag_collect_targets(struct
if (em->generation < newer_than)
goto next;
+ /* This em is under writeback, no need to defrag */
+ if (em->generation == (u64)-1)
+ goto next;
+
/*
* Our start offset might be in the middle of an existing extent
* map, so take that into account.
From: Mario Limonciello <[email protected]>
[ Upstream commit a6ed2035878e5ad2e43ed175d8812ac9399d6c40 ]
On some OEM setups users can configure the BIOS for S3 or S2idle.
When configured to S3 users can still choose 's2idle' in the kernel by
using `/sys/power/mem_sleep`. Before commit 6dc8265f9803 ("drm/amdgpu:
always reset the asic in suspend (v2)"), the GPU would crash. Now when
configured this way, the system should resume but will use more power.
As such, adjust the `amdpu_acpi_is_s0ix function` to warn users about
potential power consumption issues during their first attempt at
suspending.
Reported-by: Bjoren Dasse <[email protected]>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1824
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 8 ++++++--
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 24 +++++++++++++++++++-----
2 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7d67aec6f4a2b..0a5a5370a2004 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1406,12 +1406,10 @@ int amdgpu_acpi_smart_shift_update(struct drm_device *dev, enum amdgpu_ss ss_sta
int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev);
void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps);
-bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev);
void amdgpu_acpi_detect(void);
#else
static inline int amdgpu_acpi_init(struct amdgpu_device *adev) { return 0; }
static inline void amdgpu_acpi_fini(struct amdgpu_device *adev) { }
-static inline bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) { return false; }
static inline void amdgpu_acpi_detect(void) { }
static inline bool amdgpu_acpi_is_power_shift_control_supported(void) { return false; }
static inline int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev,
@@ -1420,6 +1418,12 @@ static inline int amdgpu_acpi_smart_shift_update(struct drm_device *dev,
enum amdgpu_ss ss_state) { return 0; }
#endif
+#if defined(CONFIG_ACPI) && defined(CONFIG_SUSPEND)
+bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev);
+#else
+static inline bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) { return false; }
+#endif
+
int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
uint64_t addr, struct amdgpu_bo **bo,
struct amdgpu_bo_va_mapping **mapping);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 4811b0faafd9a..b19d407518024 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -1031,6 +1031,7 @@ void amdgpu_acpi_detect(void)
}
}
+#if IS_ENABLED(CONFIG_SUSPEND)
/**
* amdgpu_acpi_is_s0ix_active
*
@@ -1040,11 +1041,24 @@ void amdgpu_acpi_detect(void)
*/
bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev)
{
-#if IS_ENABLED(CONFIG_AMD_PMC) && IS_ENABLED(CONFIG_SUSPEND)
- if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
- if (adev->flags & AMD_IS_APU)
- return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
+ if (!(adev->flags & AMD_IS_APU) ||
+ (pm_suspend_target_state != PM_SUSPEND_TO_IDLE))
+ return false;
+
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
+ dev_warn_once(adev->dev,
+ "Power consumption will be higher as BIOS has not been configured for suspend-to-idle.\n"
+ "To use suspend-to-idle change the sleep mode in BIOS setup.\n");
+ return false;
}
-#endif
+
+#if !IS_ENABLED(CONFIG_AMD_PMC)
+ dev_warn_once(adev->dev,
+ "Power consumption will be higher as the kernel has not been compiled with CONFIG_AMD_PMC.\n");
return false;
+#else
+ return true;
+#endif /* CONFIG_AMD_PMC */
}
+
+#endif /* CONFIG_SUSPEND */
--
2.34.1
From: Guo Ren <[email protected]>
[ Upstream commit 1d4df649cbb4b26d19bea38ecff4b65b10a1bbca ]
The thead,c900-plic has been used in opensbi to distinguish
PLIC [1]. Although PLICs have the same behaviors in Linux,
they are different hardware with some custom initializing in
firmware(opensbi).
Qute opensbi patch commit-msg by Samuel:
The T-HEAD PLIC implementation requires setting a delegation bit
to allow access from S-mode. Now that the T-HEAD PLIC has its own
compatible string, set this bit automatically from the PLIC driver,
instead of reaching into the PLIC's MMIO space from another driver.
[1]: https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6
Signed-off-by: Guo Ren <[email protected]>
Cc: Anup Patel <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Samuel Holland <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Tested-by: Samuel Holland <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/irqchip/irq-sifive-plic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 259065d271ef0..09cc98266d30f 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -398,3 +398,4 @@ static int __init plic_init(struct device_node *node,
IRQCHIP_DECLARE(sifive_plic, "sifive,plic-1.0.0", plic_init);
IRQCHIP_DECLARE(riscv_plic0, "riscv,plic0", plic_init); /* for legacy systems */
+IRQCHIP_DECLARE(thead_c900_plic, "thead,c900-plic", plic_init); /* for firmware driver */
--
2.34.1
From: Ville Syrjälä <[email protected]>
commit 439cf34c8e0a8a33d8c15a31be1b7423426bc765 upstream.
Make sure we don't assign an error pointer to crtc_state->mode_blob
as that will break all kinds of places that assume either NULL or a
valid pointer (eg. drm_property_blob_put()).
Cc: [email protected]
Reported-by: fuyufan <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Acked-by: Maxime Ripard <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/drm_atomic_uapi.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -76,15 +76,17 @@ int drm_atomic_set_mode_for_crtc(struct
state->mode_blob = NULL;
if (mode) {
+ struct drm_property_blob *blob;
+
drm_mode_convert_to_umode(&umode, mode);
- state->mode_blob =
- drm_property_create_blob(state->crtc->dev,
- sizeof(umode),
- &umode);
- if (IS_ERR(state->mode_blob))
- return PTR_ERR(state->mode_blob);
+ blob = drm_property_create_blob(crtc->dev,
+ sizeof(umode), &umode);
+ if (IS_ERR(blob))
+ return PTR_ERR(blob);
drm_mode_copy(&state->mode, mode);
+
+ state->mode_blob = blob;
state->enable = true;
drm_dbg_atomic(crtc->dev,
"Set [MODE:%s] for [CRTC:%d:%s] state %p\n",
From: Daniel Thompson <[email protected]>
commit 2787710f73fcce4a9bdab540aaf1aef778a27462 upstream.
I'm was on the receiving end of a lockdep splat from this driver and after
scratching my head I couldn't be entirely sure it was a false positive
given we would also have to think about whether the regulator locking is
safe (since the notifier is called whilst holding regulator locks which
are also needed for regulator_is_enabled() ).
Regardless of whether it is a real bug or not, the mutex isn't needed.
We can use reference counting tricks instead to avoid races with the
notifier calls.
The observed splat follows:
------------------------------------------------------
kworker/u16:3/127 is trying to acquire lock:
ffff00008021fb20 (&ihid_goodix->regulator_mutex){+.+.}-{4:4}, at: ihid_goodix_vdd_notify+0x30/0x94
but task is already holding lock:
ffff0000835c60c0 (&(&rdev->notifier)->rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x30/0x70
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&(&rdev->notifier)->rwsem){++++}-{4:4}:
down_write+0x68/0x8c
blocking_notifier_chain_register+0x54/0x70
regulator_register_notifier+0x1c/0x24
devm_regulator_register_notifier+0x58/0x98
i2c_hid_of_goodix_probe+0xdc/0x158
i2c_device_probe+0x25d/0x270
really_probe+0x174/0x2cc
__driver_probe_device+0xc0/0xd8
driver_probe_device+0x50/0xe4
__device_attach_driver+0xa8/0xc0
bus_for_each_drv+0x9c/0xc0
__device_attach_async_helper+0x6c/0xbc
async_run_entry_fn+0x38/0x100
process_one_work+0x294/0x438
worker_thread+0x180/0x258
kthread+0x120/0x130
ret_from_fork+0x10/0x20
-> #0 (&ihid_goodix->regulator_mutex){+.+.}-{4:4}:
__lock_acquire+0xd24/0xfe8
lock_acquire+0x288/0x2f4
__mutex_lock+0xa0/0x338
mutex_lock_nested+0x3c/0x5c
ihid_goodix_vdd_notify+0x30/0x94
notifier_call_chain+0x6c/0x8c
blocking_notifier_call_chain+0x48/0x70
_notifier_call_chain.isra.0+0x18/0x20
_regulator_enable+0xc0/0x178
regulator_enable+0x40/0x7c
goodix_i2c_hid_power_up+0x18/0x20
i2c_hid_core_power_up.isra.0+0x1c/0x2c
i2c_hid_core_probe+0xd8/0x3d4
i2c_hid_of_goodix_probe+0x14c/0x158
i2c_device_probe+0x25c/0x270
really_probe+0x174/0x2cc
__driver_probe_device+0xc0/0xd8
driver_probe_device+0x50/0xe4
__device_attach_driver+0xa8/0xc0
bus_for_each_drv+0x9c/0xc0
__device_attach_async_helper+0x6c/0xbc
async_run_entry_fn+0x38/0x100
process_one_work+0x294/0x438
worker_thread+0x180/0x258
kthread+0x120/0x130
ret_from_fork+0x10/0x20
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&(&rdev->notifier)->rwsem);
lock(&ihid_goodix->regulator_mutex);
lock(&(&rdev->notifier)->rwsem);
lock(&ihid_goodix->regulator_mutex);
*** DEADLOCK ***
Signed-off-by: Daniel Thompson <[email protected]>
Fixes: 18eeef46d359 ("HID: i2c-hid: goodix: Tie the reset line to true state of the regulator")
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hid/i2c-hid/i2c-hid-of-goodix.c | 28 ++++++++++++----------------
1 file changed, 12 insertions(+), 16 deletions(-)
--- a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
@@ -27,7 +27,6 @@ struct i2c_hid_of_goodix {
struct regulator *vdd;
struct notifier_block nb;
- struct mutex regulator_mutex;
struct gpio_desc *reset_gpio;
const struct goodix_i2c_hid_timing_data *timings;
};
@@ -67,8 +66,6 @@ static int ihid_goodix_vdd_notify(struct
container_of(nb, struct i2c_hid_of_goodix, nb);
int ret = NOTIFY_OK;
- mutex_lock(&ihid_goodix->regulator_mutex);
-
switch (event) {
case REGULATOR_EVENT_PRE_DISABLE:
gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 1);
@@ -87,8 +84,6 @@ static int ihid_goodix_vdd_notify(struct
break;
}
- mutex_unlock(&ihid_goodix->regulator_mutex);
-
return ret;
}
@@ -102,8 +97,6 @@ static int i2c_hid_of_goodix_probe(struc
if (!ihid_goodix)
return -ENOMEM;
- mutex_init(&ihid_goodix->regulator_mutex);
-
ihid_goodix->ops.power_up = goodix_i2c_hid_power_up;
ihid_goodix->ops.power_down = goodix_i2c_hid_power_down;
@@ -130,25 +123,28 @@ static int i2c_hid_of_goodix_probe(struc
* long. Holding the controller in reset apparently draws extra
* power.
*/
- mutex_lock(&ihid_goodix->regulator_mutex);
ihid_goodix->nb.notifier_call = ihid_goodix_vdd_notify;
ret = devm_regulator_register_notifier(ihid_goodix->vdd, &ihid_goodix->nb);
- if (ret) {
- mutex_unlock(&ihid_goodix->regulator_mutex);
+ if (ret)
return dev_err_probe(&client->dev, ret,
"regulator notifier request failed\n");
- }
/*
* If someone else is holding the regulator on (or the regulator is
* an always-on one) we might never be told to deassert reset. Do it
- * now. Here we'll assume that someone else might have _just
- * barely_ turned the regulator on so we'll do the full
- * "post_power_delay" just in case.
+ * now... and temporarily bump the regulator reference count just to
+ * make sure it is impossible for this to race with our own notifier!
+ * We also assume that someone else might have _just barely_ turned
+ * the regulator on so we'll do the full "post_power_delay" just in
+ * case.
*/
- if (ihid_goodix->reset_gpio && regulator_is_enabled(ihid_goodix->vdd))
+ if (ihid_goodix->reset_gpio && regulator_is_enabled(ihid_goodix->vdd)) {
+ ret = regulator_enable(ihid_goodix->vdd);
+ if (ret)
+ return ret;
goodix_i2c_hid_deassert_reset(ihid_goodix, true);
- mutex_unlock(&ihid_goodix->regulator_mutex);
+ regulator_disable(ihid_goodix->vdd);
+ }
return i2c_hid_core_probe(client, &ihid_goodix->ops, 0x0001, 0);
}
On 21.02.22 13:29, Kalle Valo wrote:
> Thorsten Leemhuis <[email protected]> writes:
>
>> Hi, this is your Linux kernel regression tracker.
>>
>> On 21.02.22 09:48, Greg Kroah-Hartman wrote:
>>> From: Johannes Berg <[email protected]>
>>>
>>> commit bea2662e7818e15d7607d17d57912ac984275d94 upstream.
>>>
>>> If no firmware was present at all (or, presumably, all of the
>>> firmware files failed to parse), we end up unbinding by calling
>>> device_release_driver(), which calls remove(), which then in
>>> iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However
>>> the new code I added will still erroneously access it after it
>>> was freed.
>>>
>>> Set 'failure=false' in this case to avoid the access, all data
>>> was already freed anyway.
>>>
>>> Cc: [email protected]
>>> Reported-by: Stefan Agner <[email protected]>
>>> Reported-by: Wolfgang Walter <[email protected]>
>>> Reported-by: Jason Self <[email protected]>
>>> Reported-by: Dominik Behr <[email protected]>
>>> Reported-by: Marek Marczykowski-Górecki <[email protected]>
>>> Fixes: ab07506b0454 ("iwlwifi: fix leaks/bad data after failed firmware load")
>>> Signed-off-by: Johannes Berg <[email protected]>
>>> Signed-off-by: Kalle Valo <[email protected]>
>>> Link:
>>> https://lore.kernel.org/r/20220208114728.e6b514cf4c85.Iffb575ca2a623d7859b542c33b2a507d01554251@changeid
>>> Signed-off-by: Greg Kroah-Hartman <[email protected]>
>>
>> Great to see that you quickly picked up this patch. Once the new stable
>> and longterm releases are out on Wednesday, it will fix a regression
>> that made it into many stable and longterm kernels nearly four weeks
>> earlier. I tracked the issue, which made me we wonder: should I have
>> done something differently in this case to get the regression resolved
>> more quickly? Should I maybe have suggested to remove the culprit
>> temporarily until the fix was merged to mainline?
>>
>> For context, this is the story of the regression afaics: the change
>> ab07506b0454 ("iwlwifi: fix leaks/bad data after failed firmware load")
>> was merged for 5.17-rc1 (released on 2022-01-23). Shortly after it was
>> backported to several stable/longterm series with new versions released
>> on 2022-01-27. It triggered a general protection fault, if the proper
>> firmware file was missing. Afaics at least five people reported the
>> problem between 2022-02-01 and 2022-02-11 for at least 5.10.y, 5.15.y
>> and 5.16.y (some of those reports were on the stable list), which shows
>> that such a setup is not that unusual. A fix was posted on 2022-02-08
>> and approved and committed by a maintainer on 2022-02-10. It was then
>> merged to mainline on 2022-02-17 (I hope we can find ways to reduce such
>> particular timeframes in the future, but that's a different story).
>
> From mainline point of view there is not really any easy way to make
> this faster. There are multiple trees involved and pull requests always
> take time (we cannot submit a pull request for every commit sepately),
Well, I'm aware of all that, but OTOH I might be missing something, as
your reply makes me wonder: what is stopping you from asking Dave/Jakub
or even Linus himself to directly pick up a regression fix that
obviously bothers multiple people (the handful we known about might be
the tip of the iceberg)? Some mailing list posts from Linus iirc
indicate something like that is not a big problem for him, if it doesn't
happen too often. With such a approach the issue could have vanished a
from all our versions a week earlier (if that worth it in this
particular case is a different question; same for skipping linux-next,
but you accepted the patch on a Thursday, so it could have been in there
for one regular work day). Or would that also skip some wireless
specific CI that you want to chew on the patch first?
The thing is: I noticed how quickly regressions sometimes get fixed when
Linus is directly involved somehow, especially in cases where he himself
is affected by the issue. Obviously he deserves some special treatment,
but OTOH it kinda feels wrong to me when other regression fixes hang
around in git tree for weeks before they finally make it to mainline
(which is needed to also get them fixed in stable trees).
But okay, let's assume for a moment that things can't be sped up, to
bring me back to the question that made me write the mail you replied
to: Should I (or you/Johannes?) in that case have asked Greg to
temporarily revert the culprit in the stable tree until the fix is ready?
Ciao, Thorsten
From: Mike Christie <[email protected]>
commit f10f582d28220f50099d3f561116256267821429 upstream.
This fixes a deadlock added with commit b40f3894e39e ("scsi: qedi: Complete
TMF works before disconnect")
Bug description from Jia-Ju Bai:
qedi_process_tmf_resp()
spin_lock(&session->back_lock); --> Line 201 (Lock A)
spin_lock(&qedi_conn->tmf_work_lock); --> Line 230 (Lock B)
qedi_process_cmd_cleanup_resp()
spin_lock_bh(&qedi_conn->tmf_work_lock); --> Line 752 (Lock B)
spin_lock_bh(&conn->session->back_lock); --> Line 784 (Lock A)
When qedi_process_tmf_resp() and qedi_process_cmd_cleanup_resp() are
concurrently executed, the deadlock can occur.
This patch fixes the deadlock by not holding the tmf_work_lock in
qedi_process_cmd_cleanup_resp while holding the back_lock. The
tmf_work_lock is only needed while we remove the tmf_work from the
work_list.
Link: https://lore.kernel.org/r/[email protected]
Fixes: b40f3894e39e ("scsi: qedi: Complete TMF works before disconnect")
Cc: Manish Rangankar <[email protected]>
Cc: Nilesh Javali <[email protected]>
Reported-by: TOTE Robot <[email protected]>
Reported-by: Jia-Ju Bai <[email protected]>
Signed-off-by: Mike Christie <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/scsi/qedi/qedi_fw.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/scsi/qedi/qedi_fw.c
+++ b/drivers/scsi/qedi/qedi_fw.c
@@ -771,11 +771,10 @@ static void qedi_process_cmd_cleanup_res
qedi_cmd->list_tmf_work = NULL;
}
}
+ spin_unlock_bh(&qedi_conn->tmf_work_lock);
- if (!found) {
- spin_unlock_bh(&qedi_conn->tmf_work_lock);
+ if (!found)
goto check_cleanup_reqs;
- }
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
"TMF work, cqe->tid=0x%x, tmf flags=0x%x, cid=0x%x\n",
@@ -806,7 +805,6 @@ static void qedi_process_cmd_cleanup_res
qedi_cmd->state = CLEANUP_RECV;
unlock:
spin_unlock_bh(&conn->session->back_lock);
- spin_unlock_bh(&qedi_conn->tmf_work_lock);
wake_up_interruptible(&qedi_conn->wait_queue);
return;
From: Namjae Jeon <[email protected]>
[ Upstream commit 97550c7478a2da93e348d8c3075d92cddd473a78 ]
ksmbd sets the inode number to UniqueId. However, the same UniqueId for
dot and dotdot entry is set to the inode number of the parent inode.
This patch set them using the current inode and parent inode.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
fs/ksmbd/smb_common.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c
index ef7f42b0290a8..9a7e211dbf4f4 100644
--- a/fs/ksmbd/smb_common.c
+++ b/fs/ksmbd/smb_common.c
@@ -308,14 +308,17 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level,
for (i = 0; i < 2; i++) {
struct kstat kstat;
struct ksmbd_kstat ksmbd_kstat;
+ struct dentry *dentry;
if (!dir->dot_dotdot[i]) { /* fill dot entry info */
if (i == 0) {
d_info->name = ".";
d_info->name_len = 1;
+ dentry = dir->filp->f_path.dentry;
} else {
d_info->name = "..";
d_info->name_len = 2;
+ dentry = dir->filp->f_path.dentry->d_parent;
}
if (!match_pattern(d_info->name, d_info->name_len,
@@ -327,7 +330,7 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level,
ksmbd_kstat.kstat = &kstat;
ksmbd_vfs_fill_dentry_attrs(work,
user_ns,
- dir->filp->f_path.dentry->d_parent,
+ dentry,
&ksmbd_kstat);
rc = fn(conn, info_level, d_info, &ksmbd_kstat);
if (rc)
--
2.34.1
From: Jon Maloy <[email protected]>
commit 032062f363b4bf02b1d547f329aa5d97b6a17410 upstream.
When a link comes up we add its presence to the name table to make it
possible for users to subscribe for link up/down events. However, after
a previous call signature change the binding is wrongly published with
the peer node as publishing node, instead of the own node as it should
be. This has the effect that the command 'tipc name table show' will
list the link binding (service type 2) with node scope and a peer node
as originator, something that obviously is impossible.
We correct this bug here.
Fixes: 50a3499ab853 ("tipc: simplify signature of tipc_namtbl_publish()")
Signed-off-by: Jon Maloy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/tipc/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -413,7 +413,7 @@ static void tipc_node_write_unlock(struc
tipc_uaddr(&ua, TIPC_SERVICE_RANGE, TIPC_NODE_SCOPE,
TIPC_LINK_STATE, n->addr, n->addr);
sk.ref = n->link_id;
- sk.node = n->addr;
+ sk.node = tipc_own_addr(net);
bearer_id = n->link_id & 0xffff;
publ_list = &n->publ_list;
From: Ansuel Smith <[email protected]>
commit 3dd8ba961b9356c4113b96541c752c73d98fef70 upstream.
Mtdpart doesn't free pparts when a cleanup function is declared.
Add missing free for pparts in cleanup function for smem to fix the
leak.
Fixes: 10f3b4d79958 ("mtd: parsers: qcom: Fix leaking of partition name")
Signed-off-by: Ansuel Smith <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/mtd/parsers/qcomsmempart.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -173,6 +173,8 @@ static void parse_qcomsmem_cleanup(const
for (i = 0; i < nr_parts; i++)
kfree(pparts[i].name);
+
+ kfree(pparts);
}
static const struct of_device_id qcomsmem_of_match_table[] = {
From: Mans Rullgard <[email protected]>
commit 6bb9681a43f34f2cab4aad6e2a02da4ce54d13c5 upstream.
The reset input to the LAN9303 chip is active low, and devicetree
gpio handles reflect this. Therefore, the gpio should be requested
with an initial state of high in order for the reset signal to be
asserted. Other uses of the gpio already use the correct polarity.
Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
Signed-off-by: Mans Rullgard <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fianelil <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/dsa/lan9303-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -1309,7 +1309,7 @@ static int lan9303_probe_reset_gpio(stru
struct device_node *np)
{
chip->reset_gpio = devm_gpiod_get_optional(chip->dev, "reset",
- GPIOD_OUT_LOW);
+ GPIOD_OUT_HIGH);
if (IS_ERR(chip->reset_gpio))
return PTR_ERR(chip->reset_gpio);
From: Miaoqian Lin <[email protected]>
commit e831c7aba950f3ae94002b10321279654525e5ec upstream.
The pm_runtime_enable will increase power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Fixes: 4f3ceca254e0 ("dmaengine: stm32-dmamux: Add PM Runtime support")
Signed-off-by: Miaoqian Lin <[email protected]>
Reviewed-by: Amelie Delaunay <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/dma/stm32-dmamux.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -292,10 +292,12 @@ static int stm32_dmamux_probe(struct pla
ret = of_dma_router_register(node, stm32_dmamux_route_allocate,
&stm32_dmamux->dmarouter);
if (ret)
- goto err_clk;
+ goto pm_disable;
return 0;
+pm_disable:
+ pm_runtime_disable(&pdev->dev);
err_clk:
clk_disable_unprepare(stm32_dmamux->clk);
From: Eric W. Biederman <[email protected]>
commit a55d07294f1e9b576093bdfa95422f8119941e83 upstream.
Michal Koutný <[email protected]> wrote:
> Tasks are associated to multiple users at once. Historically and as per
> setrlimit(2) RLIMIT_NPROC is enforce based on real user ID.
>
> The commit 21d1c5e386bc ("Reimplement RLIMIT_NPROC on top of ucounts")
> made the accounting structure "indexed" by euid and hence potentially
> account tasks differently.
>
> The effective user ID may be different e.g. for setuid programs but
> those are exec'd into already existing task (i.e. below limit), so
> different accounting is moot.
>
> Some special setresuid(2) users may notice the difference, justifying
> this fix.
I looked at cred->ucount and it is only used for rlimit operations
that were previously stored in cred->user. Making the fact
cred->ucount can refer to a different user from cred->user a bug,
affecting all uses of cred->ulimit not just RLIMIT_NPROC.
Fix set_cred_ucounts to always use the real uid not the effective uid.
Further simplify set_cred_ucounts by noticing that set_cred_ucounts
somehow retained a draft version of the check to see if alloc_ucounts
was needed that checks the new->user and new->user_ns against the
current_real_cred(). Remove that draft version of the check.
All that matters for setting the cred->ucounts are the user_ns and uid
fields in the cred.
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Reported-by: Michal Koutný <[email protected]>
Reviewed-by: Michal Koutný <[email protected]>
Fixes: 21d1c5e386bc ("Reimplement RLIMIT_NPROC on top of ucounts")
Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/cred.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -665,21 +665,16 @@ EXPORT_SYMBOL(cred_fscmp);
int set_cred_ucounts(struct cred *new)
{
- struct task_struct *task = current;
- const struct cred *old = task->real_cred;
struct ucounts *new_ucounts, *old_ucounts = new->ucounts;
- if (new->user == old->user && new->user_ns == old->user_ns)
- return 0;
-
/*
* This optimization is needed because alloc_ucounts() uses locks
* for table lookups.
*/
- if (old_ucounts->ns == new->user_ns && uid_eq(old_ucounts->uid, new->euid))
+ if (old_ucounts->ns == new->user_ns && uid_eq(old_ucounts->uid, new->uid))
return 0;
- if (!(new_ucounts = alloc_ucounts(new->user_ns, new->euid)))
+ if (!(new_ucounts = alloc_ucounts(new->user_ns, new->uid)))
return -EAGAIN;
new->ucounts = new_ucounts;
From: Jiasheng Jiang <[email protected]>
commit a72c01a94f1d285a274219d36e2a17b4846c0615 upstream.
As the possible failure of the alloc, the ifmgd->assoc_req_ies might be
NULL pointer returned from kmemdup().
Therefore it might be better to free the skb and return error in order
to fail the association, like ieee80211_assoc_success().
Also, the caller, ieee80211_do_assoc(), needs to deal with the return
value from ieee80211_send_assoc().
Fixes: 4d9ec73d2b78 ("cfg80211: Report Association Request frame IEs in association events")
Signed-off-by: Jiasheng Jiang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[fix some paths to be errors, not success]
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mac80211/mlme.c | 29 +++++++++++++++++++++--------
1 file changed, 21 insertions(+), 8 deletions(-)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -664,7 +664,7 @@ static void ieee80211_add_he_ie(struct i
ieee80211_ie_build_he_6ghz_cap(sdata, skb);
}
-static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
+static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -684,6 +684,7 @@ static void ieee80211_send_assoc(struct
enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
const struct ieee80211_sband_iftype_data *iftd;
struct ieee80211_prep_tx_info info = {};
+ int ret;
/* we know it's writable, cast away the const */
if (assoc_data->ie_len)
@@ -697,7 +698,7 @@ static void ieee80211_send_assoc(struct
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
if (WARN_ON(!chanctx_conf)) {
rcu_read_unlock();
- return;
+ return -EINVAL;
}
chan = chanctx_conf->def.chan;
rcu_read_unlock();
@@ -748,7 +749,7 @@ static void ieee80211_send_assoc(struct
(iftd ? iftd->vendor_elems.len : 0),
GFP_KERNEL);
if (!skb)
- return;
+ return -ENOMEM;
skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -1029,15 +1030,22 @@ skip_rates:
skb_put_data(skb, assoc_data->ie + offset, noffset - offset);
}
- if (assoc_data->fils_kek_len &&
- fils_encrypt_assoc_req(skb, assoc_data) < 0) {
- dev_kfree_skb(skb);
- return;
+ if (assoc_data->fils_kek_len) {
+ ret = fils_encrypt_assoc_req(skb, assoc_data);
+ if (ret < 0) {
+ dev_kfree_skb(skb);
+ return ret;
+ }
}
pos = skb_tail_pointer(skb);
kfree(ifmgd->assoc_req_ies);
ifmgd->assoc_req_ies = kmemdup(ie_start, pos - ie_start, GFP_ATOMIC);
+ if (!ifmgd->assoc_req_ies) {
+ dev_kfree_skb(skb);
+ return -ENOMEM;
+ }
+
ifmgd->assoc_req_ies_len = pos - ie_start;
drv_mgd_prepare_tx(local, sdata, &info);
@@ -1047,6 +1055,8 @@ skip_rates:
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
IEEE80211_TX_INTFL_MLME_CONN_TX;
ieee80211_tx_skb(sdata, skb);
+
+ return 0;
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
@@ -4491,6 +4501,7 @@ static int ieee80211_do_assoc(struct iee
{
struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
struct ieee80211_local *local = sdata->local;
+ int ret;
sdata_assert_lock(sdata);
@@ -4511,7 +4522,9 @@ static int ieee80211_do_assoc(struct iee
sdata_info(sdata, "associate with %pM (try %d/%d)\n",
assoc_data->bss->bssid, assoc_data->tries,
IEEE80211_ASSOC_MAX_TRIES);
- ieee80211_send_assoc(sdata);
+ ret = ieee80211_send_assoc(sdata);
+ if (ret)
+ return ret;
if (!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT;
From: Eliav Farber <[email protected]>
commit f8efca92ae509c25e0a4bd5d0a86decea4f0c41e upstream.
Do alignment logic properly and use the "ptr" local variable for
calculating the remainder of the alignment.
This became an issue because struct edac_mc_layer has a size that is not
zero modulo eight, and the next offset that was prepared for the private
data was unaligned, causing an alignment exception.
The patch in Fixes: which broke this actually wanted to "what we
actually care about is the alignment of the actual pointer that's about
to be returned." But it didn't check that alignment.
Use the correct variable "ptr" for that.
[ bp: Massage commit message. ]
Fixes: 8447c4d15e35 ("edac: Do alignment logic properly in edac_align_ptr()")
Signed-off-by: Eliav Farber <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/edac/edac_mc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -213,7 +213,7 @@ void *edac_align_ptr(void **p, unsigned
else
return (char *)ptr;
- r = (unsigned long)p % align;
+ r = (unsigned long)ptr % align;
if (r == 0)
return (char *)ptr;
From: Robin Murphy <[email protected]>
commit 59f39bfa6553d598cb22f694d45e89547f420d85 upstream.
drm_gem_cma_mmap() cannot assume every implementation of dma_mmap_wc()
will end up calling remap_pfn_range() (which happens to set the relevant
vma flag, among others), so in order to make sure expectations around
VM_DONTEXPAND are met, let it explicitly set the flag like most other
GEM mmap implementations do.
This avoids repeated warnings on a small minority of systems where the
display is behind an IOMMU, and has a simple driver which does not
override drm_gem_cma_default_funcs. Arm hdlcd is an in-tree affected
driver. Out-of-tree, the Apple DCP driver is affected; this fix is
required for DCP to be mainlined.
[Alyssa: Update commit message.]
Fixes: c40069cb7bd6 ("drm: add mmap() to drm_gem_object_funcs")
Acked-by: Daniel Vetter <[email protected]>
Signed-off-by: Robin Murphy <[email protected]>
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/drm_gem_cma_helper.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -518,6 +518,7 @@ int drm_gem_cma_mmap(struct drm_gem_obje
*/
vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node);
vma->vm_flags &= ~VM_PFNMAP;
+ vma->vm_flags |= VM_DONTEXPAND;
cma_obj = to_drm_gem_cma_obj(obj);
From: Mark Brown <[email protected]>
commit 7f3d90a3519680dfa23e750f80bfdefc0f5eda4a upstream.
When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.
Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/soc-ops.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -427,6 +427,7 @@ int snd_soc_put_volsw_sx(struct snd_kcon
int min = mc->min;
unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
int err = 0;
+ int ret;
unsigned int val, val_mask;
val = ucontrol->value.integer.value[0];
@@ -443,6 +444,7 @@ int snd_soc_put_volsw_sx(struct snd_kcon
err = snd_soc_component_update_bits(component, reg, val_mask, val);
if (err < 0)
return err;
+ ret = err;
if (snd_soc_volsw_is_stereo(mc)) {
unsigned int val2;
@@ -453,6 +455,11 @@ int snd_soc_put_volsw_sx(struct snd_kcon
err = snd_soc_component_update_bits(component, reg2, val_mask,
val2);
+
+ /* Don't discard any error code or drop change flag */
+ if (ret == 0 || err < 0) {
+ ret = err;
+ }
}
return err;
}
From: Arnaldo Carvalho de Melo <[email protected]>
commit 31ded1535e3182778a1d0e5c32711f55da3bc512 upstream.
This was detected by the gcc in Fedora Rawhide's gcc:
50 11.01 fedora:rawhide : FAIL gcc version 12.0.1 20220205 (Red Hat 12.0.1-0) (GCC)
inlined from 'bpf__config_obj' at util/bpf-loader.c:1242:9:
util/bpf-loader.c:1225:34: error: pointer 'map_opt' may be used after 'free' [-Werror=use-after-free]
1225 | *key_scan_pos += strlen(map_opt);
| ^~~~~~~~~~~~~~~
util/bpf-loader.c:1223:9: note: call to 'free' here
1223 | free(map_name);
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
So do the calculations on the pointer before freeing it.
Fixes: 04f9bf2bac72480c ("perf bpf-loader: Add missing '*' for key_scan_pos")
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang ShaoBo <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/perf/util/bpf-loader.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1214,9 +1214,10 @@ bpf__obj_config_map(struct bpf_object *o
pr_debug("ERROR: Invalid map config option '%s'\n", map_opt);
err = -BPF_LOADER_ERRNO__OBJCONF_MAP_OPT;
out:
- free(map_name);
if (!err)
*key_scan_pos += strlen(map_opt);
+
+ free(map_name);
return err;
}
From: Christian Hewitt <[email protected]>
[ Upstream commit 76577c9137456febb05b0e17d244113196a98968 ]
Add an additional reserved memory region for the BL32 trusted firmware
present in many devices that boot from Amlogic vendor u-boot.
Suggested-by: Mateusz Krzak <[email protected]>
Signed-off-by: Christian Hewitt <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 6b457b2c30a4b..aa14ea017a613 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -49,6 +49,12 @@
no-map;
};
+ /* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+ secmon_reserved_bl32: secmon@5300000 {
+ reg = <0x0 0x05300000 0x0 0x2000000>;
+ no-map;
+ };
+
linux,cma {
compatible = "shared-dma-pool";
reusable;
--
2.34.1
On Mon, Feb 21, 2022 at 3:13 PM Greg Kroah-Hartman
<[email protected]> wrote:
>
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
hello,
Compiled and booted 5.16.11-rc1+ on VivoBook 15_ASUS Laptop X507UAR.
NO new regression or regressions from dmesg.
Tested-by: Jeffrin Jose T <[email protected]>
--
software engineer
rajagiri school of engineering and technology - autonomous
From: Basavaraj Natikar <[email protected]>
commit aa0b724a2bf041036e56cbb3b4b3afde7c5e7c9e upstream.
Misinterpreted intr_enable field name. Hence correct the structure
field name accordingly to reflect the functionality.
Fixes: f264481ad614 ("HID: amd_sfh: Extend driver capabilities for multi-generation support")
Signed-off-by: Basavaraj Natikar <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hid/amd-sfh-hid/amd_sfh_pcie.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
@@ -49,7 +49,7 @@ union sfh_cmd_base {
} s;
struct {
u32 cmd_id : 4;
- u32 intr_enable : 1;
+ u32 intr_disable : 1;
u32 rsvd1 : 3;
u32 length : 7;
u32 mem_type : 1;
From: Takashi Iwai <[email protected]>
commit 8e1741c658996a16bd096e077dae0da2460a997f upstream.
dma_need_sync() checks each DMA address. Fix the incorrect usages
for non-contiguous and non-coherent page allocations.
Fortunately, there are no actual call sites that need manual syncs
yet.
Fixes: a25684a95646 ("ALSA: memalloc: Support for non-contiguous page allocation")
Fixes: 73325f60e2ed ("ALSA: memalloc: Support for non-coherent page allocation")
Cc: <[email protected]>
Reported-by: Ezequiel Garcia <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/core/memalloc.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -511,7 +511,8 @@ static void *snd_dma_noncontig_alloc(str
DEFAULT_GFP, 0);
if (!sgt)
return NULL;
- dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->dev.dir);
+ dmab->dev.need_sync = dma_need_sync(dmab->dev.dev,
+ sg_dma_address(sgt->sgl));
p = dma_vmap_noncontiguous(dmab->dev.dev, size, sgt);
if (p)
dmab->private_data = sgt;
@@ -625,9 +626,13 @@ static const struct snd_malloc_ops snd_d
*/
static void *snd_dma_noncoherent_alloc(struct snd_dma_buffer *dmab, size_t size)
{
- dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->dev.dir);
- return dma_alloc_noncoherent(dmab->dev.dev, size, &dmab->addr,
- dmab->dev.dir, DEFAULT_GFP);
+ void *p;
+
+ p = dma_alloc_noncoherent(dmab->dev.dev, size, &dmab->addr,
+ dmab->dev.dir, DEFAULT_GFP);
+ if (p)
+ dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->addr);
+ return p;
}
static void snd_dma_noncoherent_free(struct snd_dma_buffer *dmab)
From: Stephen Boyd <[email protected]>
commit c8d251f51ee61df06ee0e419348d8c9160bbfb86 upstream.
In commit da0363f7bfd3 ("ASoC: qcom: Fix for DMA interrupt clear reg
overwriting") we changed regmap_write() to regmap_update_bits() so that
we can avoid overwriting bits that we didn't intend to modify.
Unfortunately this change breaks the case where a register is writable
but not readable, which is exactly how the HDMI irq clear register is
designed (grep around LPASS_HDMITX_APP_IRQCLEAR_REG to see how it's
write only). That's because regmap_update_bits() tries to read the
register from the hardware and if it isn't readable it looks in the
regmap cache to see what was written there last time to compare against
what we want to write there. Eventually, we're unable to modify this
register at all because the bits that we're trying to set are already
set in the cache.
This is doubly bad for the irq clear register because you have to write
the bit to clear an interrupt. Given the irq is level triggered, we see
an interrupt storm upon plugging in an HDMI cable and starting audio
playback. The irq storm is so great that performance degrades
significantly, leading to CPU soft lockups.
Fix it by using regmap_write_bits() so that we really do write the bits
in the clear register that we want to. This brings the number of irqs
handled by lpass_dma_interrupt_handler() down from ~150k/sec to ~10/sec.
Fixes: da0363f7bfd3 ("ASoC: qcom: Fix for DMA interrupt clear reg overwriting")
Cc: Srinivasa Rao Mandadapu <[email protected]>
Cc: Srinivas Kandagatla <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/qcom/lpass-platform.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -524,7 +524,7 @@ static int lpass_platform_pcmops_trigger
return -EINVAL;
}
- ret = regmap_update_bits(map, reg_irqclr, val_irqclr, val_irqclr);
+ ret = regmap_write_bits(map, reg_irqclr, val_irqclr, val_irqclr);
if (ret) {
dev_err(soc_runtime->dev, "error writing to irqclear reg: %d\n", ret);
return ret;
@@ -665,7 +665,7 @@ static irqreturn_t lpass_dma_interrupt_h
return -EINVAL;
}
if (interrupts & LPAIF_IRQ_PER(chan)) {
- rv = regmap_update_bits(map, reg, mask, (LPAIF_IRQ_PER(chan) | val));
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_PER(chan) | val));
if (rv) {
dev_err(soc_runtime->dev,
"error writing to irqclear reg: %d\n", rv);
@@ -676,7 +676,7 @@ static irqreturn_t lpass_dma_interrupt_h
}
if (interrupts & LPAIF_IRQ_XRUN(chan)) {
- rv = regmap_update_bits(map, reg, mask, (LPAIF_IRQ_XRUN(chan) | val));
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_XRUN(chan) | val));
if (rv) {
dev_err(soc_runtime->dev,
"error writing to irqclear reg: %d\n", rv);
@@ -688,7 +688,7 @@ static irqreturn_t lpass_dma_interrupt_h
}
if (interrupts & LPAIF_IRQ_ERR(chan)) {
- rv = regmap_update_bits(map, reg, mask, (LPAIF_IRQ_ERR(chan) | val));
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_ERR(chan) | val));
if (rv) {
dev_err(soc_runtime->dev,
"error writing to irqclear reg: %d\n", rv);
From: Tom Rix <[email protected]>
commit 7e5b6a5c8c44310784c88c1c198dde79f6402f7b upstream.
Clang static analysis reports this problem
route.c:425:4: warning: Use of memory after it is freed
trace_mctp_key_acquire(key);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
When mctp_key_add() fails, key is freed but then is later
used in trace_mctp_key_acquire(). Add an else statement
to use the key only when mctp_key_add() is successful.
Fixes: 4f9e1ba6de45 ("mctp: Add tracepoints for tag/key handling")
Signed-off-by: Tom Rix <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mctp/route.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/net/mctp/route.c
+++ b/net/mctp/route.c
@@ -414,13 +414,14 @@ static int mctp_route_input(struct mctp_
* this function.
*/
rc = mctp_key_add(key, msk);
- if (rc)
+ if (rc) {
kfree(key);
+ } else {
+ trace_mctp_key_acquire(key);
- trace_mctp_key_acquire(key);
-
- /* we don't need to release key->lock on exit */
- mctp_key_unref(key);
+ /* we don't need to release key->lock on exit */
+ mctp_key_unref(key);
+ }
key = NULL;
} else {
From: Ming Lei <[email protected]>
[ Upstream commit edb854a3680bacc9ef9b91ec0c5ff6105886f6f3 ]
We currently use ->cmd_per_lun as initial queue depth for setting up the
budget_map. Martin Wilck reported that it is common for the queue_depth to
be subsequently updated in slave_configure() based on detected hardware
characteristics.
As a result, for some drivers, the static host template settings for
cmd_per_lun and can_queue won't actually get used in practice. And if the
default values are used to allocate the budget_map, memory may be consumed
unnecessarily.
Fix the issue by reallocating the budget_map after ->slave_configure()
returns. At that time the device queue_depth should accurately reflect what
the hardware needs.
Link: https://lore.kernel.org/r/[email protected]
Cc: Bart Van Assche <[email protected]>
Reported-by: Martin Wilck <[email protected]>
Suggested-by: Martin Wilck <[email protected]>
Tested-by: Martin Wilck <[email protected]>
Reviewed-by: Martin Wilck <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Ming Lei <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/scsi/scsi_scan.c | 55 ++++++++++++++++++++++++++++++++++++----
1 file changed, 50 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 23e1c0acdeaee..d0ce723299bf7 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -214,6 +214,48 @@ static void scsi_unlock_floptical(struct scsi_device *sdev,
SCSI_TIMEOUT, 3, NULL);
}
+static int scsi_realloc_sdev_budget_map(struct scsi_device *sdev,
+ unsigned int depth)
+{
+ int new_shift = sbitmap_calculate_shift(depth);
+ bool need_alloc = !sdev->budget_map.map;
+ bool need_free = false;
+ int ret;
+ struct sbitmap sb_backup;
+
+ /*
+ * realloc if new shift is calculated, which is caused by setting
+ * up one new default queue depth after calling ->slave_configure
+ */
+ if (!need_alloc && new_shift != sdev->budget_map.shift)
+ need_alloc = need_free = true;
+
+ if (!need_alloc)
+ return 0;
+
+ /*
+ * Request queue has to be frozen for reallocating budget map,
+ * and here disk isn't added yet, so freezing is pretty fast
+ */
+ if (need_free) {
+ blk_mq_freeze_queue(sdev->request_queue);
+ sb_backup = sdev->budget_map;
+ }
+ ret = sbitmap_init_node(&sdev->budget_map,
+ scsi_device_max_queue_depth(sdev),
+ new_shift, GFP_KERNEL,
+ sdev->request_queue->node, false, true);
+ if (need_free) {
+ if (ret)
+ sdev->budget_map = sb_backup;
+ else
+ sbitmap_free(&sb_backup);
+ ret = 0;
+ blk_mq_unfreeze_queue(sdev->request_queue);
+ }
+ return ret;
+}
+
/**
* scsi_alloc_sdev - allocate and setup a scsi_Device
* @starget: which target to allocate a &scsi_device for
@@ -306,11 +348,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
* default device queue depth to figure out sbitmap shift
* since we use this queue depth most of times.
*/
- if (sbitmap_init_node(&sdev->budget_map,
- scsi_device_max_queue_depth(sdev),
- sbitmap_calculate_shift(depth),
- GFP_KERNEL, sdev->request_queue->node,
- false, true)) {
+ if (scsi_realloc_sdev_budget_map(sdev, depth)) {
put_device(&starget->dev);
kfree(sdev);
goto out;
@@ -1017,6 +1055,13 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
}
return SCSI_SCAN_NO_RESPONSE;
}
+
+ /*
+ * The queue_depth is often changed in ->slave_configure.
+ * Set up budget map again since memory consumption of
+ * the map depends on actual queue depth.
+ */
+ scsi_realloc_sdev_budget_map(sdev, sdev->queue_depth);
}
if (sdev->scsi_level >= SCSI_3)
--
2.34.1
From: Maxim Levitsky <[email protected]>
commit e8efa4ff00374d2e6f47f6e4628ca3b541c001af upstream.
While usually, restoring the smm state makes the KVM enter
the nested guest thus a different vmcb (vmcb02 vs vmcb01),
KVM should still mark it as dirty, since hardware
can in theory cache multiple vmcbs.
Failure to do so, combined with lack of setting the
nested_run_pending (which is fixed in the next patch),
might make KVM re-enter vmcb01, which was just exited from,
with completely different set of guest state registers
(SMM vs non SMM) and without proper dirty bits set,
which results in the CPU reusing stale IDTR pointer
which leads to a guest shutdown on any interrupt.
On the real hardware this usually doesn't happen,
but when running nested, L0's KVM does check and
honour few dirty bits, causing this issue to happen.
This patch fixes boot of hyperv and SMM enabled
windows VM running nested on KVM.
Signed-off-by: Maxim Levitsky <[email protected]>
Cc: [email protected]
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kvm/svm/svm.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4449,6 +4449,8 @@ static int svm_leave_smm(struct kvm_vcpu
* Enter the nested guest now
*/
+ vmcb_mark_all_dirty(svm->vmcb01.ptr);
+
vmcb12 = map.hva;
nested_load_control_from_vmcb12(svm, &vmcb12->control);
ret = enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12, false);
From: Eric Dumazet <[email protected]>
commit dcd54265c8bc14bd023815e36e2d5f9d66ee1fee upstream.
trace_napi_poll_hit() is reading stat->dev while another thread can write
on it from dropmon_net_event()
Use READ_ONCE()/WRITE_ONCE() here, RCU rules are properly enforced already,
we only have to take care of load/store tearing.
BUG: KCSAN: data-race in dropmon_net_event / trace_napi_poll_hit
write to 0xffff88816f3ab9c0 of 8 bytes by task 20260 on cpu 1:
dropmon_net_event+0xb8/0x2b0 net/core/drop_monitor.c:1579
notifier_call_chain kernel/notifier.c:84 [inline]
raw_notifier_call_chain+0x53/0xb0 kernel/notifier.c:392
call_netdevice_notifiers_info net/core/dev.c:1919 [inline]
call_netdevice_notifiers_extack net/core/dev.c:1931 [inline]
call_netdevice_notifiers net/core/dev.c:1945 [inline]
unregister_netdevice_many+0x867/0xfb0 net/core/dev.c:10415
ip_tunnel_delete_nets+0x24a/0x280 net/ipv4/ip_tunnel.c:1123
vti_exit_batch_net+0x2a/0x30 net/ipv4/ip_vti.c:515
ops_exit_list net/core/net_namespace.c:173 [inline]
cleanup_net+0x4dc/0x8d0 net/core/net_namespace.c:597
process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
worker_thread+0x616/0xa70 kernel/workqueue.c:2454
kthread+0x1bf/0x1e0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
read to 0xffff88816f3ab9c0 of 8 bytes by interrupt on cpu 0:
trace_napi_poll_hit+0x89/0x1c0 net/core/drop_monitor.c:292
trace_napi_poll include/trace/events/napi.h:14 [inline]
__napi_poll+0x36b/0x3f0 net/core/dev.c:6366
napi_poll net/core/dev.c:6432 [inline]
net_rx_action+0x29e/0x650 net/core/dev.c:6519
__do_softirq+0x158/0x2de kernel/softirq.c:558
do_softirq+0xb1/0xf0 kernel/softirq.c:459
__local_bh_enable_ip+0x68/0x70 kernel/softirq.c:383
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
_raw_spin_unlock_bh+0x33/0x40 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:394 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
wg_packet_decrypt_worker+0x73c/0x780 drivers/net/wireguard/receive.c:506
process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
worker_thread+0x616/0xa70 kernel/workqueue.c:2454
kthread+0x1bf/0x1e0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
value changed: 0xffff88815883e000 -> 0x0000000000000000
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 26435 Comm: kworker/0:1 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker
Fixes: 4ea7e38696c7 ("dropmon: add ability to detect when hardware dropsrxpackets")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Neil Horman <[email protected]>
Reported-by: syzbot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/core/drop_monitor.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -280,13 +280,17 @@ static void trace_napi_poll_hit(void *ig
rcu_read_lock();
list_for_each_entry_rcu(new_stat, &hw_stats_list, list) {
+ struct net_device *dev;
+
/*
* only add a note to our monitor buffer if:
* 1) this is the dev we received on
* 2) its after the last_rx delta
* 3) our rx_dropped count has gone up
*/
- if ((new_stat->dev == napi->dev) &&
+ /* Paired with WRITE_ONCE() in dropmon_net_event() */
+ dev = READ_ONCE(new_stat->dev);
+ if ((dev == napi->dev) &&
(time_after(jiffies, new_stat->last_rx + dm_hw_check_delta)) &&
(napi->dev->stats.rx_dropped != new_stat->last_drop_val)) {
trace_drop_common(NULL, NULL);
@@ -1572,7 +1576,10 @@ static int dropmon_net_event(struct noti
mutex_lock(&net_dm_mutex);
list_for_each_entry_safe(new_stat, tmp, &hw_stats_list, list) {
if (new_stat->dev == dev) {
- new_stat->dev = NULL;
+
+ /* Paired with READ_ONCE() in trace_napi_poll_hit() */
+ WRITE_ONCE(new_stat->dev, NULL);
+
if (trace_state == TRACE_OFF) {
list_del_rcu(&new_stat->list);
kfree_rcu(new_stat, rcu);
On Mon, Feb 21, 2022 at 09:17:51AM -0800, Guenter Roeck wrote:
> On 2/21/22 00:46, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.16.11 release.
> > There are 227 patches in this series, all will be posted as a response
> > to this one. If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> > Anything received after that time might be too late.
> >
>
> Building mips:malta_defconfig ... failed
> --------------
> Error log:
> net/netfilter/xt_socket.c: In function 'socket_mt_destroy':
> net/netfilter/xt_socket.c:224:17: error: implicit declaration of function 'nf_defrag_ipv6_disable'; did you mean 'nf_defrag_ipv4_disable'? [
>
> Inherited from upstream.
Ah, fun :(
I'll leave this for now, it's "just" a Kconfig dependancy issue. Does
upstream know about it?
thanks,
greg k-h
From: Kees Cook <[email protected]>
[ Upstream commit dcb85f85fa6f142aae1fe86f399d4503d49f2b60 ]
While the stackleak plugin was already using notrace, objtool is now a
bit more picky. Update the notrace uses to noinstr. Silences the
following objtool warnings when building with:
CONFIG_DEBUG_ENTRY=y
CONFIG_STACK_VALIDATION=y
CONFIG_VMLINUX_VALIDATION=y
CONFIG_GCC_PLUGIN_STACKLEAK=y
vmlinux.o: warning: objtool: do_syscall_64()+0x9: call to stackleak_track_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_int80_syscall_32()+0x9: call to stackleak_track_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_general_protection()+0x22: call to stackleak_track_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret()+0x20: call to stackleak_track_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_machine_check()+0x27: call to stackleak_track_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: .text+0x5346e: call to stackleak_erase() leaves .noinstr.text section
vmlinux.o: warning: objtool: .entry.text+0x143: call to stackleak_erase() leaves .noinstr.text section
vmlinux.o: warning: objtool: .entry.text+0x10eb: call to stackleak_erase() leaves .noinstr.text section
vmlinux.o: warning: objtool: .entry.text+0x17f9: call to stackleak_erase() leaves .noinstr.text section
Note that the plugin's addition of calls to stackleak_track_stack() from
noinstr functions is expected to be safe, as it isn't runtime
instrumentation and is self-contained.
Cc: Alexander Popov <[email protected]>
Suggested-by: Peter Zijlstra <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/stackleak.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/stackleak.c b/kernel/stackleak.c
index ce161a8e8d975..dd07239ddff9f 100644
--- a/kernel/stackleak.c
+++ b/kernel/stackleak.c
@@ -48,7 +48,7 @@ int stack_erasing_sysctl(struct ctl_table *table, int write,
#define skip_erasing() false
#endif /* CONFIG_STACKLEAK_RUNTIME_DISABLE */
-asmlinkage void notrace stackleak_erase(void)
+asmlinkage void noinstr stackleak_erase(void)
{
/* It would be nice not to have 'kstack_ptr' and 'boundary' on stack */
unsigned long kstack_ptr = current->lowest_stack;
@@ -102,9 +102,8 @@ asmlinkage void notrace stackleak_erase(void)
/* Reset the 'lowest_stack' value for the next syscall */
current->lowest_stack = current_top_of_stack() - THREAD_SIZE/64;
}
-NOKPROBE_SYMBOL(stackleak_erase);
-void __used __no_caller_saved_registers notrace stackleak_track_stack(void)
+void __used __no_caller_saved_registers noinstr stackleak_track_stack(void)
{
unsigned long sp = current_stack_pointer;
--
2.34.1
From: Takashi Iwai <[email protected]>
commit 2a845837e3d0ddaed493b4c5c4643d7f0542804d upstream.
The recently introduced coef_mutex for Realtek codec seems causing a
deadlock when the relevant code is invoked from the power-off state;
then the HD-audio core tries to power-up internally, and this kicks
off the codec runtime PM code that tries to take the same coef_mutex.
In order to avoid the deadlock, do the temporary power up/down around
the coef_mutex acquisition and release. This assures that the
power-up sequence runs before the mutex, hence no re-entrance will
happen.
Fixes: b837a9f5ab3b ("ALSA: hda: realtek: Fix race at concurrent COEF updates")
Reported-and-tested-by: Julian Wollrath <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/20220214132838.4db10fca@schienar
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/pci/hda/patch_realtek.c | 39 ++++++++++++++++++++++++---------------
1 file changed, 24 insertions(+), 15 deletions(-)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -133,6 +133,22 @@ struct alc_spec {
* COEF access helper functions
*/
+static void coef_mutex_lock(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+
+ snd_hda_power_up_pm(codec);
+ mutex_lock(&spec->coef_mutex);
+}
+
+static void coef_mutex_unlock(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+
+ mutex_unlock(&spec->coef_mutex);
+ snd_hda_power_down_pm(codec);
+}
+
static int __alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
unsigned int coef_idx)
{
@@ -146,12 +162,11 @@ static int __alc_read_coefex_idx(struct
static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
unsigned int coef_idx)
{
- struct alc_spec *spec = codec->spec;
unsigned int val;
- mutex_lock(&spec->coef_mutex);
+ coef_mutex_lock(codec);
val = __alc_read_coefex_idx(codec, nid, coef_idx);
- mutex_unlock(&spec->coef_mutex);
+ coef_mutex_unlock(codec);
return val;
}
@@ -168,11 +183,9 @@ static void __alc_write_coefex_idx(struc
static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
unsigned int coef_idx, unsigned int coef_val)
{
- struct alc_spec *spec = codec->spec;
-
- mutex_lock(&spec->coef_mutex);
+ coef_mutex_lock(codec);
__alc_write_coefex_idx(codec, nid, coef_idx, coef_val);
- mutex_unlock(&spec->coef_mutex);
+ coef_mutex_unlock(codec);
}
#define alc_write_coef_idx(codec, coef_idx, coef_val) \
@@ -193,11 +206,9 @@ static void alc_update_coefex_idx(struct
unsigned int coef_idx, unsigned int mask,
unsigned int bits_set)
{
- struct alc_spec *spec = codec->spec;
-
- mutex_lock(&spec->coef_mutex);
+ coef_mutex_lock(codec);
__alc_update_coefex_idx(codec, nid, coef_idx, mask, bits_set);
- mutex_unlock(&spec->coef_mutex);
+ coef_mutex_unlock(codec);
}
#define alc_update_coef_idx(codec, coef_idx, mask, bits_set) \
@@ -230,9 +241,7 @@ struct coef_fw {
static void alc_process_coef_fw(struct hda_codec *codec,
const struct coef_fw *fw)
{
- struct alc_spec *spec = codec->spec;
-
- mutex_lock(&spec->coef_mutex);
+ coef_mutex_lock(codec);
for (; fw->nid; fw++) {
if (fw->mask == (unsigned short)-1)
__alc_write_coefex_idx(codec, fw->nid, fw->idx, fw->val);
@@ -240,7 +249,7 @@ static void alc_process_coef_fw(struct h
__alc_update_coefex_idx(codec, fw->nid, fw->idx,
fw->mask, fw->val);
}
- mutex_unlock(&spec->coef_mutex);
+ coef_mutex_unlock(codec);
}
/*
From: Hao Luo <[email protected]>
commit 20b2aff4bc15bda809f994761d5719827d66c0b4 upstream.
This patch introduce a flag MEM_RDONLY to tag a reg value
pointing to read-only memory. It makes the following changes:
1. PTR_TO_RDWR_BUF -> PTR_TO_BUF
2. PTR_TO_RDONLY_BUF -> PTR_TO_BUF | MEM_RDONLY
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 8 ++--
kernel/bpf/btf.c | 3 -
kernel/bpf/map_iter.c | 4 +-
kernel/bpf/verifier.c | 84 +++++++++++++++++++++++++++-------------------
net/core/bpf_sk_storage.c | 2 -
net/core/sock_map.c | 2 -
6 files changed, 60 insertions(+), 43 deletions(-)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -311,7 +311,10 @@ enum bpf_type_flag {
/* PTR may be NULL. */
PTR_MAYBE_NULL = BIT(0 + BPF_BASE_TYPE_BITS),
- __BPF_TYPE_LAST_FLAG = PTR_MAYBE_NULL,
+ /* MEM is read-only. */
+ MEM_RDONLY = BIT(1 + BPF_BASE_TYPE_BITS),
+
+ __BPF_TYPE_LAST_FLAG = MEM_RDONLY,
};
/* Max number of base types. */
@@ -492,8 +495,7 @@ enum bpf_reg_type {
* an explicit null check is required for this struct.
*/
PTR_TO_MEM, /* reg points to valid memory region */
- PTR_TO_RDONLY_BUF, /* reg points to a readonly buffer */
- PTR_TO_RDWR_BUF, /* reg points to a read/write buffer */
+ PTR_TO_BUF, /* reg points to a read/write buffer */
PTR_TO_PERCPU_BTF_ID, /* reg points to a percpu kernel variable */
PTR_TO_FUNC, /* reg points to a bpf program function */
__BPF_REG_TYPE_MAX,
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4932,8 +4932,7 @@ bool btf_ctx_access(int off, int size, e
type = base_type(ctx_arg_info->reg_type);
flag = type_flag(ctx_arg_info->reg_type);
- if (ctx_arg_info->offset == off &&
- (type == PTR_TO_RDWR_BUF || type == PTR_TO_RDONLY_BUF) &&
+ if (ctx_arg_info->offset == off && type == PTR_TO_BUF &&
(flag & PTR_MAYBE_NULL)) {
info->reg_type = ctx_arg_info->reg_type;
return true;
--- a/kernel/bpf/map_iter.c
+++ b/kernel/bpf/map_iter.c
@@ -174,9 +174,9 @@ static const struct bpf_iter_reg bpf_map
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__bpf_map_elem, key),
- PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL },
+ PTR_TO_BUF | PTR_MAYBE_NULL | MEM_RDONLY },
{ offsetof(struct bpf_iter__bpf_map_elem, value),
- PTR_TO_RDWR_BUF | PTR_MAYBE_NULL },
+ PTR_TO_BUF | PTR_MAYBE_NULL },
},
};
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -452,6 +452,11 @@ static bool reg_type_may_be_refcounted_o
base_type(type) == PTR_TO_MEM;
}
+static bool type_is_rdonly_mem(u32 type)
+{
+ return type & MEM_RDONLY;
+}
+
static bool arg_type_may_be_refcounted(enum bpf_arg_type type)
{
return type == ARG_PTR_TO_SOCK_COMMON;
@@ -527,7 +532,7 @@ static bool is_cmpxchg_insn(const struct
static const char *reg_type_str(struct bpf_verifier_env *env,
enum bpf_reg_type type)
{
- char postfix[16] = {0};
+ char postfix[16] = {0}, prefix[16] = {0};
static const char * const str[] = {
[NOT_INIT] = "?",
[SCALAR_VALUE] = "inv",
@@ -547,8 +552,7 @@ static const char *reg_type_str(struct b
[PTR_TO_BTF_ID] = "ptr_",
[PTR_TO_PERCPU_BTF_ID] = "percpu_ptr_",
[PTR_TO_MEM] = "mem",
- [PTR_TO_RDONLY_BUF] = "rdonly_buf",
- [PTR_TO_RDWR_BUF] = "rdwr_buf",
+ [PTR_TO_BUF] = "buf",
[PTR_TO_FUNC] = "func",
[PTR_TO_MAP_KEY] = "map_key",
};
@@ -561,8 +565,11 @@ static const char *reg_type_str(struct b
strncpy(postfix, "_or_null", 16);
}
- snprintf(env->type_str_buf, TYPE_STR_BUF_LEN, "%s%s",
- str[base_type(type)], postfix);
+ if (type & MEM_RDONLY)
+ strncpy(prefix, "rdonly_", 16);
+
+ snprintf(env->type_str_buf, TYPE_STR_BUF_LEN, "%s%s%s",
+ prefix, str[base_type(type)], postfix);
return env->type_str_buf;
}
@@ -2688,8 +2695,7 @@ static bool is_spillable_regtype(enum bp
case PTR_TO_TCP_SOCK:
case PTR_TO_XDP_SOCK:
case PTR_TO_BTF_ID:
- case PTR_TO_RDONLY_BUF:
- case PTR_TO_RDWR_BUF:
+ case PTR_TO_BUF:
case PTR_TO_PERCPU_BTF_ID:
case PTR_TO_MEM:
case PTR_TO_FUNC:
@@ -4442,22 +4448,28 @@ static int check_mem_access(struct bpf_v
} else if (reg->type == CONST_PTR_TO_MAP) {
err = check_ptr_to_map_access(env, regs, regno, off, size, t,
value_regno);
- } else if (reg->type == PTR_TO_RDONLY_BUF) {
- if (t == BPF_WRITE) {
- verbose(env, "R%d cannot write into %s\n",
- regno, reg_type_str(env, reg->type));
- return -EACCES;
+ } else if (base_type(reg->type) == PTR_TO_BUF) {
+ bool rdonly_mem = type_is_rdonly_mem(reg->type);
+ const char *buf_info;
+ u32 *max_access;
+
+ if (rdonly_mem) {
+ if (t == BPF_WRITE) {
+ verbose(env, "R%d cannot write into %s\n",
+ regno, reg_type_str(env, reg->type));
+ return -EACCES;
+ }
+ buf_info = "rdonly";
+ max_access = &env->prog->aux->max_rdonly_access;
+ } else {
+ buf_info = "rdwr";
+ max_access = &env->prog->aux->max_rdwr_access;
}
+
err = check_buffer_access(env, reg, regno, off, size, false,
- "rdonly",
- &env->prog->aux->max_rdonly_access);
- if (!err && value_regno >= 0)
- mark_reg_unknown(env, regs, value_regno);
- } else if (reg->type == PTR_TO_RDWR_BUF) {
- err = check_buffer_access(env, reg, regno, off, size, false,
- "rdwr",
- &env->prog->aux->max_rdwr_access);
- if (!err && t == BPF_READ && value_regno >= 0)
+ buf_info, max_access);
+
+ if (!err && value_regno >= 0 && (rdonly_mem || t == BPF_READ))
mark_reg_unknown(env, regs, value_regno);
} else {
verbose(env, "R%d invalid mem access '%s'\n", regno,
@@ -4718,8 +4730,10 @@ static int check_helper_mem_access(struc
struct bpf_call_arg_meta *meta)
{
struct bpf_reg_state *regs = cur_regs(env), *reg = ®s[regno];
+ const char *buf_info;
+ u32 *max_access;
- switch (reg->type) {
+ switch (base_type(reg->type)) {
case PTR_TO_PACKET:
case PTR_TO_PACKET_META:
return check_packet_access(env, regno, reg->off, access_size,
@@ -4738,18 +4752,20 @@ static int check_helper_mem_access(struc
return check_mem_region_access(env, regno, reg->off,
access_size, reg->mem_size,
zero_size_allowed);
- case PTR_TO_RDONLY_BUF:
- if (meta && meta->raw_mode)
- return -EACCES;
- return check_buffer_access(env, reg, regno, reg->off,
- access_size, zero_size_allowed,
- "rdonly",
- &env->prog->aux->max_rdonly_access);
- case PTR_TO_RDWR_BUF:
+ case PTR_TO_BUF:
+ if (type_is_rdonly_mem(reg->type)) {
+ if (meta && meta->raw_mode)
+ return -EACCES;
+
+ buf_info = "rdonly";
+ max_access = &env->prog->aux->max_rdonly_access;
+ } else {
+ buf_info = "rdwr";
+ max_access = &env->prog->aux->max_rdwr_access;
+ }
return check_buffer_access(env, reg, regno, reg->off,
access_size, zero_size_allowed,
- "rdwr",
- &env->prog->aux->max_rdwr_access);
+ buf_info, max_access);
case PTR_TO_STACK:
return check_stack_range_initialized(
env,
@@ -5028,8 +5044,8 @@ static const struct bpf_reg_types mem_ty
PTR_TO_MAP_KEY,
PTR_TO_MAP_VALUE,
PTR_TO_MEM,
- PTR_TO_RDONLY_BUF,
- PTR_TO_RDWR_BUF,
+ PTR_TO_BUF,
+ PTR_TO_BUF | MEM_RDONLY,
},
};
--- a/net/core/bpf_sk_storage.c
+++ b/net/core/bpf_sk_storage.c
@@ -929,7 +929,7 @@ static struct bpf_iter_reg bpf_sk_storag
{ offsetof(struct bpf_iter__bpf_sk_storage_map, sk),
PTR_TO_BTF_ID_OR_NULL },
{ offsetof(struct bpf_iter__bpf_sk_storage_map, value),
- PTR_TO_RDWR_BUF | PTR_MAYBE_NULL },
+ PTR_TO_BUF | PTR_MAYBE_NULL },
},
.seq_info = &iter_seq_info,
};
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -1569,7 +1569,7 @@ static struct bpf_iter_reg sock_map_iter
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__sockmap, key),
- PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL },
+ PTR_TO_BUF | PTR_MAYBE_NULL | MEM_RDONLY },
{ offsetof(struct bpf_iter__sockmap, sk),
PTR_TO_BTF_ID_OR_NULL },
},
From: Mark Brown <[email protected]>
commit 564778d7b1ea465f9487eedeece7527a033549c5 upstream.
When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.
Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/soc-ops.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -308,7 +308,7 @@ int snd_soc_put_volsw(struct snd_kcontro
unsigned int sign_bit = mc->sign_bit;
unsigned int mask = (1 << fls(max)) - 1;
unsigned int invert = mc->invert;
- int err;
+ int err, ret;
bool type_2r = false;
unsigned int val2 = 0;
unsigned int val, val_mask;
@@ -350,12 +350,18 @@ int snd_soc_put_volsw(struct snd_kcontro
err = snd_soc_component_update_bits(component, reg, val_mask, val);
if (err < 0)
return err;
+ ret = err;
- if (type_2r)
+ if (type_2r) {
err = snd_soc_component_update_bits(component, reg2, val_mask,
- val2);
+ val2);
+ /* Don't discard any error code or drop change flag */
+ if (ret == 0 || err < 0) {
+ ret = err;
+ }
+ }
- return err;
+ return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
From: Mario Limonciello <[email protected]>
[ Upstream commit b8fb0d9b47660ddb8a8256412784aad7cee9f21a ]
Yellow carp has been outputting versions like `1093.24.0`, but this
is supposed to be 69.24.0. That is the MSB is being interpreted
incorrectly.
The MSB is not part of the major version, but has generally been
treated that way thus far. It's actually the program, and used to
distinguish between two programs from a similar family but different
codebase.
Link: https://patchwork.freedesktop.org/patch/469993/
Signed-off-by: Mario Limonciello <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/platform/x86/amd-pmc.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 230593ae5d6de..8c74733530e3d 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -117,9 +117,10 @@ struct amd_pmc_dev {
u32 cpu_id;
u32 active_ips;
/* SMU version information */
- u16 major;
- u16 minor;
- u16 rev;
+ u8 smu_program;
+ u8 major;
+ u8 minor;
+ u8 rev;
struct device *dev;
struct mutex lock; /* generic mutex lock */
#if IS_ENABLED(CONFIG_DEBUG_FS)
@@ -166,11 +167,13 @@ static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
if (rc)
return rc;
- dev->major = (val >> 16) & GENMASK(15, 0);
+ dev->smu_program = (val >> 24) & GENMASK(7, 0);
+ dev->major = (val >> 16) & GENMASK(7, 0);
dev->minor = (val >> 8) & GENMASK(7, 0);
dev->rev = (val >> 0) & GENMASK(7, 0);
- dev_dbg(dev->dev, "SMU version is %u.%u.%u\n", dev->major, dev->minor, dev->rev);
+ dev_dbg(dev->dev, "SMU program %u version is %u.%u.%u\n",
+ dev->smu_program, dev->major, dev->minor, dev->rev);
return 0;
}
--
2.34.1
From: Ajish Koshy <[email protected]>
[ Upstream commit c26b85ea16365079be8d206b20556a60a0c69ad4 ]
Current code handles completions for SATA devices in mpi_sata_completion()
and mpi_sata_event().
However, at the time when any SATA event happens, for almost all the event
types, the command is still in the target. It is therefore incorrect to
complete the task in sata_event().
There are some events for which we get sata_completions, some need recovery
procedure and others abort. All the tasks must be completed via
sata_completion() path.
Removed the task done related code from sata_events(). For tasks where we
don't get completions, let top layer call abort() to abort the command post
timeout.
Link: https://lore.kernel.org/r/[email protected]
Acked-by: Jack Wang <[email protected]>
Co-developed-by: Viswas G <[email protected]>
Signed-off-by: Viswas G <[email protected]>
Signed-off-by: Ajish Koshy <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/scsi/pm8001/pm8001_hwi.c | 18 ------------------
drivers/scsi/pm8001/pm80xx_hwi.c | 26 --------------------------
2 files changed, 44 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 4390c8b9170cd..066290dd57565 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -2695,7 +2695,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
u32 tag = le32_to_cpu(psataPayload->tag);
u32 port_id = le32_to_cpu(psataPayload->port_id);
u32 dev_id = le32_to_cpu(psataPayload->device_id);
- unsigned long flags;
ccb = &pm8001_ha->ccb_info[tag];
@@ -2735,8 +2734,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_DATA_OVERRUN;
ts->residual = 0;
- if (pm8001_dev)
- atomic_dec(&pm8001_dev->running_req);
break;
case IO_XFER_ERROR_BREAK:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
@@ -2778,7 +2775,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_QUEUE_FULL;
- pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
return;
}
break;
@@ -2864,20 +2860,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
ts->stat = SAS_OPEN_TO;
break;
}
- spin_lock_irqsave(&t->task_state_lock, flags);
- t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
- t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
- t->task_state_flags |= SAS_TASK_STATE_DONE;
- if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
- pm8001_dbg(pm8001_ha, FAIL,
- "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
- t, event, ts->resp, ts->stat);
- pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
- } else {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
- pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
- }
}
/*See the comments for mpi_ssp_completion */
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 4c5b945bf3187..885bc9e71ff64 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2828,7 +2828,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha,
u32 tag = le32_to_cpu(psataPayload->tag);
u32 port_id = le32_to_cpu(psataPayload->port_id);
u32 dev_id = le32_to_cpu(psataPayload->device_id);
- unsigned long flags;
ccb = &pm8001_ha->ccb_info[tag];
@@ -2866,8 +2865,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha,
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_DATA_OVERRUN;
ts->residual = 0;
- if (pm8001_dev)
- atomic_dec(&pm8001_dev->running_req);
break;
case IO_XFER_ERROR_BREAK:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
@@ -2916,11 +2913,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha,
IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_QUEUE_FULL;
- spin_unlock_irqrestore(&circularQ->oq_lock,
- circularQ->lock_flags);
- pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
- spin_lock_irqsave(&circularQ->oq_lock,
- circularQ->lock_flags);
return;
}
break;
@@ -3020,24 +3012,6 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha,
ts->stat = SAS_OPEN_TO;
break;
}
- spin_lock_irqsave(&t->task_state_lock, flags);
- t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
- t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
- t->task_state_flags |= SAS_TASK_STATE_DONE;
- if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
- pm8001_dbg(pm8001_ha, FAIL,
- "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
- t, event, ts->resp, ts->stat);
- pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
- } else {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
- spin_unlock_irqrestore(&circularQ->oq_lock,
- circularQ->lock_flags);
- pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
- spin_lock_irqsave(&circularQ->oq_lock,
- circularQ->lock_flags);
- }
}
/*See the comments for mpi_ssp_completion */
--
2.34.1
From: Srinivas Pandruvada <[email protected]>
[ Upstream commit 17da2d5f93692086dd096a975225ffd5622d0bf8 ]
As reported:
[ 256.104522] ======================================================
[ 256.113783] WARNING: possible circular locking dependency detected
[ 256.120093] 5.16.0-rc6-yocto-standard+ #99 Not tainted
[ 256.125362] ------------------------------------------------------
[ 256.131673] intel-speed-sel/844 is trying to acquire lock:
[ 256.137290] ffffffffc036f0d0 (punit_misc_dev_lock){+.+.}-{3:3}, at: isst_if_open+0x18/0x90 [isst_if_common]
[ 256.147171]
[ 256.147171] but task is already holding lock:
[ 256.153135] ffffffff8ee7cb50 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x2a/0x170
[ 256.160407]
[ 256.160407] which lock already depends on the new lock.
[ 256.160407]
[ 256.168712]
[ 256.168712] the existing dependency chain (in reverse order) is:
[ 256.176327]
[ 256.176327] -> #1 (misc_mtx){+.+.}-{3:3}:
[ 256.181946] lock_acquire+0x1e6/0x330
[ 256.186265] __mutex_lock+0x9b/0x9b0
[ 256.190497] mutex_lock_nested+0x1b/0x20
[ 256.195075] misc_register+0x32/0x1a0
[ 256.199390] isst_if_cdev_register+0x65/0x180 [isst_if_common]
[ 256.205878] isst_if_probe+0x144/0x16e [isst_if_mmio]
...
[ 256.241976]
[ 256.241976] -> #0 (punit_misc_dev_lock){+.+.}-{3:3}:
[ 256.248552] validate_chain+0xbc6/0x1750
[ 256.253131] __lock_acquire+0x88c/0xc10
[ 256.257618] lock_acquire+0x1e6/0x330
[ 256.261933] __mutex_lock+0x9b/0x9b0
[ 256.266165] mutex_lock_nested+0x1b/0x20
[ 256.270739] isst_if_open+0x18/0x90 [isst_if_common]
[ 256.276356] misc_open+0x100/0x170
[ 256.280409] chrdev_open+0xa5/0x1e0
...
The call sequence suggested that misc_device /dev file can be opened
before misc device is yet to be registered, which is done only once.
Here punit_misc_dev_lock was used as common lock, to protect the
registration by multiple ISST HW drivers, one time setup, prevent
duplicate registry of misc device and prevent load/unload when device
is open.
We can split into locks:
- One which just prevent duplicate call to misc_register() and one
time setup. Also never call again if the misc_register() failed or
required one time setup is failed. This lock is not shared with
any misc device callbacks.
- The other lock protects registry, load and unload of HW drivers.
Sequence in isst_if_cdev_register()
- Register callbacks under punit_misc_dev_open_lock
- Call isst_misc_reg() which registers misc_device on the first
registry which is under punit_misc_dev_reg_lock, which is not
shared with callbacks.
Sequence in isst_if_cdev_unregister
Just opposite of isst_if_cdev_register
Reported-and-tested-by: Liwei Song <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
.../intel/speed_select_if/isst_if_common.c | 97 ++++++++++++-------
1 file changed, 63 insertions(+), 34 deletions(-)
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
index c9a85eb2e8600..e8424e70d81d2 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
@@ -596,7 +596,10 @@ static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
return ret;
}
-static DEFINE_MUTEX(punit_misc_dev_lock);
+/* Lock to prevent module registration when already opened by user space */
+static DEFINE_MUTEX(punit_misc_dev_open_lock);
+/* Lock to allow one share misc device for all ISST interace */
+static DEFINE_MUTEX(punit_misc_dev_reg_lock);
static int misc_usage_count;
static int misc_device_ret;
static int misc_device_open;
@@ -606,7 +609,7 @@ static int isst_if_open(struct inode *inode, struct file *file)
int i, ret = 0;
/* Fail open, if a module is going away */
- mutex_lock(&punit_misc_dev_lock);
+ mutex_lock(&punit_misc_dev_open_lock);
for (i = 0; i < ISST_IF_DEV_MAX; ++i) {
struct isst_if_cmd_cb *cb = &punit_callbacks[i];
@@ -628,7 +631,7 @@ static int isst_if_open(struct inode *inode, struct file *file)
} else {
misc_device_open++;
}
- mutex_unlock(&punit_misc_dev_lock);
+ mutex_unlock(&punit_misc_dev_open_lock);
return ret;
}
@@ -637,7 +640,7 @@ static int isst_if_relase(struct inode *inode, struct file *f)
{
int i;
- mutex_lock(&punit_misc_dev_lock);
+ mutex_lock(&punit_misc_dev_open_lock);
misc_device_open--;
for (i = 0; i < ISST_IF_DEV_MAX; ++i) {
struct isst_if_cmd_cb *cb = &punit_callbacks[i];
@@ -645,7 +648,7 @@ static int isst_if_relase(struct inode *inode, struct file *f)
if (cb->registered)
module_put(cb->owner);
}
- mutex_unlock(&punit_misc_dev_lock);
+ mutex_unlock(&punit_misc_dev_open_lock);
return 0;
}
@@ -662,6 +665,43 @@ static struct miscdevice isst_if_char_driver = {
.fops = &isst_if_char_driver_ops,
};
+static int isst_misc_reg(void)
+{
+ mutex_lock(&punit_misc_dev_reg_lock);
+ if (misc_device_ret)
+ goto unlock_exit;
+
+ if (!misc_usage_count) {
+ misc_device_ret = isst_if_cpu_info_init();
+ if (misc_device_ret)
+ goto unlock_exit;
+
+ misc_device_ret = misc_register(&isst_if_char_driver);
+ if (misc_device_ret) {
+ isst_if_cpu_info_exit();
+ goto unlock_exit;
+ }
+ }
+ misc_usage_count++;
+
+unlock_exit:
+ mutex_unlock(&punit_misc_dev_reg_lock);
+
+ return misc_device_ret;
+}
+
+static void isst_misc_unreg(void)
+{
+ mutex_lock(&punit_misc_dev_reg_lock);
+ if (misc_usage_count)
+ misc_usage_count--;
+ if (!misc_usage_count && !misc_device_ret) {
+ misc_deregister(&isst_if_char_driver);
+ isst_if_cpu_info_exit();
+ }
+ mutex_unlock(&punit_misc_dev_reg_lock);
+}
+
/**
* isst_if_cdev_register() - Register callback for IOCTL
* @device_type: The device type this callback handling.
@@ -679,38 +719,31 @@ static struct miscdevice isst_if_char_driver = {
*/
int isst_if_cdev_register(int device_type, struct isst_if_cmd_cb *cb)
{
- if (misc_device_ret)
- return misc_device_ret;
+ int ret;
if (device_type >= ISST_IF_DEV_MAX)
return -EINVAL;
- mutex_lock(&punit_misc_dev_lock);
+ mutex_lock(&punit_misc_dev_open_lock);
+ /* Device is already open, we don't want to add new callbacks */
if (misc_device_open) {
- mutex_unlock(&punit_misc_dev_lock);
+ mutex_unlock(&punit_misc_dev_open_lock);
return -EAGAIN;
}
- if (!misc_usage_count) {
- int ret;
-
- misc_device_ret = misc_register(&isst_if_char_driver);
- if (misc_device_ret)
- goto unlock_exit;
-
- ret = isst_if_cpu_info_init();
- if (ret) {
- misc_deregister(&isst_if_char_driver);
- misc_device_ret = ret;
- goto unlock_exit;
- }
- }
memcpy(&punit_callbacks[device_type], cb, sizeof(*cb));
punit_callbacks[device_type].registered = 1;
- misc_usage_count++;
-unlock_exit:
- mutex_unlock(&punit_misc_dev_lock);
+ mutex_unlock(&punit_misc_dev_open_lock);
- return misc_device_ret;
+ ret = isst_misc_reg();
+ if (ret) {
+ /*
+ * No need of mutex as the misc device register failed
+ * as no one can open device yet. Hence no contention.
+ */
+ punit_callbacks[device_type].registered = 0;
+ return ret;
+ }
+ return 0;
}
EXPORT_SYMBOL_GPL(isst_if_cdev_register);
@@ -725,16 +758,12 @@ EXPORT_SYMBOL_GPL(isst_if_cdev_register);
*/
void isst_if_cdev_unregister(int device_type)
{
- mutex_lock(&punit_misc_dev_lock);
- misc_usage_count--;
+ isst_misc_unreg();
+ mutex_lock(&punit_misc_dev_open_lock);
punit_callbacks[device_type].registered = 0;
if (device_type == ISST_IF_DEV_MBOX)
isst_delete_hash();
- if (!misc_usage_count && !misc_device_ret) {
- misc_deregister(&isst_if_char_driver);
- isst_if_cpu_info_exit();
- }
- mutex_unlock(&punit_misc_dev_lock);
+ mutex_unlock(&punit_misc_dev_open_lock);
}
EXPORT_SYMBOL_GPL(isst_if_cdev_unregister);
--
2.34.1
From: Eric W. Biederman <[email protected]>
commit 0cbae9e24fa7d6c6e9f828562f084da82217a0c5 upstream.
While examining is_ucounts_overlimit and reading the various messages
I realized that is_ucounts_overlimit fails to deal with counts that
may have wrapped.
Being wrapped should be a transitory state for counts and they should
never be wrapped for long, but it can happen so handle it.
Cc: [email protected]
Fixes: 21d1c5e386bc ("Reimplement RLIMIT_NPROC on top of ucounts")
Link: https://lkml.kernel.org/r/[email protected]
Reviewed-by: Shuah Khan <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/ucount.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -350,7 +350,8 @@ bool is_ucounts_overlimit(struct ucounts
if (rlimit > LONG_MAX)
max = LONG_MAX;
for (iter = ucounts; iter; iter = iter->ns->ucounts) {
- if (get_ucounts_value(iter, type) > max)
+ long val = get_ucounts_value(iter, type);
+ if (val < 0 || val > max)
return true;
max = READ_ONCE(iter->ns->ucount_max[type]);
}
From: Namjae Jeon <[email protected]>
[ Upstream commit 04e260948a160d3b7d622bf4c8a96fa4577c09bd ]
When checking smb2 query directory packets from other servers,
OutputBufferLength is different with ksmbd. Other servers add an unaligned
next offset to OutputBufferLength for the last entry.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
fs/ksmbd/smb2pdu.c | 7 ++++---
fs/ksmbd/vfs.h | 1 +
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index 1ff1e52f398fc..cbbbccdc5a0a5 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -3423,9 +3423,9 @@ static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level,
goto free_conv_name;
}
- struct_sz = readdir_info_level_struct_sz(info_level);
- next_entry_offset = ALIGN(struct_sz - 1 + conv_len,
- KSMBD_DIR_INFO_ALIGNMENT);
+ struct_sz = readdir_info_level_struct_sz(info_level) - 1 + conv_len;
+ next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT);
+ d_info->last_entry_off_align = next_entry_offset - struct_sz;
if (next_entry_offset > d_info->out_buf_len) {
d_info->out_buf_len = 0;
@@ -3977,6 +3977,7 @@ int smb2_query_dir(struct ksmbd_work *work)
((struct file_directory_info *)
((char *)rsp->Buffer + d_info.last_entry_offset))
->NextEntryOffset = 0;
+ d_info.data_count -= d_info.last_entry_off_align;
rsp->StructureSize = cpu_to_le16(9);
rsp->OutputBufferOffset = cpu_to_le16(72);
diff --git a/fs/ksmbd/vfs.h b/fs/ksmbd/vfs.h
index adf94a4f22fa6..8c37aaf936ab1 100644
--- a/fs/ksmbd/vfs.h
+++ b/fs/ksmbd/vfs.h
@@ -47,6 +47,7 @@ struct ksmbd_dir_info {
int last_entry_offset;
bool hide_dot_file;
int flags;
+ int last_entry_off_align;
};
struct ksmbd_readdir_data {
--
2.34.1
From: JaeSang Yoo <[email protected]>
[ Upstream commit 3203ce39ac0b2a57a84382ec184c7d4a0bede175 ]
The kernel parameter "tp_printk_stop_on_boot" starts with "tp_printk" which is
the same as another kernel parameter "tp_printk". If "tp_printk" setup is
called before the "tp_printk_stop_on_boot", it will override the latter
and keep it from being set.
This is similar to other kernel parameter issues, such as:
Commit 745a600cf1a6 ("um: console: Ignore console= option")
or init/do_mounts.c:45 (setup function of "ro" kernel param)
Fix it by checking for a "_" right after the "tp_printk" and if that
exists do not process the parameter.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: JaeSang Yoo <[email protected]>
[ Fixed up change log and added space after if condition ]
Signed-off-by: Steven Rostedt (Google) <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/trace/trace.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ae9f9e4af9314..bb15059020445 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -252,6 +252,10 @@ __setup("trace_clock=", set_trace_boot_clock);
static int __init set_tracepoint_printk(char *str)
{
+ /* Ignore the "tp_printk_stop_on_boot" param */
+ if (*str == '_')
+ return 0;
+
if ((strcmp(str, "=0") != 0 && strcmp(str, "=off") != 0))
tracepoint_printk = 1;
return 1;
--
2.34.1
From: Mario Limonciello <[email protected]>
[ Upstream commit 04ef860469fda6a646dc841190d05b31fae68e8c ]
This will cause misconfigured systems to not run the GPU suspend
routines.
* In APUs that are properly configured system will go into s2idle.
* In APUs that are intended to be S3 but user selects
s2idle the GPU will stay fully powered for the suspend.
* In APUs that are intended to be s2idle and system misconfigured
the GPU will stay fully powered for the suspend.
* In systems that are intended to be s2idle, but AMD dGPU is also
present, the dGPU will go through S3
Signed-off-by: Mario Limonciello <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index c811161ce9f09..ab3851c26f71c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2236,6 +2236,7 @@ static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work)
static int amdgpu_pmops_prepare(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = drm_to_adev(drm_dev);
/* Return a positive number here so
* DPM_FLAG_SMART_SUSPEND works properly
@@ -2243,6 +2244,13 @@ static int amdgpu_pmops_prepare(struct device *dev)
if (amdgpu_device_supports_boco(drm_dev))
return pm_runtime_suspended(dev);
+ /* if we will not support s3 or s2i for the device
+ * then skip suspend
+ */
+ if (!amdgpu_acpi_is_s0ix_active(adev) &&
+ !amdgpu_acpi_is_s3_active(adev))
+ return 1;
+
return 0;
}
--
2.34.1
From: Duoming Zhou <[email protected]>
[ Upstream commit 4e0f718daf97d47cf7dec122da1be970f145c809 ]
The previous commit 1ade48d0c27d ("ax25: NPD bug when detaching
AX25 device") introduce lock_sock() into ax25_kill_by_device to
prevent NPD bug. But the concurrency NPD or UAF bug will occur,
when lock_sock() or release_sock() dereferences the ax25_cb->sock.
The NULL pointer dereference bug can be shown as below:
ax25_kill_by_device() | ax25_release()
| ax25_destroy_socket()
| ax25_cb_del()
... | ...
| ax25->sk=NULL;
lock_sock(s->sk); //(1) |
s->ax25_dev = NULL; | ...
release_sock(s->sk); //(2) |
... |
The root cause is that the sock is set to null before dereference
site (1) or (2). Therefore, this patch extracts the ax25_cb->sock
in advance, and uses ax25_list_lock to protect it, which can synchronize
with ax25_cb_del() and ensure the value of sock is not null before
dereference sites.
The concurrency UAF bug can be shown as below:
ax25_kill_by_device() | ax25_release()
| ax25_destroy_socket()
... | ...
| sock_put(sk); //FREE
lock_sock(s->sk); //(1) |
s->ax25_dev = NULL; | ...
release_sock(s->sk); //(2) |
... |
The root cause is that the sock is released before dereference
site (1) or (2). Therefore, this patch uses sock_hold() to increase
the refcount of sock and uses ax25_list_lock to protect it, which
can synchronize with ax25_cb_del() in ax25_destroy_socket() and
ensure the sock wil not be released before dereference sites.
Signed-off-by: Duoming Zhou <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
net/ax25/af_ax25.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 02f43f3e2c564..44a8730c26acc 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -77,6 +77,7 @@ static void ax25_kill_by_device(struct net_device *dev)
{
ax25_dev *ax25_dev;
ax25_cb *s;
+ struct sock *sk;
if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
return;
@@ -85,13 +86,15 @@ static void ax25_kill_by_device(struct net_device *dev)
again:
ax25_for_each(s, &ax25_list) {
if (s->ax25_dev == ax25_dev) {
+ sk = s->sk;
+ sock_hold(sk);
spin_unlock_bh(&ax25_list_lock);
- lock_sock(s->sk);
+ lock_sock(sk);
s->ax25_dev = NULL;
- release_sock(s->sk);
+ release_sock(sk);
ax25_disconnect(s, ENETUNREACH);
spin_lock_bh(&ax25_list_lock);
-
+ sock_put(sk);
/* The entry could have been deleted from the
* list meanwhile and thus the next pointer is
* no longer valid. Play it safe and restart
--
2.34.1
From: Trond Myklebust <[email protected]>
commit e0caaf75d443e02e55e146fd75fe2efc8aed5540 upstream.
Commit ac795161c936 (NFSv4: Handle case where the lookup of a directory
fails) [1], part of Linux since 5.17-rc2, introduced a regression, where
a symbolic link on an NFS mount to a directory on another NFS does not
resolve(?) the first time it is accessed:
Reported-by: Paul Menzel <[email protected]>
Fixes: ac795161c936 ("NFSv4: Handle case where the lookup of a directory fails")
Signed-off-by: Trond Myklebust <[email protected]>
Tested-by: Donald Buczek <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfs/dir.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1982,14 +1982,14 @@ no_open:
if (!res) {
inode = d_inode(dentry);
if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
- !S_ISDIR(inode->i_mode))
+ !(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
res = ERR_PTR(-ENOTDIR);
else if (inode && S_ISREG(inode->i_mode))
res = ERR_PTR(-EOPENSTALE);
} else if (!IS_ERR(res)) {
inode = d_inode(res);
if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
- !S_ISDIR(inode->i_mode)) {
+ !(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) {
dput(res);
res = ERR_PTR(-ENOTDIR);
} else if (inode && S_ISREG(inode->i_mode)) {
hallo Greg
5.16.11-rc1
compiles, boots and runs on my x86_64
(Intel i5-11400, Fedora 35)
Thanks
Tested-by: Ronald Warsow <[email protected]>
------------------------------------------------------------------------
regards
Ronald
From: Phil Elwell <[email protected]>
commit 665408f4c3a5c83e712871daa062721624b2b79e upstream.
The call to brcm_alt_fw_path in brcmf_fw_get_firmwares is not protected
by a check to the validity of the fwctx->req->board_type pointer. This
results in a crash in strlcat when, for example, the WLAN chip is found
in a USB dongle.
Prevent the crash by adding the necessary check.
See: https://github.com/raspberrypi/linux/issues/4833
Fixes: 5ff013914c62 ("brcmfmac: firmware: Allow per-board firmware binaries")
Signed-off-by: Phil Elwell <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -693,7 +693,7 @@ int brcmf_fw_get_firmwares(struct device
{
struct brcmf_fw_item *first = &req->items[0];
struct brcmf_fw *fwctx;
- char *alt_path;
+ char *alt_path = NULL;
int ret;
brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev));
@@ -712,7 +712,9 @@ int brcmf_fw_get_firmwares(struct device
fwctx->done = fw_cb;
/* First try alternative board-specific path if any */
- alt_path = brcm_alt_fw_path(first->path, fwctx->req->board_type);
+ if (fwctx->req->board_type)
+ alt_path = brcm_alt_fw_path(first->path,
+ fwctx->req->board_type);
if (alt_path) {
ret = request_firmware_nowait(THIS_MODULE, true, alt_path,
fwctx->dev, GFP_KERNEL, fwctx,
On 2/21/22 1:46 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
Compiled and booted on my test system. No dmesg regressions.
Tested-by: Shuah Khan <[email protected]>
thanks,
-- Shuah
From: Miaoqian Lin <[email protected]>
[ Upstream commit ba1b71b008e97fd747845ff3a818420b11bbe830 ]
If of_find_device_by_node() succeeds, ingenic_ecc_get() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling.
Fixes: 15de8c6efd0e ("mtd: rawnand: ingenic: Separate top-level and SoC specific code")
Signed-off-by: Miaoqian Lin <[email protected]>
Reviewed-by: Paul Cercueil <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/mtd/nand/raw/ingenic/ingenic_ecc.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
index efe0ffe4f1abc..9054559e52dda 100644
--- a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
+++ b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
@@ -68,9 +68,14 @@ static struct ingenic_ecc *ingenic_ecc_get(struct device_node *np)
struct ingenic_ecc *ecc;
pdev = of_find_device_by_node(np);
- if (!pdev || !platform_get_drvdata(pdev))
+ if (!pdev)
return ERR_PTR(-EPROBE_DEFER);
+ if (!platform_get_drvdata(pdev)) {
+ put_device(&pdev->dev);
+ return ERR_PTR(-EPROBE_DEFER);
+ }
+
ecc = platform_get_drvdata(pdev);
clk_prepare_enable(ecc->clk);
--
2.34.1
From: Hangbin Liu <[email protected]>
commit 2e71ec1a725a794a16e3862791ed43fe5ba6a06b upstream.
When the nft_concat_range test failed, it exit 1 in the code
specifically.
But when part of, or all of the test passed, it will failed the
[ ${passed} -eq 0 ] check and thus exit with 1, which is the same
exit value with failure result. Fix it by exit 0 when passed is not 0.
Fixes: 611973c1e06f ("selftests: netfilter: Introduce tests for sets with range concatenation")
Signed-off-by: Hangbin Liu <[email protected]>
Reviewed-by: Stefano Brivio <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/testing/selftests/netfilter/nft_concat_range.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/netfilter/nft_concat_range.sh
+++ b/tools/testing/selftests/netfilter/nft_concat_range.sh
@@ -1601,4 +1601,4 @@ for name in ${TESTS}; do
done
done
-[ ${passed} -eq 0 ] && exit ${KSELFTEST_SKIP}
+[ ${passed} -eq 0 ] && exit ${KSELFTEST_SKIP} || exit 0
From: Mario Limonciello <[email protected]>
[ Upstream commit d6ebb17ccc7b37872a32bc25b4a21f1e5af8c7e3 ]
Testing on various upcoming OEM systems shows commit 7b167c4cb48e ("ACPI:
PM: Only mark EC GPE for wakeup on Intel systems") was short
sighted and the symptoms were indicative of other problems. Some OEMs
do have the dedicated GPIOs for the power button but also rely upon
an interrupt to the EC SCI to let the lid work.
The original commit showed spurious activity on Lenovo systems:
* On both Lenovo T14 and P14s the keyboard wakeup doesn't work, and
sometimes the power button event doesn't work.
This was confirmed on my end at that time.
However further development in the kernel showed that the issue was
actually the IRQ for the GPIO controller was also shared with the EC SCI.
This was actually fixed by commit 2d54067fcd23 ("pinctrl: amd: Fix
wakeups when IRQ is shared with SCI").
The original commit also showed problems with AC adapter:
* On HP 635 G7 detaching or attaching AC during suspend will cause
the system not to wakeup
* On Asus vivobook to prevent detaching AC causing resume problems
* On Lenovo 14ARE05 to prevent detaching AC causing resume problems
* On HP ENVY x360 to prevent detaching AC causing resume problems
Detaching AC adapter causing problems appears to have been a problem
because the EC SCI went off to notify the OS of the power adapter change
but the SCI was ignored and there was no other way to wake up this system
since GPIO controller wasn't properly enabled. The wakeups were fixed by
enabling the GPIO controller in commit acd47b9f28e5 ("pinctrl: amd: Handle
wake-up interrupt").
I've confirmed on a variety of OEM notebooks with the following test
1) echo 1 | sudo tee /sys/power/pm_debug_messages
2) sudo systemctl suspend
3) unplug AC adapter, make sure system is still asleep
4) wake system from lid (which is provided by ACPI SCI on some of them)
5) dmesg
a) see the EC GPE dispatched, timekeeping for X seconds (matching ~time
until AC adapter plug out)
b) see timekeeping for Y seconds until woke (matching ~time from AC
adapter until lid event)
6) Look at /sys/kernel/debug/amd_pmc/s0ix_stats
"Time (in us) in S0i3" = X + Y - firmware processing time
Signed-off-by: Mario Limonciello <[email protected]>
Tested-by: Kai-Heng Feng <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/acpi/x86/s2idle.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index 1c48358b43ba3..e0185e841b2a3 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -424,15 +424,11 @@ static int lps0_device_attach(struct acpi_device *adev,
mem_sleep_current = PM_SUSPEND_TO_IDLE;
/*
- * Some Intel based LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U don't
- * use intel-hid or intel-vbtn but require the EC GPE to be enabled while
- * suspended for certain wakeup devices to work, so mark it as wakeup-capable.
- *
- * Only enable on !AMD as enabling this universally causes problems for a number
- * of AMD based systems.
+ * Some LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U, require the
+ * EC GPE to be enabled while suspended for certain wakeup devices to
+ * work, so mark it as wakeup-capable.
*/
- if (!acpi_s2idle_vendor_amd())
- acpi_ec_mark_gpe_for_wake();
+ acpi_ec_mark_gpe_for_wake();
return 0;
}
--
2.34.1
From: Ville Syrjälä <[email protected]>
commit 698bef8ff5d2edea5d1c9d6e5adf1bfed1e8a106 upstream.
Apparently I totally fumbled the loop condition when I
removed the ARRAY_SIZE() stuff from the dbuf slice config
lookup. Comparing the loop index with the active_pipes bitmask
is utter nonsense, what we want to do is check to see if the
mask is zero or not.
Note that the code actually ended up working correctly despite
the fumble, up until commit eef173954432 ("drm/i915: Allow
!join_mbus cases for adlp+ dbuf configuration") when things
broke for real.
Cc: [email protected]
Fixes: 05e8155afe35 ("drm/i915: Use a sentinel to terminate the dbuf slice arrays")
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Jani Nikula <[email protected]>
(cherry picked from commit a28fde308c3c1c174249ff9559b57f24e6850086)
Signed-off-by: Tvrtko Ursulin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/intel_pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4860,7 +4860,7 @@ static u8 compute_dbuf_slices(enum pipe
{
int i;
- for (i = 0; i < dbuf_slices[i].active_pipes; i++) {
+ for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
if (dbuf_slices[i].active_pipes == active_pipes &&
dbuf_slices[i].join_mbus == join_mbus)
return dbuf_slices[i].dbuf_mask[pipe];
From: Sagi Grimberg <[email protected]>
[ Upstream commit b6bb1722f34bbdbabed27acdceaf585d300c5fd2 ]
While nvme_rdma_submit_async_event_work is checking the ctrl and queue
state before preparing the AER command and scheduling io_work, in order
to fully prevent a race where this check is not reliable the error
recovery work must flush async_event_work before continuing to destroy
the admin queue after setting the ctrl state to RESETTING such that
there is no race .submit_async_event and the error recovery handler
itself changing the ctrl state.
Signed-off-by: Sagi Grimberg <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/nvme/host/rdma.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 850f84d204d05..9c55e4be8a398 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1200,6 +1200,7 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
struct nvme_rdma_ctrl, err_work);
nvme_stop_keep_alive(&ctrl->ctrl);
+ flush_work(&ctrl->ctrl.async_event_work);
nvme_rdma_teardown_io_queues(ctrl, false);
nvme_start_queues(&ctrl->ctrl);
nvme_rdma_teardown_admin_queue(ctrl, false);
--
2.34.1
From: Eric W. Biederman <[email protected]>
commit c923a8e7edb010da67424077cbf1a6f1396ebd2e upstream.
During set*id() which cred->ucounts to charge the the current process
to is not known until after set_cred_ucounts. So move the
RLIMIT_NPROC checking into a new helper flag_nproc_exceeded and call
flag_nproc_exceeded after set_cred_ucounts.
This is very much an arbitrary subset of the places where we currently
change the RLIMIT_NPROC accounting, designed to preserve the existing
logic.
Fixing the existing logic will be the subject of another series of
changes.
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 21d1c5e386bc ("Reimplement RLIMIT_NPROC on top of ucounts")
Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/sys.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -472,6 +472,16 @@ static int set_user(struct cred *new)
if (!new_user)
return -EAGAIN;
+ free_uid(new->user);
+ new->user = new_user;
+ return 0;
+}
+
+static void flag_nproc_exceeded(struct cred *new)
+{
+ if (new->ucounts == current_ucounts())
+ return;
+
/*
* We don't fail in case of NPROC limit excess here because too many
* poorly written programs don't check set*uid() return code, assuming
@@ -480,14 +490,10 @@ static int set_user(struct cred *new)
* failure to the execve() stage.
*/
if (is_ucounts_overlimit(new->ucounts, UCOUNT_RLIMIT_NPROC, rlimit(RLIMIT_NPROC)) &&
- new_user != INIT_USER)
+ new->user != INIT_USER)
current->flags |= PF_NPROC_EXCEEDED;
else
current->flags &= ~PF_NPROC_EXCEEDED;
-
- free_uid(new->user);
- new->user = new_user;
- return 0;
}
/*
@@ -562,6 +568,7 @@ long __sys_setreuid(uid_t ruid, uid_t eu
if (retval < 0)
goto error;
+ flag_nproc_exceeded(new);
return commit_creds(new);
error:
@@ -624,6 +631,7 @@ long __sys_setuid(uid_t uid)
if (retval < 0)
goto error;
+ flag_nproc_exceeded(new);
return commit_creds(new);
error:
@@ -703,6 +711,7 @@ long __sys_setresuid(uid_t ruid, uid_t e
if (retval < 0)
goto error;
+ flag_nproc_exceeded(new);
return commit_creds(new);
error:
From: Anders Roxell <[email protected]>
commit fe663df7825811358531dc2e8a52d9eaa5e3515e upstream.
Building tinyconfig with gcc (Debian 11.2.0-16) and assembler (Debian
2.37.90.20220207) the following build error shows up:
{standard input}: Assembler messages:
{standard input}:2088: Error: unrecognized opcode: `ptesync'
make[3]: *** [/builds/linux/scripts/Makefile.build:287: arch/powerpc/lib/sstep.o] Error 1
Add the 'ifdef CONFIG_PPC64' around the 'ptesync' in function
'emulate_update_regs()' to like it is in 'analyse_instr()'. Since it looks like
it got dropped inadvertently by commit 3cdfcbfd32b9 ("powerpc: Change
analyse_instr so it doesn't modify *regs").
A key detail is that analyse_instr() will never recognise lwsync or
ptesync on 32-bit (because of the existing ifdef), and as a result
emulate_update_regs() should never be called with an op specifying
either of those on 32-bit. So removing them from emulate_update_regs()
should be a nop in terms of runtime behaviour.
Fixes: 3cdfcbfd32b9 ("powerpc: Change analyse_instr so it doesn't modify *regs")
Cc: [email protected] # v4.14+
Suggested-by: Arnd Bergmann <[email protected]>
Signed-off-by: Anders Roxell <[email protected]>
[mpe: Add last paragraph of change log mentioning analyse_instr() details]
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/powerpc/lib/sstep.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -3264,12 +3264,14 @@ void emulate_update_regs(struct pt_regs
case BARRIER_EIEIO:
eieio();
break;
+#ifdef CONFIG_PPC64
case BARRIER_LWSYNC:
asm volatile("lwsync" : : : "memory");
break;
case BARRIER_PTESYNC:
asm volatile("ptesync" : : : "memory");
break;
+#endif
}
break;
From: Miri Korenblit <[email protected]>
commit 973f02c932b0be41a26bb9bdf38b7b92721611d2 upstream.
There are a couple of bugs in this function:
1. It is declared as a non-static function, even though
it's only used in one file.
2. Its return value should be of type u32 but it returns
(in some cases) -1.
Fix them by making this function static and returning an
error value of type unsigned.
In addition, we're assigning the return value of this function
as the legacy rate even if the function returned an error value.
Fix this by assigning the lowest rate in this case.
Signed-off-by: Miri Korenblit <[email protected]>
Reported-by: Ye Guojin <[email protected]>
Reported-by: Zeal Robot <[email protected]>
Fixes: 9998f81e4ba5 ("iwlwifi: mvm: convert old rate & flags to the new format.")
Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/iwlwifi.20220128142706.5612eeb9d6d0.I992e10d93fc22919b2bc42daad087ee1b5d6f014@changeid
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/intel/iwlwifi/fw/api/rs.h | 1
drivers/net/wireless/intel/iwlwifi/fw/rs.c | 33 +++++++++++++------------
2 files changed, 18 insertions(+), 16 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
@@ -710,7 +710,6 @@ struct iwl_lq_cmd {
u8 iwl_fw_rate_idx_to_plcp(int idx);
u32 iwl_new_rate_from_v1(u32 rate_v1);
-u32 iwl_legacy_rate_to_fw_idx(u32 rate_n_flags);
const struct iwl_rate_mcs_info *iwl_rate_mcs(int idx);
const char *iwl_rs_pretty_ant(u8 ant);
const char *iwl_rs_pretty_bw(int bw);
--- a/drivers/net/wireless/intel/iwlwifi/fw/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/rs.c
@@ -91,6 +91,20 @@ const char *iwl_rs_pretty_bw(int bw)
}
IWL_EXPORT_SYMBOL(iwl_rs_pretty_bw);
+static u32 iwl_legacy_rate_to_fw_idx(u32 rate_n_flags)
+{
+ int rate = rate_n_flags & RATE_LEGACY_RATE_MSK_V1;
+ int idx;
+ bool ofdm = !(rate_n_flags & RATE_MCS_CCK_MSK_V1);
+ int offset = ofdm ? IWL_FIRST_OFDM_RATE : 0;
+ int last = ofdm ? IWL_RATE_COUNT_LEGACY : IWL_FIRST_OFDM_RATE;
+
+ for (idx = offset; idx < last; idx++)
+ if (iwl_fw_rate_idx_to_plcp(idx) == rate)
+ return idx - offset;
+ return IWL_RATE_INVALID;
+}
+
u32 iwl_new_rate_from_v1(u32 rate_v1)
{
u32 rate_v2 = 0;
@@ -144,7 +158,10 @@ u32 iwl_new_rate_from_v1(u32 rate_v1)
} else {
u32 legacy_rate = iwl_legacy_rate_to_fw_idx(rate_v1);
- WARN_ON(legacy_rate < 0);
+ if (WARN_ON_ONCE(legacy_rate == IWL_RATE_INVALID))
+ legacy_rate = (rate_v1 & RATE_MCS_CCK_MSK_V1) ?
+ IWL_FIRST_CCK_RATE : IWL_FIRST_OFDM_RATE;
+
rate_v2 |= legacy_rate;
if (!(rate_v1 & RATE_MCS_CCK_MSK_V1))
rate_v2 |= RATE_MCS_LEGACY_OFDM_MSK;
@@ -172,20 +189,6 @@ u32 iwl_new_rate_from_v1(u32 rate_v1)
}
IWL_EXPORT_SYMBOL(iwl_new_rate_from_v1);
-u32 iwl_legacy_rate_to_fw_idx(u32 rate_n_flags)
-{
- int rate = rate_n_flags & RATE_LEGACY_RATE_MSK_V1;
- int idx;
- bool ofdm = !(rate_n_flags & RATE_MCS_CCK_MSK_V1);
- int offset = ofdm ? IWL_FIRST_OFDM_RATE : 0;
- int last = ofdm ? IWL_RATE_COUNT_LEGACY : IWL_FIRST_OFDM_RATE;
-
- for (idx = offset; idx < last; idx++)
- if (iwl_fw_rate_idx_to_plcp(idx) == rate)
- return idx - offset;
- return -1;
-}
-
int rs_pretty_print_rate(char *buf, int bufsz, const u32 rate)
{
char *type;
From: Yu Huang <[email protected]>
commit c07f2c7b45413a9e50ba78630fda04ecfa17b4f2 upstream.
Legion Y9000X 2019 has the same speaker with Y9000X 2020,
but with a different quirk address. Add one quirk entry
to make the speaker work on Y9000X 2019 too.
Signed-off-by: Yu Huang <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9013,6 +9013,7 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x17aa, 0x3824, "Legion Y9000X 2020", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
+ SND_PCI_QUIRK(0x17aa, 0x383d, "Legion Y9000X 2019", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
From: Zoltán Böszörményi <[email protected]>
[ Upstream commit c8ea23d5fa59f28302d4e3370c75d9c308e64410 ]
This device is a CF card, or possibly an SSD in CF form factor.
It supports NCQ and high speed DMA.
While it also advertises TRIM support, I/O errors are reported
when the discard mount option fstrim is used. TRIM also fails
when disabling NCQ and not just as an NCQ command.
TRIM must be disabled for this device.
Signed-off-by: Zoltán Böszörményi <[email protected]>
Signed-off-by: Damien Le Moal <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/ata/libata-core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 94bc5dbb31e1e..63666ee9de175 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4079,6 +4079,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
/* devices that don't properly handle TRIM commands */
{ "SuperSSpeed S238*", NULL, ATA_HORKAGE_NOTRIM, },
+ { "M88V29*", NULL, ATA_HORKAGE_NOTRIM, },
/*
* As defined, the DRAT (Deterministic Read After Trim) and RZAT
--
2.34.1
From: Muhammad Usama Anjum <[email protected]>
commit 0316dbb9a017d3231f86e0188376f067ec26a59c upstream.
There is no vmx_pi_mmio_test file. Remove it to get rid of error while
creation of selftest archive:
rsync: [sender] link_stat "/kselftest/kvm/x86_64/vmx_pi_mmio_test" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]
Fixes: 6a58150859fd ("selftest: KVM: Add intra host migration tests")
Reported-by: "kernelci.org bot" <[email protected]>
Signed-off-by: Muhammad Usama Anjum <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/testing/selftests/kvm/Makefile | 1 -
1 file changed, 1 deletion(-)
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -75,7 +75,6 @@ TEST_GEN_PROGS_x86_64 += x86_64/tsc_msrs
TEST_GEN_PROGS_x86_64 += x86_64/vmx_pmu_msrs_test
TEST_GEN_PROGS_x86_64 += x86_64/xen_shinfo_test
TEST_GEN_PROGS_x86_64 += x86_64/xen_vmcall_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_pi_mmio_test
TEST_GEN_PROGS_x86_64 += x86_64/sev_migrate_tests
TEST_GEN_PROGS_x86_64 += access_tracking_perf_test
TEST_GEN_PROGS_x86_64 += demand_paging_test
From: Ye Guojin <[email protected]>
[ Upstream commit 34596ba380b03d181e24efd50e2f21045bde3696 ]
This was found by coccicheck:
./arch/arm/mach-omap2/display.c, 272, 1-7, ERROR missing put_device;
call of_find_device_by_node on line 258, but without a corresponding
object release within this function.
Move the put_device() call before the if judgment.
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: Ye Guojin <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm/mach-omap2/display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 6daaa645ae5d9..21413a9b7b6c6 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -263,9 +263,9 @@ static int __init omapdss_init_of(void)
}
r = of_platform_populate(node, NULL, NULL, &pdev->dev);
+ put_device(&pdev->dev);
if (r) {
pr_err("Unable to populate DSS submodule devices\n");
- put_device(&pdev->dev);
return r;
}
--
2.34.1
From: Eric Dumazet <[email protected]>
commit 5891cd5ec46c2c2eb6427cb54d214b149635dd0e upstream.
syzbot found a data-race [1] which lead me to add __rcu
annotations to netdev->qdisc, and proper accessors
to get LOCKDEP support.
[1]
BUG: KCSAN: data-race in dev_activate / qdisc_lookup_rcu
write to 0xffff888168ad6410 of 8 bytes by task 13559 on cpu 1:
attach_default_qdiscs net/sched/sch_generic.c:1167 [inline]
dev_activate+0x2ed/0x8f0 net/sched/sch_generic.c:1221
__dev_open+0x2e9/0x3a0 net/core/dev.c:1416
__dev_change_flags+0x167/0x3f0 net/core/dev.c:8139
rtnl_configure_link+0xc2/0x150 net/core/rtnetlink.c:3150
__rtnl_newlink net/core/rtnetlink.c:3489 [inline]
rtnl_newlink+0xf4d/0x13e0 net/core/rtnetlink.c:3529
rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5594
netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2494
rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5612
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x602/0x6d0 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x728/0x850 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmsg+0x195/0x230 net/socket.c:2496
__do_sys_sendmsg net/socket.c:2505 [inline]
__se_sys_sendmsg net/socket.c:2503 [inline]
__x64_sys_sendmsg+0x42/0x50 net/socket.c:2503
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
read to 0xffff888168ad6410 of 8 bytes by task 13560 on cpu 0:
qdisc_lookup_rcu+0x30/0x2e0 net/sched/sch_api.c:323
__tcf_qdisc_find+0x74/0x3a0 net/sched/cls_api.c:1050
tc_del_tfilter+0x1c7/0x1350 net/sched/cls_api.c:2211
rtnetlink_rcv_msg+0x5ba/0x7e0 net/core/rtnetlink.c:5585
netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2494
rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5612
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x602/0x6d0 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x728/0x850 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmsg+0x195/0x230 net/socket.c:2496
__do_sys_sendmsg net/socket.c:2505 [inline]
__se_sys_sendmsg net/socket.c:2503 [inline]
__x64_sys_sendmsg+0x42/0x50 net/socket.c:2503
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0xffffffff85dee080 -> 0xffff88815d96ec00
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13560 Comm: syz-executor.2 Not tainted 5.17.0-rc3-syzkaller-00116-gf1baf68e1383-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 470502de5bdb ("net: sched: unlock rules update API")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Vlad Buslov <[email protected]>
Reported-by: syzbot <[email protected]>
Cc: Jamal Hadi Salim <[email protected]>
Cc: Cong Wang <[email protected]>
Cc: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/netdevice.h | 2 +-
net/core/rtnetlink.c | 6 ++++--
net/sched/cls_api.c | 6 +++---
net/sched/sch_api.c | 22 ++++++++++++----------
net/sched/sch_generic.c | 29 ++++++++++++++++-------------
5 files changed, 36 insertions(+), 29 deletions(-)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2149,7 +2149,7 @@ struct net_device {
struct netdev_queue *_tx ____cacheline_aligned_in_smp;
unsigned int num_tx_queues;
unsigned int real_num_tx_queues;
- struct Qdisc *qdisc;
+ struct Qdisc __rcu *qdisc;
unsigned int tx_queue_len;
spinlock_t tx_global_lock;
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1698,6 +1698,7 @@ static int rtnl_fill_ifinfo(struct sk_bu
{
struct ifinfomsg *ifm;
struct nlmsghdr *nlh;
+ struct Qdisc *qdisc;
ASSERT_RTNL();
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
@@ -1715,6 +1716,7 @@ static int rtnl_fill_ifinfo(struct sk_bu
if (tgt_netnsid >= 0 && nla_put_s32(skb, IFLA_TARGET_NETNSID, tgt_netnsid))
goto nla_put_failure;
+ qdisc = rtnl_dereference(dev->qdisc);
if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
nla_put_u8(skb, IFLA_OPERSTATE,
@@ -1733,8 +1735,8 @@ static int rtnl_fill_ifinfo(struct sk_bu
#endif
put_master_ifindex(skb, dev) ||
nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
- (dev->qdisc &&
- nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
+ (qdisc &&
+ nla_put_string(skb, IFLA_QDISC, qdisc->ops->id)) ||
nla_put_ifalias(skb, dev) ||
nla_put_u32(skb, IFLA_CARRIER_CHANGES,
atomic_read(&dev->carrier_up_count) +
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1044,7 +1044,7 @@ static int __tcf_qdisc_find(struct net *
/* Find qdisc */
if (!*parent) {
- *q = dev->qdisc;
+ *q = rcu_dereference(dev->qdisc);
*parent = (*q)->handle;
} else {
*q = qdisc_lookup_rcu(dev, TC_H_MAJ(*parent));
@@ -2587,7 +2587,7 @@ static int tc_dump_tfilter(struct sk_buf
parent = tcm->tcm_parent;
if (!parent)
- q = dev->qdisc;
+ q = rtnl_dereference(dev->qdisc);
else
q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
if (!q)
@@ -2962,7 +2962,7 @@ static int tc_dump_chain(struct sk_buff
return skb->len;
if (!tcm->tcm_parent)
- q = dev->qdisc;
+ q = rtnl_dereference(dev->qdisc);
else
q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -301,7 +301,7 @@ struct Qdisc *qdisc_lookup(struct net_de
if (!handle)
return NULL;
- q = qdisc_match_from_root(dev->qdisc, handle);
+ q = qdisc_match_from_root(rtnl_dereference(dev->qdisc), handle);
if (q)
goto out;
@@ -320,7 +320,7 @@ struct Qdisc *qdisc_lookup_rcu(struct ne
if (!handle)
return NULL;
- q = qdisc_match_from_root(dev->qdisc, handle);
+ q = qdisc_match_from_root(rcu_dereference(dev->qdisc), handle);
if (q)
goto out;
@@ -1082,10 +1082,10 @@ static int qdisc_graft(struct net_device
skip:
if (!ingress) {
notify_and_destroy(net, skb, n, classid,
- dev->qdisc, new);
+ rtnl_dereference(dev->qdisc), new);
if (new && !new->ops->attach)
qdisc_refcount_inc(new);
- dev->qdisc = new ? : &noop_qdisc;
+ rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
if (new && new->ops->attach)
new->ops->attach(new);
@@ -1451,7 +1451,7 @@ static int tc_get_qdisc(struct sk_buff *
q = dev_ingress_queue(dev)->qdisc_sleeping;
}
} else {
- q = dev->qdisc;
+ q = rtnl_dereference(dev->qdisc);
}
if (!q) {
NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
@@ -1540,7 +1540,7 @@ replay:
q = dev_ingress_queue(dev)->qdisc_sleeping;
}
} else {
- q = dev->qdisc;
+ q = rtnl_dereference(dev->qdisc);
}
/* It may be default qdisc, ignore it */
@@ -1762,7 +1762,8 @@ static int tc_dump_qdisc(struct sk_buff
s_q_idx = 0;
q_idx = 0;
- if (tc_dump_qdisc_root(dev->qdisc, skb, cb, &q_idx, s_q_idx,
+ if (tc_dump_qdisc_root(rtnl_dereference(dev->qdisc),
+ skb, cb, &q_idx, s_q_idx,
true, tca[TCA_DUMP_INVISIBLE]) < 0)
goto done;
@@ -2033,7 +2034,7 @@ static int tc_ctl_tclass(struct sk_buff
} else if (qid1) {
qid = qid1;
} else if (qid == 0)
- qid = dev->qdisc->handle;
+ qid = rtnl_dereference(dev->qdisc)->handle;
/* Now qid is genuine qdisc handle consistent
* both with parent and child.
@@ -2044,7 +2045,7 @@ static int tc_ctl_tclass(struct sk_buff
portid = TC_H_MAKE(qid, portid);
} else {
if (qid == 0)
- qid = dev->qdisc->handle;
+ qid = rtnl_dereference(dev->qdisc)->handle;
}
/* OK. Locate qdisc */
@@ -2205,7 +2206,8 @@ static int tc_dump_tclass(struct sk_buff
s_t = cb->args[0];
t = 0;
- if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t, true) < 0)
+ if (tc_dump_tclass_root(rtnl_dereference(dev->qdisc),
+ skb, tcm, cb, &t, s_t, true) < 0)
goto done;
dev_queue = dev_ingress_queue(dev);
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1109,30 +1109,33 @@ static void attach_default_qdiscs(struct
if (!netif_is_multiqueue(dev) ||
dev->priv_flags & IFF_NO_QUEUE) {
netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
- dev->qdisc = txq->qdisc_sleeping;
- qdisc_refcount_inc(dev->qdisc);
+ qdisc = txq->qdisc_sleeping;
+ rcu_assign_pointer(dev->qdisc, qdisc);
+ qdisc_refcount_inc(qdisc);
} else {
qdisc = qdisc_create_dflt(txq, &mq_qdisc_ops, TC_H_ROOT, NULL);
if (qdisc) {
- dev->qdisc = qdisc;
+ rcu_assign_pointer(dev->qdisc, qdisc);
qdisc->ops->attach(qdisc);
}
}
+ qdisc = rtnl_dereference(dev->qdisc);
/* Detect default qdisc setup/init failed and fallback to "noqueue" */
- if (dev->qdisc == &noop_qdisc) {
+ if (qdisc == &noop_qdisc) {
netdev_warn(dev, "default qdisc (%s) fail, fallback to %s\n",
default_qdisc_ops->id, noqueue_qdisc_ops.id);
dev->priv_flags |= IFF_NO_QUEUE;
netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
- dev->qdisc = txq->qdisc_sleeping;
- qdisc_refcount_inc(dev->qdisc);
+ qdisc = txq->qdisc_sleeping;
+ rcu_assign_pointer(dev->qdisc, qdisc);
+ qdisc_refcount_inc(qdisc);
dev->priv_flags ^= IFF_NO_QUEUE;
}
#ifdef CONFIG_NET_SCHED
- if (dev->qdisc != &noop_qdisc)
- qdisc_hash_add(dev->qdisc, false);
+ if (qdisc != &noop_qdisc)
+ qdisc_hash_add(qdisc, false);
#endif
}
@@ -1162,7 +1165,7 @@ void dev_activate(struct net_device *dev
* and noqueue_qdisc for virtual interfaces
*/
- if (dev->qdisc == &noop_qdisc)
+ if (rtnl_dereference(dev->qdisc) == &noop_qdisc)
attach_default_qdiscs(dev);
if (!netif_carrier_ok(dev))
@@ -1328,7 +1331,7 @@ static int qdisc_change_tx_queue_len(str
void dev_qdisc_change_real_num_tx(struct net_device *dev,
unsigned int new_real_tx)
{
- struct Qdisc *qdisc = dev->qdisc;
+ struct Qdisc *qdisc = rtnl_dereference(dev->qdisc);
if (qdisc->ops->change_real_num_tx)
qdisc->ops->change_real_num_tx(qdisc, new_real_tx);
@@ -1392,7 +1395,7 @@ static void dev_init_scheduler_queue(str
void dev_init_scheduler(struct net_device *dev)
{
- dev->qdisc = &noop_qdisc;
+ rcu_assign_pointer(dev->qdisc, &noop_qdisc);
netdev_for_each_tx_queue(dev, dev_init_scheduler_queue, &noop_qdisc);
if (dev_ingress_queue(dev))
dev_init_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
@@ -1420,8 +1423,8 @@ void dev_shutdown(struct net_device *dev
netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
if (dev_ingress_queue(dev))
shutdown_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
- qdisc_put(dev->qdisc);
- dev->qdisc = &noop_qdisc;
+ qdisc_put(rtnl_dereference(dev->qdisc));
+ rcu_assign_pointer(dev->qdisc, &noop_qdisc);
WARN_ON(timer_pending(&dev->watchdog_timer));
}
From: Alexey Khoroshilov <[email protected]>
commit 8c6ae46150a453f8ae9a6cd49b45f354f478587d upstream.
of_node_put(priv->ds->slave_mii_bus->dev.of_node) should be
done before mdiobus_free(priv->ds->slave_mii_bus).
Signed-off-by: Alexey Khoroshilov <[email protected]>
Fixes: 0d120dfb5d67 ("net: dsa: lantiq_gswip: don't use devres for mdiobus")
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/dsa/lantiq_gswip.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -2217,8 +2217,8 @@ static int gswip_remove(struct platform_
if (priv->ds->slave_mii_bus) {
mdiobus_unregister(priv->ds->slave_mii_bus);
- mdiobus_free(priv->ds->slave_mii_bus);
of_node_put(priv->ds->slave_mii_bus->dev.of_node);
+ mdiobus_free(priv->ds->slave_mii_bus);
}
for (i = 0; i < priv->num_gphy_fw; i++)
From: Florian Westphal <[email protected]>
[ Upstream commit c858620d2ae3489409af593f005a48a8a324da3d ]
This selftests needs almost 3 minutes to complete, reduce the
insertes zones to 1000. Test now completes in about 20 seconds.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/netfilter/nft_zones_many.sh | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/netfilter/nft_zones_many.sh b/tools/testing/selftests/netfilter/nft_zones_many.sh
index 04633119b29a0..5a8db0b48928f 100755
--- a/tools/testing/selftests/netfilter/nft_zones_many.sh
+++ b/tools/testing/selftests/netfilter/nft_zones_many.sh
@@ -9,7 +9,7 @@ ns="ns-$sfx"
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
-zones=20000
+zones=2000
have_ct_tool=0
ret=0
@@ -75,10 +75,10 @@ EOF
while [ $i -lt $max_zones ]; do
local start=$(date +%s%3N)
- i=$((i + 10000))
+ i=$((i + 1000))
j=$((j + 1))
# nft rule in output places each packet in a different zone.
- dd if=/dev/zero of=/dev/stdout bs=8k count=10000 2>/dev/null | ip netns exec "$ns" socat STDIN UDP:127.0.0.1:12345,sourceport=12345
+ dd if=/dev/zero of=/dev/stdout bs=8k count=1000 2>/dev/null | ip netns exec "$ns" socat STDIN UDP:127.0.0.1:12345,sourceport=12345
if [ $? -ne 0 ] ;then
ret=1
break
@@ -86,7 +86,7 @@ EOF
stop=$(date +%s%3N)
local duration=$((stop-start))
- echo "PASS: added 10000 entries in $duration ms (now $i total, loop $j)"
+ echo "PASS: added 1000 entries in $duration ms (now $i total, loop $j)"
done
if [ $have_ct_tool -eq 1 ]; then
@@ -128,11 +128,11 @@ test_conntrack_tool() {
break
fi
- if [ $((i%10000)) -eq 0 ];then
+ if [ $((i%1000)) -eq 0 ];then
stop=$(date +%s%3N)
local duration=$((stop-start))
- echo "PASS: added 10000 entries in $duration ms (now $i total)"
+ echo "PASS: added 1000 entries in $duration ms (now $i total)"
start=$stop
fi
done
--
2.34.1
From: Ville Syrjälä <[email protected]>
commit 8d9d2a723d64b650f2e6423024ccb4a33f0cdc40 upstream.
The bogus loop from compute_dbuf_slices() was copied into
check_mbus_joined() as well. So this lookup is wrong as well.
Fix it.
Cc: [email protected]
Fixes: f4dc00863226 ("drm/i915/adl_p: MBUS programming")
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Jani Nikula <[email protected]>
(cherry picked from commit 053f2b85631316a9226f6340c1c0fd95634f7a5b)
Signed-off-by: Tvrtko Ursulin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/intel_pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4843,7 +4843,7 @@ static bool check_mbus_joined(u8 active_
{
int i;
- for (i = 0; i < dbuf_slices[i].active_pipes; i++) {
+ for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
if (dbuf_slices[i].active_pipes == active_pipes)
return dbuf_slices[i].join_mbus;
}
From: Ben Skeggs <[email protected]>
commit 4cdd2450bf739bada353e82d27b00db9af8c3001 upstream.
Signed-off-by: Ben Skeggs <[email protected]>
Reviewed-by: Karol Herbst <[email protected]>
Signed-off-by: Karol Herbst <[email protected]>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/10
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/nouveau/nvkm/falcon/base.c | 8 ++++--
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c | 31 +++++++++++++++++++++++-
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c | 2 -
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c | 2 -
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c | 2 -
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h | 2 +
6 files changed, 41 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
@@ -117,8 +117,12 @@ nvkm_falcon_disable(struct nvkm_falcon *
int
nvkm_falcon_reset(struct nvkm_falcon *falcon)
{
- nvkm_falcon_disable(falcon);
- return nvkm_falcon_enable(falcon);
+ if (!falcon->func->reset) {
+ nvkm_falcon_disable(falcon);
+ return nvkm_falcon_enable(falcon);
+ }
+
+ return falcon->func->reset(falcon);
}
int
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
@@ -23,9 +23,38 @@
*/
#include "priv.h"
+static int
+gm200_pmu_flcn_reset(struct nvkm_falcon *falcon)
+{
+ struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
+
+ nvkm_falcon_wr32(falcon, 0x014, 0x0000ffff);
+ pmu->func->reset(pmu);
+ return nvkm_falcon_enable(falcon);
+}
+
+const struct nvkm_falcon_func
+gm200_pmu_flcn = {
+ .debug = 0xc08,
+ .fbif = 0xe00,
+ .load_imem = nvkm_falcon_v1_load_imem,
+ .load_dmem = nvkm_falcon_v1_load_dmem,
+ .read_dmem = nvkm_falcon_v1_read_dmem,
+ .bind_context = nvkm_falcon_v1_bind_context,
+ .wait_for_halt = nvkm_falcon_v1_wait_for_halt,
+ .clear_interrupt = nvkm_falcon_v1_clear_interrupt,
+ .set_start_addr = nvkm_falcon_v1_set_start_addr,
+ .start = nvkm_falcon_v1_start,
+ .enable = nvkm_falcon_v1_enable,
+ .disable = nvkm_falcon_v1_disable,
+ .reset = gm200_pmu_flcn_reset,
+ .cmdq = { 0x4a0, 0x4b0, 4 },
+ .msgq = { 0x4c8, 0x4cc, 0 },
+};
+
static const struct nvkm_pmu_func
gm200_pmu = {
- .flcn = >215_pmu_flcn,
+ .flcn = &gm200_pmu_flcn,
.enabled = gf100_pmu_enabled,
.reset = gf100_pmu_reset,
};
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
@@ -211,7 +211,7 @@ gm20b_pmu_recv(struct nvkm_pmu *pmu)
static const struct nvkm_pmu_func
gm20b_pmu = {
- .flcn = >215_pmu_flcn,
+ .flcn = &gm200_pmu_flcn,
.enabled = gf100_pmu_enabled,
.intr = gt215_pmu_intr,
.recv = gm20b_pmu_recv,
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
@@ -39,7 +39,7 @@ gp102_pmu_enabled(struct nvkm_pmu *pmu)
static const struct nvkm_pmu_func
gp102_pmu = {
- .flcn = >215_pmu_flcn,
+ .flcn = &gm200_pmu_flcn,
.enabled = gp102_pmu_enabled,
.reset = gp102_pmu_reset,
};
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
@@ -78,7 +78,7 @@ gp10b_pmu_acr = {
static const struct nvkm_pmu_func
gp10b_pmu = {
- .flcn = >215_pmu_flcn,
+ .flcn = &gm200_pmu_flcn,
.enabled = gf100_pmu_enabled,
.intr = gt215_pmu_intr,
.recv = gm20b_pmu_recv,
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
@@ -44,6 +44,8 @@ void gf100_pmu_reset(struct nvkm_pmu *);
void gk110_pmu_pgob(struct nvkm_pmu *, bool);
+extern const struct nvkm_falcon_func gm200_pmu_flcn;
+
void gm20b_pmu_acr_bld_patch(struct nvkm_acr *, u32, s64);
void gm20b_pmu_acr_bld_write(struct nvkm_acr *, u32, struct nvkm_acr_lsfw *);
int gm20b_pmu_acr_boot(struct nvkm_falcon *);
From: Hao Luo <[email protected]>
commit c25b2ae136039ffa820c26138ed4a5e5f3ab3841 upstream.
We have introduced a new type to make bpf_reg composable, by
allocating bits in the type to represent flags.
One of the flags is PTR_MAYBE_NULL which indicates a pointer
may be NULL. This patch switches the qualified reg_types to
use this flag. The reg_types changed in this patch include:
1. PTR_TO_MAP_VALUE_OR_NULL
2. PTR_TO_SOCKET_OR_NULL
3. PTR_TO_SOCK_COMMON_OR_NULL
4. PTR_TO_TCP_SOCK_OR_NULL
5. PTR_TO_BTF_ID_OR_NULL
6. PTR_TO_MEM_OR_NULL
7. PTR_TO_RDONLY_BUF_OR_NULL
8. PTR_TO_RDWR_BUF_OR_NULL
[haoluo: backport notes
There was a reg_type_may_be_null() in adjust_ptr_min_max_vals() in
5.16.x, but didn't exist in the upstream commit. This backport
converted that reg_type_may_be_null() to type_may_be_null() as well.]
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 18 +-
include/linux/bpf_verifier.h | 4
kernel/bpf/btf.c | 7 -
kernel/bpf/map_iter.c | 4
kernel/bpf/verifier.c | 297 ++++++++++++++++++-------------------------
net/core/bpf_sk_storage.c | 2
net/core/sock_map.c | 2
7 files changed, 148 insertions(+), 186 deletions(-)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -465,18 +465,15 @@ enum bpf_reg_type {
PTR_TO_CTX, /* reg points to bpf_context */
CONST_PTR_TO_MAP, /* reg points to struct bpf_map */
PTR_TO_MAP_VALUE, /* reg points to map element value */
- PTR_TO_MAP_VALUE_OR_NULL,/* points to map elem value or NULL */
+ PTR_TO_MAP_KEY, /* reg points to a map element key */
PTR_TO_STACK, /* reg == frame_pointer + offset */
PTR_TO_PACKET_META, /* skb->data - meta_len */
PTR_TO_PACKET, /* reg points to skb->data */
PTR_TO_PACKET_END, /* skb->data + headlen */
PTR_TO_FLOW_KEYS, /* reg points to bpf_flow_keys */
PTR_TO_SOCKET, /* reg points to struct bpf_sock */
- PTR_TO_SOCKET_OR_NULL, /* reg points to struct bpf_sock or NULL */
PTR_TO_SOCK_COMMON, /* reg points to sock_common */
- PTR_TO_SOCK_COMMON_OR_NULL, /* reg points to sock_common or NULL */
PTR_TO_TCP_SOCK, /* reg points to struct tcp_sock */
- PTR_TO_TCP_SOCK_OR_NULL, /* reg points to struct tcp_sock or NULL */
PTR_TO_TP_BUFFER, /* reg points to a writable raw tp's buffer */
PTR_TO_XDP_SOCK, /* reg points to struct xdp_sock */
/* PTR_TO_BTF_ID points to a kernel struct that does not need
@@ -494,18 +491,21 @@ enum bpf_reg_type {
* been checked for null. Used primarily to inform the verifier
* an explicit null check is required for this struct.
*/
- PTR_TO_BTF_ID_OR_NULL,
PTR_TO_MEM, /* reg points to valid memory region */
- PTR_TO_MEM_OR_NULL, /* reg points to valid memory region or NULL */
PTR_TO_RDONLY_BUF, /* reg points to a readonly buffer */
- PTR_TO_RDONLY_BUF_OR_NULL, /* reg points to a readonly buffer or NULL */
PTR_TO_RDWR_BUF, /* reg points to a read/write buffer */
- PTR_TO_RDWR_BUF_OR_NULL, /* reg points to a read/write buffer or NULL */
PTR_TO_PERCPU_BTF_ID, /* reg points to a percpu kernel variable */
PTR_TO_FUNC, /* reg points to a bpf program function */
- PTR_TO_MAP_KEY, /* reg points to a map element key */
__BPF_REG_TYPE_MAX,
+ /* Extended reg_types. */
+ PTR_TO_MAP_VALUE_OR_NULL = PTR_MAYBE_NULL | PTR_TO_MAP_VALUE,
+ PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | PTR_TO_SOCKET,
+ PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | PTR_TO_SOCK_COMMON,
+ PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | PTR_TO_TCP_SOCK,
+ PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | PTR_TO_BTF_ID,
+ PTR_TO_MEM_OR_NULL = PTR_MAYBE_NULL | PTR_TO_MEM,
+
/* This must be the last entry. Its purpose is to ensure the enum is
* wide enough to hold the higher bits reserved for bpf_type_flag.
*/
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -18,6 +18,8 @@
* that converting umax_value to int cannot overflow.
*/
#define BPF_MAX_VAR_SIZ (1 << 29)
+/* size of type_str_buf in bpf_verifier. */
+#define TYPE_STR_BUF_LEN 64
/* Liveness marks, used for registers and spilled-regs (in stack slots).
* Read marks propagate upwards until they find a write mark; they record that
@@ -474,6 +476,8 @@ struct bpf_verifier_env {
/* longest register parentage chain walked for liveness marking */
u32 longest_mark_read_walk;
bpfptr_t fd_array;
+ /* buffer used in reg_type_str() to generate reg_type string */
+ char type_str_buf[TYPE_STR_BUF_LEN];
};
__printf(2, 0) void bpf_verifier_vlog(struct bpf_verifier_log *log,
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4928,10 +4928,13 @@ bool btf_ctx_access(int off, int size, e
/* check for PTR_TO_RDONLY_BUF_OR_NULL or PTR_TO_RDWR_BUF_OR_NULL */
for (i = 0; i < prog->aux->ctx_arg_info_size; i++) {
const struct bpf_ctx_arg_aux *ctx_arg_info = &prog->aux->ctx_arg_info[i];
+ u32 type, flag;
+ type = base_type(ctx_arg_info->reg_type);
+ flag = type_flag(ctx_arg_info->reg_type);
if (ctx_arg_info->offset == off &&
- (ctx_arg_info->reg_type == PTR_TO_RDONLY_BUF_OR_NULL ||
- ctx_arg_info->reg_type == PTR_TO_RDWR_BUF_OR_NULL)) {
+ (type == PTR_TO_RDWR_BUF || type == PTR_TO_RDONLY_BUF) &&
+ (flag & PTR_MAYBE_NULL)) {
info->reg_type = ctx_arg_info->reg_type;
return true;
}
--- a/kernel/bpf/map_iter.c
+++ b/kernel/bpf/map_iter.c
@@ -174,9 +174,9 @@ static const struct bpf_iter_reg bpf_map
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__bpf_map_elem, key),
- PTR_TO_RDONLY_BUF_OR_NULL },
+ PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL },
{ offsetof(struct bpf_iter__bpf_map_elem, value),
- PTR_TO_RDWR_BUF_OR_NULL },
+ PTR_TO_RDWR_BUF | PTR_MAYBE_NULL },
},
};
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -439,18 +439,6 @@ static bool reg_type_not_null(enum bpf_r
type == PTR_TO_SOCK_COMMON;
}
-static bool reg_type_may_be_null(enum bpf_reg_type type)
-{
- return type == PTR_TO_MAP_VALUE_OR_NULL ||
- type == PTR_TO_SOCKET_OR_NULL ||
- type == PTR_TO_SOCK_COMMON_OR_NULL ||
- type == PTR_TO_TCP_SOCK_OR_NULL ||
- type == PTR_TO_BTF_ID_OR_NULL ||
- type == PTR_TO_MEM_OR_NULL ||
- type == PTR_TO_RDONLY_BUF_OR_NULL ||
- type == PTR_TO_RDWR_BUF_OR_NULL;
-}
-
static bool reg_may_point_to_spin_lock(const struct bpf_reg_state *reg)
{
return reg->type == PTR_TO_MAP_VALUE &&
@@ -459,12 +447,9 @@ static bool reg_may_point_to_spin_lock(c
static bool reg_type_may_be_refcounted_or_null(enum bpf_reg_type type)
{
- return type == PTR_TO_SOCKET ||
- type == PTR_TO_SOCKET_OR_NULL ||
- type == PTR_TO_TCP_SOCK ||
- type == PTR_TO_TCP_SOCK_OR_NULL ||
- type == PTR_TO_MEM ||
- type == PTR_TO_MEM_OR_NULL;
+ return base_type(type) == PTR_TO_SOCKET ||
+ base_type(type) == PTR_TO_TCP_SOCK ||
+ base_type(type) == PTR_TO_MEM;
}
static bool arg_type_may_be_refcounted(enum bpf_arg_type type)
@@ -534,39 +519,52 @@ static bool is_cmpxchg_insn(const struct
insn->imm == BPF_CMPXCHG;
}
-/* string representation of 'enum bpf_reg_type' */
-static const char * const reg_type_str[] = {
- [NOT_INIT] = "?",
- [SCALAR_VALUE] = "inv",
- [PTR_TO_CTX] = "ctx",
- [CONST_PTR_TO_MAP] = "map_ptr",
- [PTR_TO_MAP_VALUE] = "map_value",
- [PTR_TO_MAP_VALUE_OR_NULL] = "map_value_or_null",
- [PTR_TO_STACK] = "fp",
- [PTR_TO_PACKET] = "pkt",
- [PTR_TO_PACKET_META] = "pkt_meta",
- [PTR_TO_PACKET_END] = "pkt_end",
- [PTR_TO_FLOW_KEYS] = "flow_keys",
- [PTR_TO_SOCKET] = "sock",
- [PTR_TO_SOCKET_OR_NULL] = "sock_or_null",
- [PTR_TO_SOCK_COMMON] = "sock_common",
- [PTR_TO_SOCK_COMMON_OR_NULL] = "sock_common_or_null",
- [PTR_TO_TCP_SOCK] = "tcp_sock",
- [PTR_TO_TCP_SOCK_OR_NULL] = "tcp_sock_or_null",
- [PTR_TO_TP_BUFFER] = "tp_buffer",
- [PTR_TO_XDP_SOCK] = "xdp_sock",
- [PTR_TO_BTF_ID] = "ptr_",
- [PTR_TO_BTF_ID_OR_NULL] = "ptr_or_null_",
- [PTR_TO_PERCPU_BTF_ID] = "percpu_ptr_",
- [PTR_TO_MEM] = "mem",
- [PTR_TO_MEM_OR_NULL] = "mem_or_null",
- [PTR_TO_RDONLY_BUF] = "rdonly_buf",
- [PTR_TO_RDONLY_BUF_OR_NULL] = "rdonly_buf_or_null",
- [PTR_TO_RDWR_BUF] = "rdwr_buf",
- [PTR_TO_RDWR_BUF_OR_NULL] = "rdwr_buf_or_null",
- [PTR_TO_FUNC] = "func",
- [PTR_TO_MAP_KEY] = "map_key",
-};
+/* string representation of 'enum bpf_reg_type'
+ *
+ * Note that reg_type_str() can not appear more than once in a single verbose()
+ * statement.
+ */
+static const char *reg_type_str(struct bpf_verifier_env *env,
+ enum bpf_reg_type type)
+{
+ char postfix[16] = {0};
+ static const char * const str[] = {
+ [NOT_INIT] = "?",
+ [SCALAR_VALUE] = "inv",
+ [PTR_TO_CTX] = "ctx",
+ [CONST_PTR_TO_MAP] = "map_ptr",
+ [PTR_TO_MAP_VALUE] = "map_value",
+ [PTR_TO_STACK] = "fp",
+ [PTR_TO_PACKET] = "pkt",
+ [PTR_TO_PACKET_META] = "pkt_meta",
+ [PTR_TO_PACKET_END] = "pkt_end",
+ [PTR_TO_FLOW_KEYS] = "flow_keys",
+ [PTR_TO_SOCKET] = "sock",
+ [PTR_TO_SOCK_COMMON] = "sock_common",
+ [PTR_TO_TCP_SOCK] = "tcp_sock",
+ [PTR_TO_TP_BUFFER] = "tp_buffer",
+ [PTR_TO_XDP_SOCK] = "xdp_sock",
+ [PTR_TO_BTF_ID] = "ptr_",
+ [PTR_TO_PERCPU_BTF_ID] = "percpu_ptr_",
+ [PTR_TO_MEM] = "mem",
+ [PTR_TO_RDONLY_BUF] = "rdonly_buf",
+ [PTR_TO_RDWR_BUF] = "rdwr_buf",
+ [PTR_TO_FUNC] = "func",
+ [PTR_TO_MAP_KEY] = "map_key",
+ };
+
+ if (type & PTR_MAYBE_NULL) {
+ if (base_type(type) == PTR_TO_BTF_ID ||
+ base_type(type) == PTR_TO_PERCPU_BTF_ID)
+ strncpy(postfix, "or_null_", 16);
+ else
+ strncpy(postfix, "_or_null", 16);
+ }
+
+ snprintf(env->type_str_buf, TYPE_STR_BUF_LEN, "%s%s",
+ str[base_type(type)], postfix);
+ return env->type_str_buf;
+}
static char slot_type_char[] = {
[STACK_INVALID] = '?',
@@ -631,7 +629,7 @@ static void print_verifier_state(struct
continue;
verbose(env, " R%d", i);
print_liveness(env, reg->live);
- verbose(env, "=%s", reg_type_str[t]);
+ verbose(env, "=%s", reg_type_str(env, t));
if (t == SCALAR_VALUE && reg->precise)
verbose(env, "P");
if ((t == SCALAR_VALUE || t == PTR_TO_STACK) &&
@@ -639,9 +637,8 @@ static void print_verifier_state(struct
/* reg->off should be 0 for SCALAR_VALUE */
verbose(env, "%lld", reg->var_off.value + reg->off);
} else {
- if (t == PTR_TO_BTF_ID ||
- t == PTR_TO_BTF_ID_OR_NULL ||
- t == PTR_TO_PERCPU_BTF_ID)
+ if (base_type(t) == PTR_TO_BTF_ID ||
+ base_type(t) == PTR_TO_PERCPU_BTF_ID)
verbose(env, "%s", kernel_type_name(reg->btf, reg->btf_id));
verbose(env, "(id=%d", reg->id);
if (reg_type_may_be_refcounted_or_null(t))
@@ -650,10 +647,9 @@ static void print_verifier_state(struct
verbose(env, ",off=%d", reg->off);
if (type_is_pkt_pointer(t))
verbose(env, ",r=%d", reg->range);
- else if (t == CONST_PTR_TO_MAP ||
- t == PTR_TO_MAP_KEY ||
- t == PTR_TO_MAP_VALUE ||
- t == PTR_TO_MAP_VALUE_OR_NULL)
+ else if (base_type(t) == CONST_PTR_TO_MAP ||
+ base_type(t) == PTR_TO_MAP_KEY ||
+ base_type(t) == PTR_TO_MAP_VALUE)
verbose(env, ",ks=%d,vs=%d",
reg->map_ptr->key_size,
reg->map_ptr->value_size);
@@ -723,7 +719,7 @@ static void print_verifier_state(struct
if (is_spilled_reg(&state->stack[i])) {
reg = &state->stack[i].spilled_ptr;
t = reg->type;
- verbose(env, "=%s", reg_type_str[t]);
+ verbose(env, "=%s", reg_type_str(env, t));
if (t == SCALAR_VALUE && reg->precise)
verbose(env, "P");
if (t == SCALAR_VALUE && tnum_is_const(reg->var_off))
@@ -1136,8 +1132,7 @@ static void mark_reg_known_zero(struct b
static void mark_ptr_not_null_reg(struct bpf_reg_state *reg)
{
- switch (reg->type) {
- case PTR_TO_MAP_VALUE_OR_NULL: {
+ if (base_type(reg->type) == PTR_TO_MAP_VALUE) {
const struct bpf_map *map = reg->map_ptr;
if (map->inner_map_meta) {
@@ -1156,32 +1151,10 @@ static void mark_ptr_not_null_reg(struct
} else {
reg->type = PTR_TO_MAP_VALUE;
}
- break;
- }
- case PTR_TO_SOCKET_OR_NULL:
- reg->type = PTR_TO_SOCKET;
- break;
- case PTR_TO_SOCK_COMMON_OR_NULL:
- reg->type = PTR_TO_SOCK_COMMON;
- break;
- case PTR_TO_TCP_SOCK_OR_NULL:
- reg->type = PTR_TO_TCP_SOCK;
- break;
- case PTR_TO_BTF_ID_OR_NULL:
- reg->type = PTR_TO_BTF_ID;
- break;
- case PTR_TO_MEM_OR_NULL:
- reg->type = PTR_TO_MEM;
- break;
- case PTR_TO_RDONLY_BUF_OR_NULL:
- reg->type = PTR_TO_RDONLY_BUF;
- break;
- case PTR_TO_RDWR_BUF_OR_NULL:
- reg->type = PTR_TO_RDWR_BUF;
- break;
- default:
- WARN_ONCE(1, "unknown nullable register type");
+ return;
}
+
+ reg->type &= ~PTR_MAYBE_NULL;
}
static bool reg_is_pkt_pointer(const struct bpf_reg_state *reg)
@@ -2042,7 +2015,7 @@ static int mark_reg_read(struct bpf_veri
break;
if (parent->live & REG_LIVE_DONE) {
verbose(env, "verifier BUG type %s var_off %lld off %d\n",
- reg_type_str[parent->type],
+ reg_type_str(env, parent->type),
parent->var_off.value, parent->off);
return -EFAULT;
}
@@ -2701,9 +2674,8 @@ static int mark_chain_precision_stack(st
static bool is_spillable_regtype(enum bpf_reg_type type)
{
- switch (type) {
+ switch (base_type(type)) {
case PTR_TO_MAP_VALUE:
- case PTR_TO_MAP_VALUE_OR_NULL:
case PTR_TO_STACK:
case PTR_TO_CTX:
case PTR_TO_PACKET:
@@ -2712,21 +2684,14 @@ static bool is_spillable_regtype(enum bp
case PTR_TO_FLOW_KEYS:
case CONST_PTR_TO_MAP:
case PTR_TO_SOCKET:
- case PTR_TO_SOCKET_OR_NULL:
case PTR_TO_SOCK_COMMON:
- case PTR_TO_SOCK_COMMON_OR_NULL:
case PTR_TO_TCP_SOCK:
- case PTR_TO_TCP_SOCK_OR_NULL:
case PTR_TO_XDP_SOCK:
case PTR_TO_BTF_ID:
- case PTR_TO_BTF_ID_OR_NULL:
case PTR_TO_RDONLY_BUF:
- case PTR_TO_RDONLY_BUF_OR_NULL:
case PTR_TO_RDWR_BUF:
- case PTR_TO_RDWR_BUF_OR_NULL:
case PTR_TO_PERCPU_BTF_ID:
case PTR_TO_MEM:
- case PTR_TO_MEM_OR_NULL:
case PTR_TO_FUNC:
case PTR_TO_MAP_KEY:
return true;
@@ -3567,7 +3532,7 @@ static int check_ctx_access(struct bpf_v
*/
*reg_type = info.reg_type;
- if (*reg_type == PTR_TO_BTF_ID || *reg_type == PTR_TO_BTF_ID_OR_NULL) {
+ if (base_type(*reg_type) == PTR_TO_BTF_ID) {
*btf = info.btf;
*btf_id = info.btf_id;
} else {
@@ -3635,7 +3600,7 @@ static int check_sock_access(struct bpf_
}
verbose(env, "R%d invalid %s access off=%d size=%d\n",
- regno, reg_type_str[reg->type], off, size);
+ regno, reg_type_str(env, reg->type), off, size);
return -EACCES;
}
@@ -4400,7 +4365,7 @@ static int check_mem_access(struct bpf_v
} else {
mark_reg_known_zero(env, regs,
value_regno);
- if (reg_type_may_be_null(reg_type))
+ if (type_may_be_null(reg_type))
regs[value_regno].id = ++env->id_gen;
/* A load of ctx field could have different
* actual load size with the one encoded in the
@@ -4408,8 +4373,7 @@ static int check_mem_access(struct bpf_v
* a sub-register.
*/
regs[value_regno].subreg_def = DEF_NOT_SUBREG;
- if (reg_type == PTR_TO_BTF_ID ||
- reg_type == PTR_TO_BTF_ID_OR_NULL) {
+ if (base_type(reg_type) == PTR_TO_BTF_ID) {
regs[value_regno].btf = btf;
regs[value_regno].btf_id = btf_id;
}
@@ -4462,7 +4426,7 @@ static int check_mem_access(struct bpf_v
} else if (type_is_sk_pointer(reg->type)) {
if (t == BPF_WRITE) {
verbose(env, "R%d cannot write into %s\n",
- regno, reg_type_str[reg->type]);
+ regno, reg_type_str(env, reg->type));
return -EACCES;
}
err = check_sock_access(env, insn_idx, regno, off, size, t);
@@ -4481,7 +4445,7 @@ static int check_mem_access(struct bpf_v
} else if (reg->type == PTR_TO_RDONLY_BUF) {
if (t == BPF_WRITE) {
verbose(env, "R%d cannot write into %s\n",
- regno, reg_type_str[reg->type]);
+ regno, reg_type_str(env, reg->type));
return -EACCES;
}
err = check_buffer_access(env, reg, regno, off, size, false,
@@ -4497,7 +4461,7 @@ static int check_mem_access(struct bpf_v
mark_reg_unknown(env, regs, value_regno);
} else {
verbose(env, "R%d invalid mem access '%s'\n", regno,
- reg_type_str[reg->type]);
+ reg_type_str(env, reg->type));
return -EACCES;
}
@@ -4571,7 +4535,7 @@ static int check_atomic(struct bpf_verif
is_sk_reg(env, insn->dst_reg)) {
verbose(env, "BPF_ATOMIC stores into R%d %s is not allowed\n",
insn->dst_reg,
- reg_type_str[reg_state(env, insn->dst_reg)->type]);
+ reg_type_str(env, reg_state(env, insn->dst_reg)->type));
return -EACCES;
}
@@ -4797,9 +4761,9 @@ static int check_helper_mem_access(struc
register_is_null(reg))
return 0;
- verbose(env, "R%d type=%s expected=%s\n", regno,
- reg_type_str[reg->type],
- reg_type_str[PTR_TO_STACK]);
+ verbose(env, "R%d type=%s ", regno,
+ reg_type_str(env, reg->type));
+ verbose(env, "expected=%s\n", reg_type_str(env, PTR_TO_STACK));
return -EACCES;
}
}
@@ -4810,7 +4774,7 @@ int check_mem_reg(struct bpf_verifier_en
if (register_is_null(reg))
return 0;
- if (reg_type_may_be_null(reg->type)) {
+ if (type_may_be_null(reg->type)) {
/* Assuming that the register contains a value check if the memory
* access is safe. Temporarily save and restore the register's state as
* the conversion shouldn't be visible to a caller.
@@ -5144,10 +5108,10 @@ static int check_reg_type(struct bpf_ver
goto found;
}
- verbose(env, "R%d type=%s expected=", regno, reg_type_str[type]);
+ verbose(env, "R%d type=%s expected=", regno, reg_type_str(env, type));
for (j = 0; j + 1 < i; j++)
- verbose(env, "%s, ", reg_type_str[compatible->types[j]]);
- verbose(env, "%s\n", reg_type_str[compatible->types[j]]);
+ verbose(env, "%s, ", reg_type_str(env, compatible->types[j]));
+ verbose(env, "%s\n", reg_type_str(env, compatible->types[j]));
return -EACCES;
found:
@@ -6376,6 +6340,7 @@ static int check_helper_call(struct bpf_
{
const struct bpf_func_proto *fn = NULL;
enum bpf_return_type ret_type;
+ enum bpf_type_flag ret_flag;
struct bpf_reg_state *regs;
struct bpf_call_arg_meta meta;
int insn_idx = *insn_idx_p;
@@ -6510,6 +6475,7 @@ static int check_helper_call(struct bpf_
/* update return register (already marked as written above) */
ret_type = fn->ret_type;
+ ret_flag = type_flag(fn->ret_type);
if (ret_type == RET_INTEGER) {
/* sets type to SCALAR_VALUE */
mark_reg_unknown(env, regs, BPF_REG_0);
@@ -6529,25 +6495,23 @@ static int check_helper_call(struct bpf_
}
regs[BPF_REG_0].map_ptr = meta.map_ptr;
regs[BPF_REG_0].map_uid = meta.map_uid;
- if (type_may_be_null(ret_type)) {
- regs[BPF_REG_0].type = PTR_TO_MAP_VALUE_OR_NULL;
- } else {
- regs[BPF_REG_0].type = PTR_TO_MAP_VALUE;
- if (map_value_has_spin_lock(meta.map_ptr))
- regs[BPF_REG_0].id = ++env->id_gen;
+ regs[BPF_REG_0].type = PTR_TO_MAP_VALUE | ret_flag;
+ if (!type_may_be_null(ret_type) &&
+ map_value_has_spin_lock(meta.map_ptr)) {
+ regs[BPF_REG_0].id = ++env->id_gen;
}
} else if (base_type(ret_type) == RET_PTR_TO_SOCKET) {
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = PTR_TO_SOCKET_OR_NULL;
+ regs[BPF_REG_0].type = PTR_TO_SOCKET | ret_flag;
} else if (base_type(ret_type) == RET_PTR_TO_SOCK_COMMON) {
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = PTR_TO_SOCK_COMMON_OR_NULL;
+ regs[BPF_REG_0].type = PTR_TO_SOCK_COMMON | ret_flag;
} else if (base_type(ret_type) == RET_PTR_TO_TCP_SOCK) {
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = PTR_TO_TCP_SOCK_OR_NULL;
+ regs[BPF_REG_0].type = PTR_TO_TCP_SOCK | ret_flag;
} else if (base_type(ret_type) == RET_PTR_TO_ALLOC_MEM) {
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = PTR_TO_MEM_OR_NULL;
+ regs[BPF_REG_0].type = PTR_TO_MEM | ret_flag;
regs[BPF_REG_0].mem_size = meta.mem_size;
} else if (base_type(ret_type) == RET_PTR_TO_MEM_OR_BTF_ID) {
const struct btf_type *t;
@@ -6567,14 +6531,10 @@ static int check_helper_call(struct bpf_
tname, PTR_ERR(ret));
return -EINVAL;
}
- regs[BPF_REG_0].type =
- (ret_type & PTR_MAYBE_NULL) ?
- PTR_TO_MEM_OR_NULL : PTR_TO_MEM;
+ regs[BPF_REG_0].type = PTR_TO_MEM | ret_flag;
regs[BPF_REG_0].mem_size = tsize;
} else {
- regs[BPF_REG_0].type =
- (ret_type & PTR_MAYBE_NULL) ?
- PTR_TO_BTF_ID_OR_NULL : PTR_TO_BTF_ID;
+ regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
regs[BPF_REG_0].btf = meta.ret_btf;
regs[BPF_REG_0].btf_id = meta.ret_btf_id;
}
@@ -6582,9 +6542,7 @@ static int check_helper_call(struct bpf_
int ret_btf_id;
mark_reg_known_zero(env, regs, BPF_REG_0);
- regs[BPF_REG_0].type = (ret_type & PTR_MAYBE_NULL) ?
- PTR_TO_BTF_ID_OR_NULL :
- PTR_TO_BTF_ID;
+ regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
ret_btf_id = *fn->ret_btf_id;
if (ret_btf_id == 0) {
verbose(env, "invalid return type %u of func %s#%d\n",
@@ -6603,7 +6561,7 @@ static int check_helper_call(struct bpf_
return -EINVAL;
}
- if (reg_type_may_be_null(regs[BPF_REG_0].type))
+ if (type_may_be_null(regs[BPF_REG_0].type))
regs[BPF_REG_0].id = ++env->id_gen;
if (is_ptr_cast_function(func_id)) {
@@ -6812,25 +6770,25 @@ static bool check_reg_sane_offset(struct
if (known && (val >= BPF_MAX_VAR_OFF || val <= -BPF_MAX_VAR_OFF)) {
verbose(env, "math between %s pointer and %lld is not allowed\n",
- reg_type_str[type], val);
+ reg_type_str(env, type), val);
return false;
}
if (reg->off >= BPF_MAX_VAR_OFF || reg->off <= -BPF_MAX_VAR_OFF) {
verbose(env, "%s pointer offset %d is not allowed\n",
- reg_type_str[type], reg->off);
+ reg_type_str(env, type), reg->off);
return false;
}
if (smin == S64_MIN) {
verbose(env, "math between %s pointer and register with unbounded min value is not allowed\n",
- reg_type_str[type]);
+ reg_type_str(env, type));
return false;
}
if (smin >= BPF_MAX_VAR_OFF || smin <= -BPF_MAX_VAR_OFF) {
verbose(env, "value %lld makes %s pointer be out of bounds\n",
- smin, reg_type_str[type]);
+ smin, reg_type_str(env, type));
return false;
}
@@ -7207,11 +7165,13 @@ static int adjust_ptr_min_max_vals(struc
return -EACCES;
}
- switch (ptr_reg->type) {
- case PTR_TO_MAP_VALUE_OR_NULL:
+ if (ptr_reg->type & PTR_MAYBE_NULL) {
verbose(env, "R%d pointer arithmetic on %s prohibited, null-check it first\n",
- dst, reg_type_str[ptr_reg->type]);
+ dst, reg_type_str(env, ptr_reg->type));
return -EACCES;
+ }
+
+ switch (base_type(ptr_reg->type)) {
case CONST_PTR_TO_MAP:
/* smin_val represents the known value */
if (known && smin_val == 0 && opcode == BPF_ADD)
@@ -7224,10 +7184,10 @@ static int adjust_ptr_min_max_vals(struc
case PTR_TO_XDP_SOCK:
reject:
verbose(env, "R%d pointer arithmetic on %s prohibited\n",
- dst, reg_type_str[ptr_reg->type]);
+ dst, reg_type_str(env, ptr_reg->type));
return -EACCES;
default:
- if (reg_type_may_be_null(ptr_reg->type))
+ if (type_may_be_null(ptr_reg->type))
goto reject;
break;
}
@@ -8949,7 +8909,7 @@ static void mark_ptr_or_null_reg(struct
struct bpf_reg_state *reg, u32 id,
bool is_null)
{
- if (reg_type_may_be_null(reg->type) && reg->id == id &&
+ if (type_may_be_null(reg->type) && reg->id == id &&
!WARN_ON_ONCE(!reg->id)) {
if (WARN_ON_ONCE(reg->smin_value || reg->smax_value ||
!tnum_equals_const(reg->var_off, 0) ||
@@ -9327,7 +9287,7 @@ static int check_cond_jmp_op(struct bpf_
*/
if (!is_jmp32 && BPF_SRC(insn->code) == BPF_K &&
insn->imm == 0 && (opcode == BPF_JEQ || opcode == BPF_JNE) &&
- reg_type_may_be_null(dst_reg->type)) {
+ type_may_be_null(dst_reg->type)) {
/* Mark all identical registers in each branch as either
* safe or unknown depending R == 0 or R != 0 conditional.
*/
@@ -9584,7 +9544,7 @@ static int check_return_code(struct bpf_
/* enforce return zero from async callbacks like timer */
if (reg->type != SCALAR_VALUE) {
verbose(env, "In async callback the register R0 is not a known value (%s)\n",
- reg_type_str[reg->type]);
+ reg_type_str(env, reg->type));
return -EINVAL;
}
@@ -9598,7 +9558,7 @@ static int check_return_code(struct bpf_
if (is_subprog) {
if (reg->type != SCALAR_VALUE) {
verbose(env, "At subprogram exit the register R0 is not a scalar value (%s)\n",
- reg_type_str[reg->type]);
+ reg_type_str(env, reg->type));
return -EINVAL;
}
return 0;
@@ -9662,7 +9622,7 @@ static int check_return_code(struct bpf_
if (reg->type != SCALAR_VALUE) {
verbose(env, "At program exit the register R0 is not a known value (%s)\n",
- reg_type_str[reg->type]);
+ reg_type_str(env, reg->type));
return -EINVAL;
}
@@ -10443,7 +10403,7 @@ static bool regsafe(struct bpf_verifier_
return true;
if (rcur->type == NOT_INIT)
return false;
- switch (rold->type) {
+ switch (base_type(rold->type)) {
case SCALAR_VALUE:
if (env->explore_alu_limits)
return false;
@@ -10465,6 +10425,22 @@ static bool regsafe(struct bpf_verifier_
}
case PTR_TO_MAP_KEY:
case PTR_TO_MAP_VALUE:
+ /* a PTR_TO_MAP_VALUE could be safe to use as a
+ * PTR_TO_MAP_VALUE_OR_NULL into the same map.
+ * However, if the old PTR_TO_MAP_VALUE_OR_NULL then got NULL-
+ * checked, doing so could have affected others with the same
+ * id, and we can't check for that because we lost the id when
+ * we converted to a PTR_TO_MAP_VALUE.
+ */
+ if (type_may_be_null(rold->type)) {
+ if (!type_may_be_null(rcur->type))
+ return false;
+ if (memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)))
+ return false;
+ /* Check our ids match any regs they're supposed to */
+ return check_ids(rold->id, rcur->id, idmap);
+ }
+
/* If the new min/max/var_off satisfy the old ones and
* everything else matches, we are OK.
* 'id' is not compared, since it's only used for maps with
@@ -10476,20 +10452,6 @@ static bool regsafe(struct bpf_verifier_
return memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)) == 0 &&
range_within(rold, rcur) &&
tnum_in(rold->var_off, rcur->var_off);
- case PTR_TO_MAP_VALUE_OR_NULL:
- /* a PTR_TO_MAP_VALUE could be safe to use as a
- * PTR_TO_MAP_VALUE_OR_NULL into the same map.
- * However, if the old PTR_TO_MAP_VALUE_OR_NULL then got NULL-
- * checked, doing so could have affected others with the same
- * id, and we can't check for that because we lost the id when
- * we converted to a PTR_TO_MAP_VALUE.
- */
- if (rcur->type != PTR_TO_MAP_VALUE_OR_NULL)
- return false;
- if (memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)))
- return false;
- /* Check our ids match any regs they're supposed to */
- return check_ids(rold->id, rcur->id, idmap);
case PTR_TO_PACKET_META:
case PTR_TO_PACKET:
if (rcur->type != rold->type)
@@ -10518,11 +10480,8 @@ static bool regsafe(struct bpf_verifier_
case PTR_TO_PACKET_END:
case PTR_TO_FLOW_KEYS:
case PTR_TO_SOCKET:
- case PTR_TO_SOCKET_OR_NULL:
case PTR_TO_SOCK_COMMON:
- case PTR_TO_SOCK_COMMON_OR_NULL:
case PTR_TO_TCP_SOCK:
- case PTR_TO_TCP_SOCK_OR_NULL:
case PTR_TO_XDP_SOCK:
/* Only valid matches are exact, which memcmp() above
* would have accepted
@@ -11048,17 +11007,13 @@ next:
/* Return true if it's OK to have the same insn return a different type. */
static bool reg_type_mismatch_ok(enum bpf_reg_type type)
{
- switch (type) {
+ switch (base_type(type)) {
case PTR_TO_CTX:
case PTR_TO_SOCKET:
- case PTR_TO_SOCKET_OR_NULL:
case PTR_TO_SOCK_COMMON:
- case PTR_TO_SOCK_COMMON_OR_NULL:
case PTR_TO_TCP_SOCK:
- case PTR_TO_TCP_SOCK_OR_NULL:
case PTR_TO_XDP_SOCK:
case PTR_TO_BTF_ID:
- case PTR_TO_BTF_ID_OR_NULL:
return false;
default:
return true;
@@ -11282,7 +11237,7 @@ static int do_check(struct bpf_verifier_
if (is_ctx_reg(env, insn->dst_reg)) {
verbose(env, "BPF_ST stores into R%d %s is not allowed\n",
insn->dst_reg,
- reg_type_str[reg_state(env, insn->dst_reg)->type]);
+ reg_type_str(env, reg_state(env, insn->dst_reg)->type));
return -EACCES;
}
--- a/net/core/bpf_sk_storage.c
+++ b/net/core/bpf_sk_storage.c
@@ -929,7 +929,7 @@ static struct bpf_iter_reg bpf_sk_storag
{ offsetof(struct bpf_iter__bpf_sk_storage_map, sk),
PTR_TO_BTF_ID_OR_NULL },
{ offsetof(struct bpf_iter__bpf_sk_storage_map, value),
- PTR_TO_RDWR_BUF_OR_NULL },
+ PTR_TO_RDWR_BUF | PTR_MAYBE_NULL },
},
.seq_info = &iter_seq_info,
};
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -1569,7 +1569,7 @@ static struct bpf_iter_reg sock_map_iter
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__sockmap, key),
- PTR_TO_RDONLY_BUF_OR_NULL },
+ PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL },
{ offsetof(struct bpf_iter__sockmap, sk),
PTR_TO_BTF_ID_OR_NULL },
},
From: Zhang Changzhong <[email protected]>
commit a6ab75cec1e461f8a35559054c146c21428430b8 upstream.
In __bond_release_one(), bond_set_carrier() is only called when bond
device has no slave. Therefore, if we remove the up slave from a master
with two slaves and keep the down slave, the master will remain up.
Fix this by moving bond_set_carrier() out of if (!bond_has_slaves(bond))
statement.
Reproducer:
$ insmod bonding.ko mode=0 miimon=100 max_bonds=2
$ ifconfig bond0 up
$ ifenslave bond0 eth0 eth1
$ ifconfig eth0 down
$ ifenslave -d bond0 eth1
$ cat /proc/net/bonding/bond0
Fixes: ff59c4563a8d ("[PATCH] bonding: support carrier state for master")
Signed-off-by: Zhang Changzhong <[email protected]>
Acked-by: Jay Vosburgh <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/bonding/bond_main.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2377,10 +2377,9 @@ static int __bond_release_one(struct net
bond_select_active_slave(bond);
}
- if (!bond_has_slaves(bond)) {
- bond_set_carrier(bond);
+ bond_set_carrier(bond);
+ if (!bond_has_slaves(bond))
eth_hw_addr_random(bond_dev);
- }
unblock_netpoll_tx();
synchronize_rcu();
From: Hangbin Liu <[email protected]>
commit bbe4c0896d25009a7c86285d2ab024eed4374eea upstream.
Some distros may enable rp_filter by default. After ns1 change addr to
10.0.2.99 and set default router to 10.0.2.1, while the connected router
address is still 10.0.1.1. The router will not reply the arp request
from ns1. Fix it by setting the router's veth0 rp_filter to 0.
Before the fix:
# ./nft_fib.sh
PASS: fib expression did not cause unwanted packet drops
Netns nsrouter-HQkDORO2 fib counter doesn't match expected packet count of 1 for 1.1.1.1
table inet filter {
chain prerouting {
type filter hook prerouting priority filter; policy accept;
ip daddr 1.1.1.1 fib saddr . iif oif missing counter packets 0 bytes 0 drop
ip6 daddr 1c3::c01d fib saddr . iif oif missing counter packets 0 bytes 0 drop
}
}
After the fix:
# ./nft_fib.sh
PASS: fib expression did not cause unwanted packet drops
PASS: fib expression did drop packets for 1.1.1.1
PASS: fib expression did drop packets for 1c3::c01d
Fixes: 82944421243e ("selftests: netfilter: add fib test case")
Signed-off-by: Yi Chen <[email protected]>
Signed-off-by: Hangbin Liu <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/testing/selftests/netfilter/nft_fib.sh | 1 +
1 file changed, 1 insertion(+)
--- a/tools/testing/selftests/netfilter/nft_fib.sh
+++ b/tools/testing/selftests/netfilter/nft_fib.sh
@@ -174,6 +174,7 @@ test_ping() {
ip netns exec ${nsrouter} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
ip netns exec ${nsrouter} sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
ip netns exec ${nsrouter} sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+ip netns exec ${nsrouter} sysctl net.ipv4.conf.veth0.rp_filter=0 > /dev/null
sleep 3
From: Shakeel Butt <[email protected]>
[ Upstream commit 0a3f1e0beacf6cc8ae5f846b0641c1df476e83d6 ]
On an overcommitted system which is running multiple workloads of
varying priorities, it is preferred to trigger an oom-killer to kill a
low priority workload than to let the high priority workload receiving
ENOMEMs. On our memory overcommitted systems, we are seeing a lot of
ENOMEMs instead of oom-kills because io_uring_setup callchain is using
__GFP_NORETRY gfp flag which avoids the oom-killer. Let's remove it and
allow the oom-killer to kill a lower priority job.
Signed-off-by: Shakeel Butt <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
fs/io_uring.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 698db7fb62e06..a92f276f21d9c 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8872,10 +8872,9 @@ static void io_mem_free(void *ptr)
static void *io_mem_alloc(size_t size)
{
- gfp_t gfp_flags = GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN | __GFP_COMP |
- __GFP_NORETRY | __GFP_ACCOUNT;
+ gfp_t gfp = GFP_KERNEL_ACCOUNT | __GFP_ZERO | __GFP_NOWARN | __GFP_COMP;
- return (void *) __get_free_pages(gfp_flags, get_order(size));
+ return (void *) __get_free_pages(gfp, get_order(size));
}
static unsigned long rings_size(unsigned sq_entries, unsigned cq_entries,
--
2.34.1
From: Radu Bulie <[email protected]>
commit 07dd44852be89386ab12210df90a2d78779f3bff upstream.
1588 Single Step Timestamping code path uses a mutex to
enforce atomicity for two events:
- update of ptp single step register
- transmit ptp event packet
Before this patch the mutex was not initialized. This
caused unexpected crashes in the Tx function.
Fixes: c55211892f463 ("dpaa2-eth: support PTP Sync packet one-step timestamping")
Signed-off-by: Radu Bulie <[email protected]>
Reviewed-by: Ioana Ciornei <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4338,7 +4338,7 @@ static int dpaa2_eth_probe(struct fsl_mc
}
INIT_WORK(&priv->tx_onestep_tstamp, dpaa2_eth_tx_onestep_tstamp);
-
+ mutex_init(&priv->onestep_tstamp_lock);
skb_queue_head_init(&priv->tx_skbs);
priv->rx_copybreak = DPAA2_ETH_DEFAULT_COPYBREAK;
From: Eric Dumazet <[email protected]>
commit 75063c9294fb239bbe64eb72141b6871fe526d29 upstream.
Calling nf_defrag_ipv4_disable() instead of nf_defrag_ipv6_disable()
was probably not the intent.
I found this by code inspection, while chasing a possible issue in TPROXY.
Fixes: de8c12110a13 ("netfilter: disable defrag once its no longer needed")
Signed-off-by: Eric Dumazet <[email protected]>
Reviewed-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/netfilter/xt_socket.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -221,7 +221,7 @@ static void socket_mt_destroy(const stru
if (par->family == NFPROTO_IPV4)
nf_defrag_ipv4_disable(par->net);
else if (par->family == NFPROTO_IPV6)
- nf_defrag_ipv4_disable(par->net);
+ nf_defrag_ipv6_disable(par->net);
}
static struct xt_match socket_mt_reg[] __read_mostly = {
From: Mans Rullgard <[email protected]>
commit 017b355bbdc6620fd8fe05fe297f553ce9d855ee upstream.
Check for a hwaccel VLAN tag on rx and use it if present. Otherwise,
use __skb_vlan_pop() like the other tag parsers do. This fixes the case
where the VLAN tag has already been consumed by the master.
Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
Signed-off-by: Mans Rullgard <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/dsa/tag_lan9303.c | 21 +++++++--------------
1 file changed, 7 insertions(+), 14 deletions(-)
--- a/net/dsa/tag_lan9303.c
+++ b/net/dsa/tag_lan9303.c
@@ -77,7 +77,6 @@ static struct sk_buff *lan9303_xmit(stru
static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev)
{
- __be16 *lan9303_tag;
u16 lan9303_tag1;
unsigned int source_port;
@@ -87,14 +86,15 @@ static struct sk_buff *lan9303_rcv(struc
return NULL;
}
- lan9303_tag = dsa_etype_header_pos_rx(skb);
-
- if (lan9303_tag[0] != htons(ETH_P_8021Q)) {
- dev_warn_ratelimited(&dev->dev, "Dropping packet due to invalid VLAN marker\n");
- return NULL;
+ if (skb_vlan_tag_present(skb)) {
+ lan9303_tag1 = skb_vlan_tag_get(skb);
+ __vlan_hwaccel_clear_tag(skb);
+ } else {
+ skb_push_rcsum(skb, ETH_HLEN);
+ __skb_vlan_pop(skb, &lan9303_tag1);
+ skb_pull_rcsum(skb, ETH_HLEN);
}
- lan9303_tag1 = ntohs(lan9303_tag[1]);
source_port = lan9303_tag1 & 0x3;
skb->dev = dsa_master_find_slave(dev, 0, source_port);
@@ -103,13 +103,6 @@ static struct sk_buff *lan9303_rcv(struc
return NULL;
}
- /* remove the special VLAN tag between the MAC addresses
- * and the current ethertype field.
- */
- skb_pull_rcsum(skb, 2 + 2);
-
- dsa_strip_etype_header(skb, LAN9303_TAG_LEN);
-
if (!(lan9303_tag1 & LAN9303_TAG_RX_TRAPPED_TO_CPU))
dsa_default_offload_fwd_mark(skb);
From: Vladimir Zapolskiy <[email protected]>
commit 02a4a69667a2ad32f3b52ca906f19628fbdd8a01 upstream.
There is a minor chance for a race, if a pointer to an i2c-bus subnode
is stored and then reused after releasing its reference, and it would
be sufficient to get one more reference under a loop over children
subnodes.
Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver")
Signed-off-by: Vladimir Zapolskiy <[email protected]>
Reviewed-by: Robert Foss <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/i2c/busses/i2c-qcom-cci.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -558,7 +558,7 @@ static int cci_probe(struct platform_dev
cci->master[idx].adap.quirks = &cci->data->quirks;
cci->master[idx].adap.algo = &cci_algo;
cci->master[idx].adap.dev.parent = dev;
- cci->master[idx].adap.dev.of_node = child;
+ cci->master[idx].adap.dev.of_node = of_node_get(child);
cci->master[idx].master = idx;
cci->master[idx].cci = cci;
@@ -643,8 +643,10 @@ static int cci_probe(struct platform_dev
continue;
ret = i2c_add_adapter(&cci->master[i].adap);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(cci->master[i].adap.dev.of_node);
goto error_i2c;
+ }
}
pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
@@ -656,8 +658,10 @@ static int cci_probe(struct platform_dev
error_i2c:
for (--i ; i >= 0; i--) {
- if (cci->master[i].cci)
+ if (cci->master[i].cci) {
i2c_del_adapter(&cci->master[i].adap);
+ of_node_put(cci->master[i].adap.dev.of_node);
+ }
}
error:
disable_irq(cci->irq);
@@ -673,8 +677,10 @@ static int cci_remove(struct platform_de
int i;
for (i = 0; i < cci->data->num_masters; i++) {
- if (cci->master[i].cci)
+ if (cci->master[i].cci) {
i2c_del_adapter(&cci->master[i].adap);
+ of_node_put(cci->master[i].adap.dev.of_node);
+ }
cci_halt(cci, i);
}
On 2/21/22 09:56, Greg Kroah-Hartman wrote:
> On Mon, Feb 21, 2022 at 09:17:51AM -0800, Guenter Roeck wrote:
>> On 2/21/22 00:46, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 5.16.11 release.
>>> There are 227 patches in this series, all will be posted as a response
>>> to this one. If anyone has any issues with these being applied, please
>>> let me know.
>>>
>>> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
>>> Anything received after that time might be too late.
>>>
>>
>> Building mips:malta_defconfig ... failed
>> --------------
>> Error log:
>> net/netfilter/xt_socket.c: In function 'socket_mt_destroy':
>> net/netfilter/xt_socket.c:224:17: error: implicit declaration of function 'nf_defrag_ipv6_disable'; did you mean 'nf_defrag_ipv4_disable'? [
>>
>> Inherited from upstream.
>
> Ah, fun :(
>
> I'll leave this for now, it's "just" a Kconfig dependancy issue. Does
> upstream know about it?
>
Yes. And, no, it is not just a Kconfig dependency issue.
NETFILTER_XT_MATCH_SOCKET does not historically and should
not depend on IPV6. There is a missing #ifdef in
net/netfilter/xt_socket.c.
Guenter
On Mon, 21 Feb 2022 at 14:46, Greg Kroah-Hartman
<[email protected]> wrote:
>
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Results from Linaro’s test farm.
Regressions on mips for following build errors /warnings.
mips build log:
- gcc-10-malta_defconfig
- gcc-8-malta_defconfig
net/netfilter/xt_socket.c: In function 'socket_mt_destroy':
net/netfilter/xt_socket.c:224:3: error: implicit declaration of
function 'nf_defrag_ipv6_disable'; did you mean
'nf_defrag_ipv4_disable'? [-Werror=implicit-function-declaration]
nf_defrag_ipv6_disable(par->net);
^~~~~~~~~~~~~~~~~~~~~~
nf_defrag_ipv4_disable
cc1: some warnings being treated as errors
Reported-by: Linux Kernel Functional Testing <[email protected]>
Build links,
- https://builds.tuxbuild.com/25PhCYlLyigpYcPp4pVZrKxXo4C/
--
Linaro LKFT
https://lkft.linaro.org
From: Christian König <[email protected]>
[ Upstream commit e8ae38720e1a685fd98cfa5ae118c9d07b45ca79 ]
We probably never trigger this, but the logic inside the check is
inverted.
Signed-off-by: Christian König <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index c875f1cdd2af7..ffc3ce0004e99 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1913,7 +1913,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
unsigned i;
int r;
- if (direct_submit && !ring->sched.ready) {
+ if (!direct_submit && !ring->sched.ready) {
DRM_ERROR("Trying to move memory with ring turned off.\n");
return -EINVAL;
}
--
2.34.1
From: Yang Xu <[email protected]>
[ Upstream commit 01dabed20573804750af5c7bf8d1598a6bf7bf6e ]
If zram-generator package is installed and works, then we can not remove
zram module because zram swap is being used. This case needs a clean zram
environment, change this test by using hot_add/hot_remove interface. So
even zram device is being used, we still can add zram device and remove
them in cleanup.
The two interface was introduced since kernel commit 6566d1a32bf7("zram:
add dynamic device add/remove functionality") in v4.2-rc1. If kernel
supports these two interface, we use hot_add/hot_remove to slove this
problem, if not, just check whether zram is being used or built in, then
skip it on old kernel.
Signed-off-by: Yang Xu <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/zram/zram.sh | 15 +---
tools/testing/selftests/zram/zram01.sh | 3 +-
tools/testing/selftests/zram/zram02.sh | 1 -
tools/testing/selftests/zram/zram_lib.sh | 110 +++++++++++++----------
4 files changed, 66 insertions(+), 63 deletions(-)
diff --git a/tools/testing/selftests/zram/zram.sh b/tools/testing/selftests/zram/zram.sh
index 232e958ec4547..b0b91d9b0dc21 100755
--- a/tools/testing/selftests/zram/zram.sh
+++ b/tools/testing/selftests/zram/zram.sh
@@ -2,9 +2,6 @@
# SPDX-License-Identifier: GPL-2.0
TCID="zram.sh"
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
. ./zram_lib.sh
run_zram () {
@@ -18,14 +15,4 @@ echo ""
check_prereqs
-# check zram module exists
-MODULE_PATH=/lib/modules/`uname -r`/kernel/drivers/block/zram/zram.ko
-if [ -f $MODULE_PATH ]; then
- run_zram
-elif [ -b /dev/zram0 ]; then
- run_zram
-else
- echo "$TCID : No zram.ko module or /dev/zram0 device file not found"
- echo "$TCID : CONFIG_ZRAM is not set"
- exit $ksft_skip
-fi
+run_zram
diff --git a/tools/testing/selftests/zram/zram01.sh b/tools/testing/selftests/zram/zram01.sh
index e9e9eb777e2c7..8f4affe34f3e4 100755
--- a/tools/testing/selftests/zram/zram01.sh
+++ b/tools/testing/selftests/zram/zram01.sh
@@ -33,7 +33,7 @@ zram_algs="lzo"
zram_fill_fs()
{
- for i in $(seq 0 $(($dev_num - 1))); do
+ for i in $(seq $dev_start $dev_end); do
echo "fill zram$i..."
local b=0
while [ true ]; do
@@ -67,7 +67,6 @@ zram_mount
zram_fill_fs
zram_cleanup
-zram_unload
if [ $ERR_CODE -ne 0 ]; then
echo "$TCID : [FAIL]"
diff --git a/tools/testing/selftests/zram/zram02.sh b/tools/testing/selftests/zram/zram02.sh
index e83b404807c09..2418b0c4ed136 100755
--- a/tools/testing/selftests/zram/zram02.sh
+++ b/tools/testing/selftests/zram/zram02.sh
@@ -36,7 +36,6 @@ zram_set_memlimit
zram_makeswap
zram_swapoff
zram_cleanup
-zram_unload
if [ $ERR_CODE -ne 0 ]; then
echo "$TCID : [FAIL]"
diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index f47fc0f27e99e..21ec1966de76c 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -5,10 +5,12 @@
# Author: Alexey Kodanev <[email protected]>
# Modified: Naresh Kamboju <[email protected]>
-MODULE=0
dev_makeswap=-1
dev_mounted=-1
-
+dev_start=0
+dev_end=-1
+module_load=-1
+sys_control=-1
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
kernel_version=`uname -r | cut -d'.' -f1,2`
@@ -46,57 +48,72 @@ zram_cleanup()
{
echo "zram cleanup"
local i=
- for i in $(seq 0 $dev_makeswap); do
+ for i in $(seq $dev_start $dev_makeswap); do
swapoff /dev/zram$i
done
- for i in $(seq 0 $dev_mounted); do
+ for i in $(seq $dev_start $dev_mounted); do
umount /dev/zram$i
done
- for i in $(seq 0 $(($dev_num - 1))); do
+ for i in $(seq $dev_start $dev_end); do
echo 1 > /sys/block/zram${i}/reset
rm -rf zram$i
done
-}
+ if [ $sys_control -eq 1 ]; then
+ for i in $(seq $dev_start $dev_end); do
+ echo $i > /sys/class/zram-control/hot_remove
+ done
+ fi
-zram_unload()
-{
- if [ $MODULE -ne 0 ] ; then
- echo "zram rmmod zram"
+ if [ $module_load -eq 1 ]; then
rmmod zram > /dev/null 2>&1
fi
}
zram_load()
{
- # check zram module exists
- MODULE_PATH=/lib/modules/`uname -r`/kernel/drivers/block/zram/zram.ko
- if [ -f $MODULE_PATH ]; then
- MODULE=1
- echo "create '$dev_num' zram device(s)"
- modprobe zram num_devices=$dev_num
- if [ $? -ne 0 ]; then
- echo "failed to insert zram module"
- exit 1
- fi
-
- dev_num_created=$(ls /dev/zram* | wc -w)
+ echo "create '$dev_num' zram device(s)"
+
+ # zram module loaded, new kernel
+ if [ -d "/sys/class/zram-control" ]; then
+ echo "zram modules already loaded, kernel supports" \
+ "zram-control interface"
+ dev_start=$(ls /dev/zram* | wc -w)
+ dev_end=$(($dev_start + $dev_num - 1))
+ sys_control=1
+
+ for i in $(seq $dev_start $dev_end); do
+ cat /sys/class/zram-control/hot_add > /dev/null
+ done
+
+ echo "all zram devices (/dev/zram$dev_start~$dev_end" \
+ "successfully created"
+ return 0
+ fi
- if [ "$dev_num_created" -ne "$dev_num" ]; then
- echo "unexpected num of devices: $dev_num_created"
- ERR_CODE=-1
+ # detect old kernel or built-in
+ modprobe zram num_devices=$dev_num
+ if [ ! -d "/sys/class/zram-control" ]; then
+ if grep -q '^zram' /proc/modules; then
+ rmmod zram > /dev/null 2>&1
+ if [ $? -ne 0 ]; then
+ echo "zram module is being used on old kernel" \
+ "without zram-control interface"
+ exit $ksft_skip
+ fi
else
- echo "zram load module successful"
+ echo "test needs CONFIG_ZRAM=m on old kernel without" \
+ "zram-control interface"
+ exit $ksft_skip
fi
- elif [ -b /dev/zram0 ]; then
- echo "/dev/zram0 device file found: OK"
- else
- echo "ERROR: No zram.ko module or no /dev/zram0 device found"
- echo "$TCID : CONFIG_ZRAM is not set"
- exit 1
+ modprobe zram num_devices=$dev_num
fi
+
+ module_load=1
+ dev_end=$(($dev_num - 1))
+ echo "all zram devices (/dev/zram0~$dev_end) successfully created"
}
zram_max_streams()
@@ -110,7 +127,7 @@ zram_max_streams()
return 0
fi
- local i=0
+ local i=$dev_start
for max_s in $zram_max_streams; do
local sys_path="/sys/block/zram${i}/max_comp_streams"
echo $max_s > $sys_path || \
@@ -122,7 +139,7 @@ zram_max_streams()
echo "FAIL can't set max_streams '$max_s', get $max_stream"
i=$(($i + 1))
- echo "$sys_path = '$max_streams' ($i/$dev_num)"
+ echo "$sys_path = '$max_streams'"
done
echo "zram max streams: OK"
@@ -132,15 +149,16 @@ zram_compress_alg()
{
echo "test that we can set compression algorithm"
- local algs=$(cat /sys/block/zram0/comp_algorithm)
+ local i=$dev_start
+ local algs=$(cat /sys/block/zram${i}/comp_algorithm)
echo "supported algs: $algs"
- local i=0
+
for alg in $zram_algs; do
local sys_path="/sys/block/zram${i}/comp_algorithm"
echo "$alg" > $sys_path || \
echo "FAIL can't set '$alg' to $sys_path"
i=$(($i + 1))
- echo "$sys_path = '$alg' ($i/$dev_num)"
+ echo "$sys_path = '$alg'"
done
echo "zram set compression algorithm: OK"
@@ -149,14 +167,14 @@ zram_compress_alg()
zram_set_disksizes()
{
echo "set disk size to zram device(s)"
- local i=0
+ local i=$dev_start
for ds in $zram_sizes; do
local sys_path="/sys/block/zram${i}/disksize"
echo "$ds" > $sys_path || \
echo "FAIL can't set '$ds' to $sys_path"
i=$(($i + 1))
- echo "$sys_path = '$ds' ($i/$dev_num)"
+ echo "$sys_path = '$ds'"
done
echo "zram set disksizes: OK"
@@ -166,14 +184,14 @@ zram_set_memlimit()
{
echo "set memory limit to zram device(s)"
- local i=0
+ local i=$dev_start
for ds in $zram_mem_limits; do
local sys_path="/sys/block/zram${i}/mem_limit"
echo "$ds" > $sys_path || \
echo "FAIL can't set '$ds' to $sys_path"
i=$(($i + 1))
- echo "$sys_path = '$ds' ($i/$dev_num)"
+ echo "$sys_path = '$ds'"
done
echo "zram set memory limit: OK"
@@ -182,8 +200,8 @@ zram_set_memlimit()
zram_makeswap()
{
echo "make swap with zram device(s)"
- local i=0
- for i in $(seq 0 $(($dev_num - 1))); do
+ local i=$dev_start
+ for i in $(seq $dev_start $dev_end); do
mkswap /dev/zram$i > err.log 2>&1
if [ $? -ne 0 ]; then
cat err.log
@@ -206,7 +224,7 @@ zram_makeswap()
zram_swapoff()
{
local i=
- for i in $(seq 0 $dev_makeswap); do
+ for i in $(seq $dev_start $dev_end); do
swapoff /dev/zram$i > err.log 2>&1
if [ $? -ne 0 ]; then
cat err.log
@@ -220,7 +238,7 @@ zram_swapoff()
zram_makefs()
{
- local i=0
+ local i=$dev_start
for fs in $zram_filesystems; do
# if requested fs not supported default it to ext2
which mkfs.$fs > /dev/null 2>&1 || fs=ext2
@@ -239,7 +257,7 @@ zram_makefs()
zram_mount()
{
local i=0
- for i in $(seq 0 $(($dev_num - 1))); do
+ for i in $(seq $dev_start $dev_end); do
echo "mount /dev/zram$i"
mkdir zram$i
mount /dev/zram$i zram$i > /dev/null || \
--
2.34.1
From: Johannes Berg <[email protected]>
commit 4c29c1e27a1e178a219b3877d055e6dd643bdfda upstream.
If we run into this error path, we shouldn't unlock the mutex
since it's not locked since. Fix this in the gen2 code as well.
Fixes: eda50cde58de ("iwlwifi: pcie: add context information support")
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/iwlwifi.20220128142706.b8b0dfce16ef.Ie20f0f7b23e5911350a2766524300d2915e7b677@changeid
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -384,8 +384,7 @@ int iwl_trans_pcie_gen2_start_fw(struct
/* This may fail if AMT took ownership of the device */
if (iwl_pcie_prepare_card_hw(trans)) {
IWL_WARN(trans, "Exit HW not ready\n");
- ret = -EIO;
- goto out;
+ return -EIO;
}
iwl_enable_rfkill_int(trans);
From: Christian Hewitt <[email protected]>
[ Upstream commit 08982a1b3aa2611c9c711d24825c9002d28536f4 ]
Add an additional reserved memory region for the BL32 trusted firmware
present in many devices that boot from Amlogic vendor u-boot.
Signed-off-by: Christian Hewitt <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 428449d98c0ae..a3a1ea0f21340 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -107,6 +107,12 @@
no-map;
};
+ /* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+ secmon_reserved_bl32: secmon@5300000 {
+ reg = <0x0 0x05300000 0x0 0x2000000>;
+ no-map;
+ };
+
linux,cma {
compatible = "shared-dma-pool";
reusable;
--
2.34.1
From: Jae Hyun Yoo <[email protected]>
[ Upstream commit 301a5d3ad2432d7829f59432ca0a93a6defbb9a1 ]
Add a checking code when it gets -EPROBE_DEFER while getting a clock
resource. In this case, it doesn't need to print out an error message
because the probing will be re-visited.
Signed-off-by: Jae Hyun Yoo <[email protected]>
Signed-off-by: Joel Stanley <[email protected]>
Reviewed-by: Andrew Jeffery <[email protected]>
Reviewed-by: Iwona Winiarska <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]'
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/soc/aspeed/aspeed-lpc-ctrl.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/aspeed/aspeed-lpc-ctrl.c b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
index 72771e018c42e..258894ed234b3 100644
--- a/drivers/soc/aspeed/aspeed-lpc-ctrl.c
+++ b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
@@ -306,10 +306,9 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
}
lpc_ctrl->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(lpc_ctrl->clk)) {
- dev_err(dev, "couldn't get clock\n");
- return PTR_ERR(lpc_ctrl->clk);
- }
+ if (IS_ERR(lpc_ctrl->clk))
+ return dev_err_probe(dev, PTR_ERR(lpc_ctrl->clk),
+ "couldn't get clock\n");
rc = clk_prepare_enable(lpc_ctrl->clk);
if (rc) {
dev_err(dev, "couldn't enable clock\n");
--
2.34.1
From: Maxim Levitsky <[email protected]>
commit c53bbe2145f51d3bc0438c2db02e737b9b598bf3 upstream.
When the guest doesn't enable paging, and NPT/EPT is disabled, we
use guest't paging CR3's as KVM's shadow paging pointer and
we are technically in direct mode as if we were to use NPT/EPT.
In direct mode we create SPTEs with user mode permissions
because usually in the direct mode the NPT/EPT doesn't
need to restrict access based on guest CPL
(there are MBE/GMET extenstions for that but KVM doesn't use them).
In this special "use guest paging as direct" mode however,
and if CR4.SMAP/CR4.SMEP are enabled, that will make the CPU
fault on each access and KVM will enter endless loop of page faults.
Since page protection doesn't have any meaning in !PG case,
just don't passthrough these bits.
The fix is the same as was done for VMX in commit:
commit 656ec4a4928a ("KVM: VMX: fix SMEP and SMAP without EPT")
This fixes the boot of windows 10 without NPT for good.
(Without this patch, BSP boots, but APs were stuck in endless
loop of page faults, causing the VM boot with 1 CPU)
Signed-off-by: Maxim Levitsky <[email protected]>
Cc: [email protected]
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kvm/svm/svm.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1795,6 +1795,7 @@ void svm_set_cr0(struct kvm_vcpu *vcpu,
{
struct vcpu_svm *svm = to_svm(vcpu);
u64 hcr0 = cr0;
+ bool old_paging = is_paging(vcpu);
#ifdef CONFIG_X86_64
if (vcpu->arch.efer & EFER_LME && !vcpu->arch.guest_state_protected) {
@@ -1811,8 +1812,11 @@ void svm_set_cr0(struct kvm_vcpu *vcpu,
#endif
vcpu->arch.cr0 = cr0;
- if (!npt_enabled)
+ if (!npt_enabled) {
hcr0 |= X86_CR0_PG | X86_CR0_WP;
+ if (old_paging != is_paging(vcpu))
+ svm_set_cr4(vcpu, kvm_read_cr4(vcpu));
+ }
/*
* re-enable caching here because the QEMU bios
@@ -1856,8 +1860,12 @@ void svm_set_cr4(struct kvm_vcpu *vcpu,
svm_flush_tlb(vcpu);
vcpu->arch.cr4 = cr4;
- if (!npt_enabled)
+ if (!npt_enabled) {
cr4 |= X86_CR4_PAE;
+
+ if (!is_paging(vcpu))
+ cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE);
+ }
cr4 |= host_cr4_mce;
to_svm(vcpu)->vmcb->save.cr4 = cr4;
vmcb_mark_dirty(to_svm(vcpu)->vmcb, VMCB_CR);
From: Long Li <[email protected]>
commit 3149efcdf2c6314420c418dfc94de53bfd076b1f upstream.
When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.
This patch also fixes the case where kernel is booting with "numa=off".
Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and support PCI_BUS_RELATIONS2")
Signed-off-by: Long Li <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Tested-by: Purna Pavan Chandra Aekkaladevi <[email protected]>
Acked-by: Lorenzo Pieralisi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/pci/controller/pci-hyperv.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -1899,8 +1899,17 @@ static void hv_pci_assign_numa_node(stru
if (!hv_dev)
continue;
- if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY)
- set_dev_node(&dev->dev, hv_dev->desc.virtual_numa_node);
+ if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY &&
+ hv_dev->desc.virtual_numa_node < num_possible_nodes())
+ /*
+ * The kernel may boot with some NUMA nodes offline
+ * (e.g. in a KDUMP kernel) or with NUMA disabled via
+ * "numa=off". In those cases, adjust the host provided
+ * NUMA node to a valid NUMA node used by the kernel.
+ */
+ set_dev_node(&dev->dev,
+ numa_map_to_online_node(
+ hv_dev->desc.virtual_numa_node));
put_pcichild(hv_dev);
}
From: Yifan Zhang <[email protected]>
commit 9c4f59ea3f865693150edf0c91d1cc6b451360dd upstream.
the 2nd parameter should be smu msg type rather than asic msg index.
Fixes: 7d38d9dc4ecc ("drm/amdgpu: add mode2 reset support for yellow carp")
Signed-off-by: Yifan Zhang <[email protected]>
Acked-by: Aaron Liu <[email protected]>
Reviewed-by: Huang Rui <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
@@ -282,14 +282,9 @@ static int yellow_carp_post_smu_init(str
static int yellow_carp_mode_reset(struct smu_context *smu, int type)
{
- int ret = 0, index = 0;
+ int ret = 0;
- index = smu_cmn_to_asic_specific_index(smu, CMN2ASIC_MAPPING_MSG,
- SMU_MSG_GfxDeviceDriverReset);
- if (index < 0)
- return index == -EACCES ? 0 : index;
-
- ret = smu_cmn_send_smc_msg_with_param(smu, (uint16_t)index, type, NULL);
+ ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GfxDeviceDriverReset, type, NULL);
if (ret)
dev_err(smu->adev->dev, "Failed to mode reset!\n");
From: Sean Christopherson <[email protected]>
commit dd4589eee99db8f61f7b8f7df1531cad3f74a64d upstream.
Remove a WARN on an "AVIC IPI invalid target" exit, the WARN is trivial
to trigger from guest as it will fail on any destination APIC ID that
doesn't exist from the guest's perspective.
Don't bother recording anything in the kernel log, the common tracepoint
for kvm_avic_incomplete_ipi() is sufficient for debugging.
This reverts commit 37ef0c4414c9743ba7f1af4392f0a27a99649f2a.
Cc: [email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kvm/svm/avic.c | 2 --
1 file changed, 2 deletions(-)
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -342,8 +342,6 @@ int avic_incomplete_ipi_interception(str
avic_kick_target_vcpus(vcpu->kvm, apic, icrl, icrh);
break;
case AVIC_IPI_FAILURE_INVALID_TARGET:
- WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n",
- index, vcpu->vcpu_id, icrh, icrl);
break;
case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE:
WARN_ONCE(1, "Invalid backing page\n");
From: Nick Desaulniers <[email protected]>
[ Upstream commit bfb1a7c91fb7758273b4a8d735313d9cc388b502 ]
In __WARN_FLAGS(), we had two asm statements (abbreviated):
asm volatile("ud2");
asm volatile(".pushsection .discard.reachable");
These pair of statements are used to trigger an exception, but then help
objtool understand that for warnings, control flow will be restored
immediately afterwards.
The problem is that volatile is not a compiler barrier. GCC explicitly
documents this:
> Note that the compiler can move even volatile asm instructions
> relative to other code, including across jump instructions.
Also, no clobbers are specified to prevent instructions from subsequent
statements from being scheduled by compiler before the second asm
statement. This can lead to instructions from subsequent statements
being emitted by the compiler before the second asm statement.
Providing a scheduling model such as via -march= options enables the
compiler to better schedule instructions with known latencies to hide
latencies from data hazards compared to inline asm statements in which
latencies are not estimated.
If an instruction gets scheduled by the compiler between the two asm
statements, then objtool will think that it is not reachable, producing
a warning.
To prevent instructions from being scheduled in between the two asm
statements, merge them.
Also remove an unnecessary unreachable() asm annotation from BUG() in
favor of __builtin_unreachable(). objtool is able to track that the ud2
from BUG() terminates control flow within the function.
Link: https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html#Volatile
Link: https://github.com/ClangBuiltLinux/linux/issues/1483
Signed-off-by: Nick Desaulniers <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
arch/x86/include/asm/bug.h | 20 +++++++++++---------
include/linux/compiler.h | 21 +++++----------------
2 files changed, 16 insertions(+), 25 deletions(-)
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 84b87538a15de..bab883c0b6fee 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -22,7 +22,7 @@
#ifdef CONFIG_DEBUG_BUGVERBOSE
-#define _BUG_FLAGS(ins, flags) \
+#define _BUG_FLAGS(ins, flags, extra) \
do { \
asm_inline volatile("1:\t" ins "\n" \
".pushsection __bug_table,\"aw\"\n" \
@@ -31,7 +31,8 @@ do { \
"\t.word %c1" "\t# bug_entry::line\n" \
"\t.word %c2" "\t# bug_entry::flags\n" \
"\t.org 2b+%c3\n" \
- ".popsection" \
+ ".popsection\n" \
+ extra \
: : "i" (__FILE__), "i" (__LINE__), \
"i" (flags), \
"i" (sizeof(struct bug_entry))); \
@@ -39,14 +40,15 @@ do { \
#else /* !CONFIG_DEBUG_BUGVERBOSE */
-#define _BUG_FLAGS(ins, flags) \
+#define _BUG_FLAGS(ins, flags, extra) \
do { \
asm_inline volatile("1:\t" ins "\n" \
".pushsection __bug_table,\"aw\"\n" \
"2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n" \
"\t.word %c0" "\t# bug_entry::flags\n" \
"\t.org 2b+%c1\n" \
- ".popsection" \
+ ".popsection\n" \
+ extra \
: : "i" (flags), \
"i" (sizeof(struct bug_entry))); \
} while (0)
@@ -55,7 +57,7 @@ do { \
#else
-#define _BUG_FLAGS(ins, flags) asm volatile(ins)
+#define _BUG_FLAGS(ins, flags, extra) asm volatile(ins)
#endif /* CONFIG_GENERIC_BUG */
@@ -63,8 +65,8 @@ do { \
#define BUG() \
do { \
instrumentation_begin(); \
- _BUG_FLAGS(ASM_UD2, 0); \
- unreachable(); \
+ _BUG_FLAGS(ASM_UD2, 0, ""); \
+ __builtin_unreachable(); \
} while (0)
/*
@@ -75,9 +77,9 @@ do { \
*/
#define __WARN_FLAGS(flags) \
do { \
+ __auto_type f = BUGFLAG_WARNING|(flags); \
instrumentation_begin(); \
- _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags)); \
- annotate_reachable(); \
+ _BUG_FLAGS(ASM_UD2, f, ASM_REACHABLE); \
instrumentation_end(); \
} while (0)
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 429dcebe2b992..0f7fd205ab7ea 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -117,14 +117,6 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
*/
#define __stringify_label(n) #n
-#define __annotate_reachable(c) ({ \
- asm volatile(__stringify_label(c) ":\n\t" \
- ".pushsection .discard.reachable\n\t" \
- ".long " __stringify_label(c) "b - .\n\t" \
- ".popsection\n\t" : : "i" (c)); \
-})
-#define annotate_reachable() __annotate_reachable(__COUNTER__)
-
#define __annotate_unreachable(c) ({ \
asm volatile(__stringify_label(c) ":\n\t" \
".pushsection .discard.unreachable\n\t" \
@@ -133,24 +125,21 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
})
#define annotate_unreachable() __annotate_unreachable(__COUNTER__)
-#define ASM_UNREACHABLE \
- "999:\n\t" \
- ".pushsection .discard.unreachable\n\t" \
- ".long 999b - .\n\t" \
+#define ASM_REACHABLE \
+ "998:\n\t" \
+ ".pushsection .discard.reachable\n\t" \
+ ".long 998b - .\n\t" \
".popsection\n\t"
/* Annotate a C jump table to allow objtool to follow the code flow */
#define __annotate_jump_table __section(".rodata..c_jump_table")
#else
-#define annotate_reachable()
#define annotate_unreachable()
+# define ASM_REACHABLE
#define __annotate_jump_table
#endif
-#ifndef ASM_UNREACHABLE
-# define ASM_UNREACHABLE
-#endif
#ifndef unreachable
# define unreachable() do { \
annotate_unreachable(); \
--
2.34.1
From: Jesse Brandeburg <[email protected]>
commit 86006f996346e8a5a1ea80637ec949ceeea4ecbc upstream.
The COMMS package can enable the hardware parser to recognize IPSEC
frames with ESP header and SPI identifier. If this package is available
and configured for loading in /lib/firmware, then the driver will
succeed in enabling this protocol type for RSS.
This in turn allows the hardware to hash over the SPI and use it to pick
a consistent receive queue for the same secure flow. Without this all
traffic is steered to the same queue for multiple traffic threads from
the same IP address. For that reason this is marked as a fix, as the
driver supports the model, but it wasn't enabled.
If the package is not available, adding this type will fail, but the
failure is ignored on purpose as it has no negative affect.
Fixes: c90ed40cefe1 ("ice: Enable writing hardware filtering tables")
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Gurucharan G <[email protected]> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/intel/ice/ice_lib.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -1641,6 +1641,12 @@ static void ice_vsi_set_rss_flow_fld(str
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi = %d, error = %s\n",
vsi_num, ice_stat_str(status));
+
+ status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_ESP_SPI,
+ ICE_FLOW_SEG_HDR_ESP);
+ if (status)
+ dev_dbg(dev, "ice_add_rss_cfg failed for esp/spi flow, vsi = %d, error = %d\n",
+ vsi_num, status);
}
/**
From: Danie du Toit <[email protected]>
commit 7dbcda584eaa5bdb4a281c379207dacc1a5e6081 upstream.
IPv6 GRE tunnels are not being offloaded, this is caused by a missing
netdev offload check. The functionality of IPv6 GRE tunnel offloading
was previously added but this check was not included. Adding the
ip6gretap check allows IPv6 GRE tunnels to be offloaded correctly.
Fixes: f7536ffb0986 ("nfp: flower: Allow ipv6gretap interface for offloading")
Signed-off-by: Danie du Toit <[email protected]>
Signed-off-by: Louis Peens <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
index 784292b16290..1543e47456d5 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -723,6 +723,8 @@ static inline bool nfp_fl_is_netdev_to_offload(struct net_device *netdev)
return true;
if (netif_is_gretap(netdev))
return true;
+ if (netif_is_ip6gretap(netdev))
+ return true;
return false;
}
--
2.35.1
From: Luca Coelho <[email protected]>
commit 92883a524ae918736a7b8acef98698075507b8c1 upstream.
This feature has been deprecated and should not be used anymore. With
newer firmwares, namely *-67.ucode and above, trying to use it causes an
assertion failure in the FW, similar to this:
[Tue Jan 11 20:05:24 2022] iwlwifi 0000:04:00.0: 0x00001062 | ADVANCED_SYSASSERT
In order to prevent this feature from being used, remove it entirely
and get rid of the Kconfig option that
enables it (IWLWIFI_BCAST_FILTERING).
Fixes: cbaa6aeedee5 ("iwlwifi: bump FW API to 67 for AX devices")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215488
Cc: [email protected] # 5.16.x
Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/iwlwifi.20220128144623.9241e049f13e.Ia4f282813ca2ddd24c13427823519113f2bbebf2@changeid
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/intel/iwlwifi/Kconfig | 13 -
drivers/net/wireless/intel/iwlwifi/fw/api/commands.h | 5
drivers/net/wireless/intel/iwlwifi/fw/api/filter.h | 88 ------
drivers/net/wireless/intel/iwlwifi/fw/file.h | 2
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 203 ----------------
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 240 -------------------
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 13 -
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 1
8 files changed, 565 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/Kconfig
+++ b/drivers/net/wireless/intel/iwlwifi/Kconfig
@@ -79,19 +79,6 @@ config IWLWIFI_OPMODE_MODULAR
comment "WARNING: iwlwifi is useless without IWLDVM or IWLMVM"
depends on IWLDVM=n && IWLMVM=n
-config IWLWIFI_BCAST_FILTERING
- bool "Enable broadcast filtering"
- depends on IWLMVM
- help
- Say Y here to enable default bcast filtering configuration.
-
- Enabling broadcast filtering will drop any incoming wireless
- broadcast frames, except some very specific predefined
- patterns (e.g. incoming arp requests).
-
- If unsure, don't enable this option, as some programs might
- expect incoming broadcasts for their normal operations.
-
menu "Debugging Options"
config IWLWIFI_DEBUG
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
@@ -506,11 +506,6 @@ enum iwl_legacy_cmds {
DEBUG_LOG_MSG = 0xf7,
/**
- * @BCAST_FILTER_CMD: &struct iwl_bcast_filter_cmd
- */
- BCAST_FILTER_CMD = 0xcf,
-
- /**
* @MCAST_FILTER_CMD: &struct iwl_mcast_filter_cmd
*/
MCAST_FILTER_CMD = 0xd0,
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/filter.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/filter.h
@@ -36,92 +36,4 @@ struct iwl_mcast_filter_cmd {
u8 addr_list[0];
} __packed; /* MCAST_FILTERING_CMD_API_S_VER_1 */
-#define MAX_BCAST_FILTERS 8
-#define MAX_BCAST_FILTER_ATTRS 2
-
-/**
- * enum iwl_mvm_bcast_filter_attr_offset - written by fw for each Rx packet
- * @BCAST_FILTER_OFFSET_PAYLOAD_START: offset is from payload start.
- * @BCAST_FILTER_OFFSET_IP_END: offset is from ip header end (i.e.
- * start of ip payload).
- */
-enum iwl_mvm_bcast_filter_attr_offset {
- BCAST_FILTER_OFFSET_PAYLOAD_START = 0,
- BCAST_FILTER_OFFSET_IP_END = 1,
-};
-
-/**
- * struct iwl_fw_bcast_filter_attr - broadcast filter attribute
- * @offset_type: &enum iwl_mvm_bcast_filter_attr_offset.
- * @offset: starting offset of this pattern.
- * @reserved1: reserved
- * @val: value to match - big endian (MSB is the first
- * byte to match from offset pos).
- * @mask: mask to match (big endian).
- */
-struct iwl_fw_bcast_filter_attr {
- u8 offset_type;
- u8 offset;
- __le16 reserved1;
- __be32 val;
- __be32 mask;
-} __packed; /* BCAST_FILTER_ATT_S_VER_1 */
-
-/**
- * enum iwl_mvm_bcast_filter_frame_type - filter frame type
- * @BCAST_FILTER_FRAME_TYPE_ALL: consider all frames.
- * @BCAST_FILTER_FRAME_TYPE_IPV4: consider only ipv4 frames
- */
-enum iwl_mvm_bcast_filter_frame_type {
- BCAST_FILTER_FRAME_TYPE_ALL = 0,
- BCAST_FILTER_FRAME_TYPE_IPV4 = 1,
-};
-
-/**
- * struct iwl_fw_bcast_filter - broadcast filter
- * @discard: discard frame (1) or let it pass (0).
- * @frame_type: &enum iwl_mvm_bcast_filter_frame_type.
- * @reserved1: reserved
- * @num_attrs: number of valid attributes in this filter.
- * @attrs: attributes of this filter. a filter is considered matched
- * only when all its attributes are matched (i.e. AND relationship)
- */
-struct iwl_fw_bcast_filter {
- u8 discard;
- u8 frame_type;
- u8 num_attrs;
- u8 reserved1;
- struct iwl_fw_bcast_filter_attr attrs[MAX_BCAST_FILTER_ATTRS];
-} __packed; /* BCAST_FILTER_S_VER_1 */
-
-/**
- * struct iwl_fw_bcast_mac - per-mac broadcast filtering configuration.
- * @default_discard: default action for this mac (discard (1) / pass (0)).
- * @reserved1: reserved
- * @attached_filters: bitmap of relevant filters for this mac.
- */
-struct iwl_fw_bcast_mac {
- u8 default_discard;
- u8 reserved1;
- __le16 attached_filters;
-} __packed; /* BCAST_MAC_CONTEXT_S_VER_1 */
-
-/**
- * struct iwl_bcast_filter_cmd - broadcast filtering configuration
- * @disable: enable (0) / disable (1)
- * @max_bcast_filters: max number of filters (MAX_BCAST_FILTERS)
- * @max_macs: max number of macs (NUM_MAC_INDEX_DRIVER)
- * @reserved1: reserved
- * @filters: broadcast filters
- * @macs: broadcast filtering configuration per-mac
- */
-struct iwl_bcast_filter_cmd {
- u8 disable;
- u8 max_bcast_filters;
- u8 max_macs;
- u8 reserved1;
- struct iwl_fw_bcast_filter filters[MAX_BCAST_FILTERS];
- struct iwl_fw_bcast_mac macs[NUM_MAC_INDEX_DRIVER];
-} __packed; /* BCAST_FILTERING_HCMD_API_S_VER_1 */
-
#endif /* __iwl_fw_api_filter_h__ */
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -182,7 +182,6 @@ struct iwl_ucode_capa {
* @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE: new NS offload (large version)
* @IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT: General support for uAPSD
* @IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD: P2P client supports uAPSD power save
- * @IWL_UCODE_TLV_FLAGS_BCAST_FILTERING: uCode supports broadcast filtering.
* @IWL_UCODE_TLV_FLAGS_EBS_SUPPORT: this uCode image supports EBS.
*/
enum iwl_ucode_tlv_flag {
@@ -197,7 +196,6 @@ enum iwl_ucode_tlv_flag {
IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT = BIT(24),
IWL_UCODE_TLV_FLAGS_EBS_SUPPORT = BIT(25),
IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD = BIT(26),
- IWL_UCODE_TLV_FLAGS_BCAST_FILTERING = BIT(29),
};
typedef unsigned int __bitwise iwl_ucode_tlv_api_t;
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1361,189 +1361,6 @@ static ssize_t iwl_dbgfs_dbg_time_point_
return count;
}
-#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
-static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_mvm *mvm = file->private_data;
- struct iwl_bcast_filter_cmd cmd;
- const struct iwl_fw_bcast_filter *filter;
- char *buf;
- int bufsz = 1024;
- int i, j, pos = 0;
- ssize_t ret;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- mutex_lock(&mvm->mutex);
- if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
- ADD_TEXT("None\n");
- mutex_unlock(&mvm->mutex);
- goto out;
- }
- mutex_unlock(&mvm->mutex);
-
- for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
- filter = &cmd.filters[i];
-
- ADD_TEXT("Filter [%d]:\n", i);
- ADD_TEXT("\tDiscard=%d\n", filter->discard);
- ADD_TEXT("\tFrame Type: %s\n",
- filter->frame_type ? "IPv4" : "Generic");
-
- for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
- const struct iwl_fw_bcast_filter_attr *attr;
-
- attr = &filter->attrs[j];
- if (!attr->mask)
- break;
-
- ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
- j, attr->offset,
- attr->offset_type ? "IP End" :
- "Payload Start",
- be32_to_cpu(attr->mask),
- be32_to_cpu(attr->val),
- le16_to_cpu(attr->reserved1));
- }
- }
-out:
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
- size_t count, loff_t *ppos)
-{
- int pos, next_pos;
- struct iwl_fw_bcast_filter filter = {};
- struct iwl_bcast_filter_cmd cmd;
- u32 filter_id, attr_id, mask, value;
- int err = 0;
-
- if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
- &filter.frame_type, &pos) != 3)
- return -EINVAL;
-
- if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
- filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
- return -EINVAL;
-
- for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
- attr_id++) {
- struct iwl_fw_bcast_filter_attr *attr =
- &filter.attrs[attr_id];
-
- if (pos >= count)
- break;
-
- if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
- &attr->offset, &attr->offset_type,
- &mask, &value, &next_pos) != 4)
- return -EINVAL;
-
- attr->mask = cpu_to_be32(mask);
- attr->val = cpu_to_be32(value);
- if (mask)
- filter.num_attrs++;
-
- pos += next_pos;
- }
-
- mutex_lock(&mvm->mutex);
- memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
- &filter, sizeof(filter));
-
- /* send updated bcast filtering configuration */
- if (iwl_mvm_firmware_running(mvm) &&
- mvm->dbgfs_bcast_filtering.override &&
- iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
- err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
- sizeof(cmd), &cmd);
- mutex_unlock(&mvm->mutex);
-
- return err ?: count;
-}
-
-static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_mvm *mvm = file->private_data;
- struct iwl_bcast_filter_cmd cmd;
- char *buf;
- int bufsz = 1024;
- int i, pos = 0;
- ssize_t ret;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- mutex_lock(&mvm->mutex);
- if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
- ADD_TEXT("None\n");
- mutex_unlock(&mvm->mutex);
- goto out;
- }
- mutex_unlock(&mvm->mutex);
-
- for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
- const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
-
- ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
- i, mac->default_discard, mac->attached_filters);
- }
-out:
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
- char *buf, size_t count,
- loff_t *ppos)
-{
- struct iwl_bcast_filter_cmd cmd;
- struct iwl_fw_bcast_mac mac = {};
- u32 mac_id, attached_filters;
- int err = 0;
-
- if (!mvm->bcast_filters)
- return -ENOENT;
-
- if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
- &attached_filters) != 3)
- return -EINVAL;
-
- if (mac_id >= ARRAY_SIZE(cmd.macs) ||
- mac.default_discard > 1 ||
- attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
- return -EINVAL;
-
- mac.attached_filters = cpu_to_le16(attached_filters);
-
- mutex_lock(&mvm->mutex);
- memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
- &mac, sizeof(mac));
-
- /* send updated bcast filtering configuration */
- if (iwl_mvm_firmware_running(mvm) &&
- mvm->dbgfs_bcast_filtering.override &&
- iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
- err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
- sizeof(cmd), &cmd);
- mutex_unlock(&mvm->mutex);
-
- return err ?: count;
-}
-#endif
-
#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
@@ -1873,11 +1690,6 @@ MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon
MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
-MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
-MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
-#endif
-
#ifdef CONFIG_ACPI
MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
#endif
@@ -2088,21 +1900,6 @@ void iwl_mvm_dbgfs_register(struct iwl_m
MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
- if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
- bcast_dir = debugfs_create_dir("bcast_filtering",
- mvm->debugfs_dir);
-
- debugfs_create_bool("override", 0600, bcast_dir,
- &mvm->dbgfs_bcast_filtering.override);
-
- MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
- bcast_dir, 0600);
- MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
- bcast_dir, 0600);
- }
-#endif
-
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -55,79 +55,6 @@ static const struct ieee80211_iface_comb
},
};
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
-/*
- * Use the reserved field to indicate magic values.
- * these values will only be used internally by the driver,
- * and won't make it to the fw (reserved will be 0).
- * BC_FILTER_MAGIC_IP - configure the val of this attribute to
- * be the vif's ip address. in case there is not a single
- * ip address (0, or more than 1), this attribute will
- * be skipped.
- * BC_FILTER_MAGIC_MAC - set the val of this attribute to
- * the LSB bytes of the vif's mac address
- */
-enum {
- BC_FILTER_MAGIC_NONE = 0,
- BC_FILTER_MAGIC_IP,
- BC_FILTER_MAGIC_MAC,
-};
-
-static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
- {
- /* arp */
- .discard = 0,
- .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
- .attrs = {
- {
- /* frame type - arp, hw type - ethernet */
- .offset_type =
- BCAST_FILTER_OFFSET_PAYLOAD_START,
- .offset = sizeof(rfc1042_header),
- .val = cpu_to_be32(0x08060001),
- .mask = cpu_to_be32(0xffffffff),
- },
- {
- /* arp dest ip */
- .offset_type =
- BCAST_FILTER_OFFSET_PAYLOAD_START,
- .offset = sizeof(rfc1042_header) + 2 +
- sizeof(struct arphdr) +
- ETH_ALEN + sizeof(__be32) +
- ETH_ALEN,
- .mask = cpu_to_be32(0xffffffff),
- /* mark it as special field */
- .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
- },
- },
- },
- {
- /* dhcp offer bcast */
- .discard = 0,
- .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
- .attrs = {
- {
- /* udp dest port - 68 (bootp client)*/
- .offset_type = BCAST_FILTER_OFFSET_IP_END,
- .offset = offsetof(struct udphdr, dest),
- .val = cpu_to_be32(0x00440000),
- .mask = cpu_to_be32(0xffff0000),
- },
- {
- /* dhcp - lsb bytes of client hw address */
- .offset_type = BCAST_FILTER_OFFSET_IP_END,
- .offset = 38,
- .mask = cpu_to_be32(0xffffffff),
- /* mark it as special field */
- .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
- },
- },
- },
- /* last filter must be empty */
- {},
-};
-#endif
-
static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
.max_peers = IWL_MVM_TOF_MAX_APS,
.report_ap_tsf = 1,
@@ -683,11 +610,6 @@ int iwl_mvm_mac_setup_register(struct iw
}
#endif
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
- /* assign default bcast filtering configuration */
- mvm->bcast_filters = iwl_mvm_default_bcast_filters;
-#endif
-
ret = iwl_mvm_leds_init(mvm);
if (ret)
return ret;
@@ -1803,162 +1725,6 @@ static void iwl_mvm_config_iface_filter(
mutex_unlock(&mvm->mutex);
}
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
-struct iwl_bcast_iter_data {
- struct iwl_mvm *mvm;
- struct iwl_bcast_filter_cmd *cmd;
- u8 current_filter;
-};
-
-static void
-iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
- const struct iwl_fw_bcast_filter *in_filter,
- struct iwl_fw_bcast_filter *out_filter)
-{
- struct iwl_fw_bcast_filter_attr *attr;
- int i;
-
- memcpy(out_filter, in_filter, sizeof(*out_filter));
-
- for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
- attr = &out_filter->attrs[i];
-
- if (!attr->mask)
- break;
-
- switch (attr->reserved1) {
- case cpu_to_le16(BC_FILTER_MAGIC_IP):
- if (vif->bss_conf.arp_addr_cnt != 1) {
- attr->mask = 0;
- continue;
- }
-
- attr->val = vif->bss_conf.arp_addr_list[0];
- break;
- case cpu_to_le16(BC_FILTER_MAGIC_MAC):
- attr->val = *(__be32 *)&vif->addr[2];
- break;
- default:
- break;
- }
- attr->reserved1 = 0;
- out_filter->num_attrs++;
- }
-}
-
-static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
- struct ieee80211_vif *vif)
-{
- struct iwl_bcast_iter_data *data = _data;
- struct iwl_mvm *mvm = data->mvm;
- struct iwl_bcast_filter_cmd *cmd = data->cmd;
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
- struct iwl_fw_bcast_mac *bcast_mac;
- int i;
-
- if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
- return;
-
- bcast_mac = &cmd->macs[mvmvif->id];
-
- /*
- * enable filtering only for associated stations, but not for P2P
- * Clients
- */
- if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
- !vif->bss_conf.assoc)
- return;
-
- bcast_mac->default_discard = 1;
-
- /* copy all configured filters */
- for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
- /*
- * Make sure we don't exceed our filters limit.
- * if there is still a valid filter to be configured,
- * be on the safe side and just allow bcast for this mac.
- */
- if (WARN_ON_ONCE(data->current_filter >=
- ARRAY_SIZE(cmd->filters))) {
- bcast_mac->default_discard = 0;
- bcast_mac->attached_filters = 0;
- break;
- }
-
- iwl_mvm_set_bcast_filter(vif,
- &mvm->bcast_filters[i],
- &cmd->filters[data->current_filter]);
-
- /* skip current filter if it contains no attributes */
- if (!cmd->filters[data->current_filter].num_attrs)
- continue;
-
- /* attach the filter to current mac */
- bcast_mac->attached_filters |=
- cpu_to_le16(BIT(data->current_filter));
-
- data->current_filter++;
- }
-}
-
-bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
- struct iwl_bcast_filter_cmd *cmd)
-{
- struct iwl_bcast_iter_data iter_data = {
- .mvm = mvm,
- .cmd = cmd,
- };
-
- if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
- return false;
-
- memset(cmd, 0, sizeof(*cmd));
- cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
- cmd->max_macs = ARRAY_SIZE(cmd->macs);
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- /* use debugfs filters/macs if override is configured */
- if (mvm->dbgfs_bcast_filtering.override) {
- memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
- sizeof(cmd->filters));
- memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
- sizeof(cmd->macs));
- return true;
- }
-#endif
-
- /* if no filters are configured, do nothing */
- if (!mvm->bcast_filters)
- return false;
-
- /* configure and attach these filters for each associated sta vif */
- ieee80211_iterate_active_interfaces(
- mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
- iwl_mvm_bcast_filter_iterator, &iter_data);
-
- return true;
-}
-
-static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
-{
- struct iwl_bcast_filter_cmd cmd;
-
- if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
- return 0;
-
- if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
- return 0;
-
- return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
- sizeof(cmd), &cmd);
-}
-#else
-static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
-{
- return 0;
-}
-#endif
-
static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
@@ -2469,7 +2235,6 @@ static void iwl_mvm_bss_info_changed_sta
}
iwl_mvm_recalc_multicast(mvm);
- iwl_mvm_configure_bcast_filter(mvm);
/* reset rssi values */
mvmvif->bf_data.ave_beacon_signal = 0;
@@ -2519,11 +2284,6 @@ static void iwl_mvm_bss_info_changed_sta
}
}
- if (changes & BSS_CHANGED_ARP_FILTER) {
- IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
- iwl_mvm_configure_bcast_filter(mvm);
- }
-
if (changes & BSS_CHANGED_BANDWIDTH)
iwl_mvm_apply_fw_smps_request(vif);
}
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -872,17 +872,6 @@ struct iwl_mvm {
/* rx chain antennas set through debugfs for the scan command */
u8 scan_rx_ant;
-#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
- /* broadcast filters to configure for each associated station */
- const struct iwl_fw_bcast_filter *bcast_filters;
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- struct {
- bool override;
- struct iwl_bcast_filter_cmd cmd;
- } dbgfs_bcast_filtering;
-#endif
-#endif
-
/* Internal station */
struct iwl_mvm_int_sta aux_sta;
struct iwl_mvm_int_sta snif_sta;
@@ -1570,8 +1559,6 @@ int iwl_mvm_up(struct iwl_mvm *mvm);
int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
-bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
- struct iwl_bcast_filter_cmd *cmd);
/*
* FW notifications / CMD responses handlers
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -474,7 +474,6 @@ static const struct iwl_hcmd_names iwl_m
HCMD_NAME(MCC_CHUB_UPDATE_CMD),
HCMD_NAME(MARKER_CMD),
HCMD_NAME(BT_PROFILE_NOTIFICATION),
- HCMD_NAME(BCAST_FILTER_CMD),
HCMD_NAME(MCAST_FILTER_CMD),
HCMD_NAME(REPLY_SF_CFG_CMD),
HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
From: Amir Goldstein <[email protected]>
commit dd5a927e411836eaef44eb9b00fece615e82e242 upstream.
'setcifsacl -g <SID>' silently fails to set the group SID on server.
Actually, the bug existed since commit 438471b67963 ("CIFS: Add support
for setting owner info, dos attributes, and create time"), but this fix
will not apply cleanly to kernel versions <= v5.10.
Fixes: 3970acf7ddb9 ("SMB3: Add support for getting and setting SACLs")
Cc: [email protected] # 5.11+
Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Steve French <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/cifs/xattr.c | 2 ++
1 file changed, 2 insertions(+)
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -175,11 +175,13 @@ static int cifs_xattr_set(const struct x
switch (handler->flags) {
case XATTR_CIFS_NTSD_FULL:
aclflags = (CIFS_ACL_OWNER |
+ CIFS_ACL_GROUP |
CIFS_ACL_DACL |
CIFS_ACL_SACL);
break;
case XATTR_CIFS_NTSD:
aclflags = (CIFS_ACL_OWNER |
+ CIFS_ACL_GROUP |
CIFS_ACL_DACL);
break;
case XATTR_CIFS_ACL:
From: Jim Mattson <[email protected]>
[ Upstream commit b8bfee85f1307426e0242d654f3a14c06ef639c5 ]
AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of
a PerfEvtSeln MSR. Don't drop the high nybble when setting up the
config field of a perf_event_attr structure for a call to
perf_event_create_kernel_counter().
Fixes: ca724305a2b0 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Reported-by: Stephane Eranian <[email protected]>
Signed-off-by: Jim Mattson <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: David Dunn <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
arch/x86/kvm/pmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 3b3ccf5b11064..944137ed1f901 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -95,7 +95,7 @@ static void kvm_perf_overflow_intr(struct perf_event *perf_event,
}
static void pmc_reprogram_counter(struct kvm_pmc *pmc, u32 type,
- unsigned config, bool exclude_user,
+ u64 config, bool exclude_user,
bool exclude_kernel, bool intr,
bool in_tx, bool in_tx_cp)
{
@@ -173,7 +173,8 @@ static bool pmc_resume_counter(struct kvm_pmc *pmc)
void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
{
- unsigned config, type = PERF_TYPE_RAW;
+ u64 config;
+ u32 type = PERF_TYPE_RAW;
struct kvm *kvm = pmc->vcpu->kvm;
struct kvm_pmu_event_filter *filter;
int i;
--
2.34.1
From: Slark Xiao <[email protected]>
[ Upstream commit 8ecbb179286cbc91810c16caeb3396e06305cd0c ]
Dell DW5829e same as DW5821e except the CAT level.
DW5821e supports CAT16 but DW5829e supports CAT9.
Also, DW5829e includes normal and eSIM type.
Please see below test evidence:
T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 5 Spd=5000 MxCh= 0
D: Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1
P: Vendor=413c ProdID=81e6 Rev=03.18
S: Manufacturer=Dell Inc.
S: Product=DW5829e Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 7 Spd=5000 MxCh= 0
D: Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1
P: Vendor=413c ProdID=81e4 Rev=03.18
S: Manufacturer=Dell Inc.
S: Product=DW5829e-eSIM Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
Signed-off-by: Slark Xiao <[email protected]>
Acked-by: Bjørn Mork <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/net/usb/qmi_wwan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index f510e82194705..2f2abc42cecea 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1399,6 +1399,8 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */
{QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/
+ {QMI_FIXED_INTF(0x413c, 0x81e4, 0)}, /* Dell Wireless 5829e with eSIM support*/
+ {QMI_FIXED_INTF(0x413c, 0x81e6, 0)}, /* Dell Wireless 5829e */
{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
{QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
--
2.34.1
From: Waiman Long <[email protected]>
commit ddc204b517e60ae64db34f9832dc41dafa77c751 upstream.
I was made aware of the following lockdep splat:
[ 2516.308763] =====================================================
[ 2516.309085] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
[ 2516.309433] 5.14.0-51.el9.aarch64+debug #1 Not tainted
[ 2516.309703] -----------------------------------------------------
[ 2516.310149] stress-ng/153663 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[ 2516.310512] ffff0000e422b198 (&newf->file_lock){+.+.}-{2:2}, at: fd_install+0x368/0x4f0
[ 2516.310944]
and this task is already holding:
[ 2516.311248] ffff0000c08140d8 (&sighand->siglock){-.-.}-{2:2}, at: copy_process+0x1e2c/0x3e80
[ 2516.311804] which would create a new lock dependency:
[ 2516.312066] (&sighand->siglock){-.-.}-{2:2} -> (&newf->file_lock){+.+.}-{2:2}
[ 2516.312446]
but this new dependency connects a HARDIRQ-irq-safe lock:
[ 2516.312983] (&sighand->siglock){-.-.}-{2:2}
:
[ 2516.330700] Possible interrupt unsafe locking scenario:
[ 2516.331075] CPU0 CPU1
[ 2516.331328] ---- ----
[ 2516.331580] lock(&newf->file_lock);
[ 2516.331790] local_irq_disable();
[ 2516.332231] lock(&sighand->siglock);
[ 2516.332579] lock(&newf->file_lock);
[ 2516.332922] <Interrupt>
[ 2516.333069] lock(&sighand->siglock);
[ 2516.333291]
*** DEADLOCK ***
[ 2516.389845]
stack backtrace:
[ 2516.390101] CPU: 3 PID: 153663 Comm: stress-ng Kdump: loaded Not tainted 5.14.0-51.el9.aarch64+debug #1
[ 2516.390756] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 2516.391155] Call trace:
[ 2516.391302] dump_backtrace+0x0/0x3e0
[ 2516.391518] show_stack+0x24/0x30
[ 2516.391717] dump_stack_lvl+0x9c/0xd8
[ 2516.391938] dump_stack+0x1c/0x38
[ 2516.392247] print_bad_irq_dependency+0x620/0x710
[ 2516.392525] check_irq_usage+0x4fc/0x86c
[ 2516.392756] check_prev_add+0x180/0x1d90
[ 2516.392988] validate_chain+0x8e0/0xee0
[ 2516.393215] __lock_acquire+0x97c/0x1e40
[ 2516.393449] lock_acquire.part.0+0x240/0x570
[ 2516.393814] lock_acquire+0x90/0xb4
[ 2516.394021] _raw_spin_lock+0xe8/0x154
[ 2516.394244] fd_install+0x368/0x4f0
[ 2516.394451] copy_process+0x1f5c/0x3e80
[ 2516.394678] kernel_clone+0x134/0x660
[ 2516.394895] __do_sys_clone3+0x130/0x1f4
[ 2516.395128] __arm64_sys_clone3+0x5c/0x7c
[ 2516.395478] invoke_syscall.constprop.0+0x78/0x1f0
[ 2516.395762] el0_svc_common.constprop.0+0x22c/0x2c4
[ 2516.396050] do_el0_svc+0xb0/0x10c
[ 2516.396252] el0_svc+0x24/0x34
[ 2516.396436] el0t_64_sync_handler+0xa4/0x12c
[ 2516.396688] el0t_64_sync+0x198/0x19c
[ 2517.491197] NET: Registered PF_ATMPVC protocol family
[ 2517.491524] NET: Registered PF_ATMSVC protocol family
[ 2591.991877] sched: RT throttling activated
One way to solve this problem is to move the fd_install() call out of
the sighand->siglock critical section.
Before commit 6fd2fe494b17 ("copy_process(): don't use ksys_close()
on cleanups"), the pidfd installation was done without holding both
the task_list lock and the sighand->siglock. Obviously, holding these
two locks are not really needed to protect the fd_install() call.
So move the fd_install() call down to after the releases of both locks.
Link: https://lore.kernel.org/r/[email protected]
Fixes: 6fd2fe494b17 ("copy_process(): don't use ksys_close() on cleanups")
Reviewed-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Waiman Long <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/fork.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2350,10 +2350,6 @@ static __latent_entropy struct task_stru
goto bad_fork_cancel_cgroup;
}
- /* past the last point of failure */
- if (pidfile)
- fd_install(pidfd, pidfile);
-
init_task_pid_links(p);
if (likely(p->pid)) {
ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
@@ -2402,6 +2398,9 @@ static __latent_entropy struct task_stru
syscall_tracepoint_update(p);
write_unlock_irq(&tasklist_lock);
+ if (pidfile)
+ fd_install(pidfd, pidfile);
+
proc_fork_connector(p);
sched_post_fork(p, args);
cgroup_post_fork(p, args);
From: Laibin Qiu <[email protected]>
commit e92bc4cd34de2ce454bdea8cd198b8067ee4e123 upstream.
Now that we disable wbt by set WBT_STATE_OFF_DEFAULT in
wbt_disable_default() when switch elevator to bfq. And when
we remove scsi device, wbt will be enabled by wbt_enable_default.
If it become false positive between wbt_wait() and wbt_track()
when submit write request.
The following is the scenario that triggered the problem.
T1 T2 T3
elevator_switch_mq
bfq_init_queue
wbt_disable_default <= Set
rwb->enable_state (OFF)
Submit_bio
blk_mq_make_request
rq_qos_throttle
<= rwb->enable_state (OFF)
scsi_remove_device
sd_remove
del_gendisk
blk_unregister_queue
elv_unregister_queue
wbt_enable_default
<= Set rwb->enable_state (ON)
q_qos_track
<= rwb->enable_state (ON)
^^^^^^ this request will mark WBT_TRACKED without inflight add and will
lead to drop rqw->inflight to -1 in wbt_done() which will trigger IO hung.
Fix this by move wbt_enable_default() from elv_unregister to
bfq_exit_queue(). Only re-enable wbt when bfq exit.
Fixes: 76a8040817b4b ("blk-wbt: make sure throttle is enabled properly")
Remove oneline stale comment, and kill one oneshot local variable.
Signed-off-by: Ming Lei <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/linux-block/[email protected]/
Signed-off-by: Laibin Qiu <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
block/bfq-iosched.c | 2 ++
block/elevator.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -6878,6 +6878,8 @@ static void bfq_exit_queue(struct elevat
spin_unlock_irq(&bfqd->lock);
#endif
+ wbt_enable_default(bfqd->queue);
+
kfree(bfqd);
}
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -523,8 +523,6 @@ void elv_unregister_queue(struct request
kobject_del(&e->kobj);
e->registered = 0;
- /* Re-enable throttling in case elevator disabled it */
- wbt_enable_default(q);
}
}
From: Padmanabha Srinivasaiah <[email protected]>
[ Upstream commit 0cea730cac824edf78ffd3302938ed5fe2b9d50d ]
In service_callback path RCU dereferenced pointer struct vchiq_service
need to be accessed inside rcu read-critical section.
Also userdata/user_service part of vchiq_service is accessed around
different synchronization mechanism, getting an extra reference to a
pointer keeps sematics simpler and avoids prolonged graceperiod.
Accessing vchiq_service with rcu_read_[lock/unlock] fixes below issue.
[ 32.201659] =============================
[ 32.201664] WARNING: suspicious RCU usage
[ 32.201670] 5.15.11-rt24-v8+ #3 Not tainted
[ 32.201680] -----------------------------
[ 32.201685] drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h:529 suspicious rcu_dereference_check() usage!
[ 32.201695]
[ 32.201695] other info that might help us debug this:
[ 32.201695]
[ 32.201700]
[ 32.201700] rcu_scheduler_active = 2, debug_locks = 1
[ 32.201708] no locks held by vchiq-slot/0/98.
[ 32.201715]
[ 32.201715] stack backtrace:
[ 32.201723] CPU: 1 PID: 98 Comm: vchiq-slot/0 Not tainted 5.15.11-rt24-v8+ #3
[ 32.201733] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 32.201739] Call trace:
[ 32.201742] dump_backtrace+0x0/0x1b8
[ 32.201772] show_stack+0x20/0x30
[ 32.201784] dump_stack_lvl+0x8c/0xb8
[ 32.201799] dump_stack+0x18/0x34
[ 32.201808] lockdep_rcu_suspicious+0xe4/0xf8
[ 32.201817] service_callback+0x124/0x400
[ 32.201830] slot_handler_func+0xf60/0x1e20
[ 32.201839] kthread+0x19c/0x1a8
[ 32.201849] ret_from_fork+0x10/0x20
Tested-by: Stefan Wahren <[email protected]>
Signed-off-by: Padmanabha Srinivasaiah <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
.../interface/vchiq_arm/vchiq_arm.c | 20 +++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index c650a32bcedff..b9505bb51f45c 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -1058,15 +1058,27 @@ service_callback(enum vchiq_reason reason, struct vchiq_header *header,
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
+ rcu_read_lock();
service = handle_to_service(handle);
- if (WARN_ON(!service))
+ if (WARN_ON(!service)) {
+ rcu_read_unlock();
return VCHIQ_SUCCESS;
+ }
user_service = (struct user_service *)service->base.userdata;
instance = user_service->instance;
- if (!instance || instance->closing)
+ if (!instance || instance->closing) {
+ rcu_read_unlock();
return VCHIQ_SUCCESS;
+ }
+
+ /*
+ * As hopping around different synchronization mechanism,
+ * taking an extra reference results in simpler implementation.
+ */
+ vchiq_service_get(service);
+ rcu_read_unlock();
vchiq_log_trace(vchiq_arm_log_level,
"%s - service %lx(%d,%p), reason %d, header %lx, instance %lx, bulk_userdata %lx",
@@ -1097,6 +1109,7 @@ service_callback(enum vchiq_reason reason, struct vchiq_header *header,
bulk_userdata);
if (status != VCHIQ_SUCCESS) {
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
+ vchiq_service_put(service);
return status;
}
}
@@ -1105,10 +1118,12 @@ service_callback(enum vchiq_reason reason, struct vchiq_header *header,
if (wait_for_completion_interruptible(&user_service->remove_event)) {
vchiq_log_info(vchiq_arm_log_level, "%s interrupted", __func__);
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
+ vchiq_service_put(service);
return VCHIQ_RETRY;
} else if (instance->closing) {
vchiq_log_info(vchiq_arm_log_level, "%s closing", __func__);
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
+ vchiq_service_put(service);
return VCHIQ_ERROR;
}
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
@@ -1137,6 +1152,7 @@ service_callback(enum vchiq_reason reason, struct vchiq_header *header,
header = NULL;
}
DEBUG_TRACE(SERVICE_CALLBACK_LINE);
+ vchiq_service_put(service);
if (skip_completion)
return VCHIQ_SUCCESS;
--
2.34.1
From: Christophe Leroy <[email protected]>
commit 9bb162fa26ed76031ed0e7dbc77ccea0bf977758 upstream.
Allthough kernel text is always mapped with BATs, we still have
inittext mapped with pages, so TLB miss handling is required
when CONFIG_DEBUG_PAGEALLOC or CONFIG_KFENCE is set.
The final solution should be to set a BAT that also maps inittext
but that BAT then needs to be cleared at end of init, and it will
require more changes to be able to do it properly.
As DEBUG_PAGEALLOC or KFENCE are debugging, performance is not a big
deal so let's fix it simply for now to enable easy stable application.
Fixes: 035b19a15a98 ("powerpc/32s: Always map kernel text and rodata with BATs")
Cc: [email protected] # v5.11+
Reported-by: Maxime Bizon <[email protected]>
Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/aea33b4813a26bdb9378b5f273f00bd5d4abe240.1638857364.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/powerpc/kernel/head_book3s_32.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -421,14 +421,14 @@ InstructionTLBMiss:
*/
/* Get PTE (linux-style) and check access */
mfspr r3,SPRN_IMISS
-#ifdef CONFIG_MODULES
+#if defined(CONFIG_MODULES) || defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KFENCE)
lis r1, TASK_SIZE@h /* check if kernel address */
cmplw 0,r1,r3
#endif
mfspr r2, SPRN_SDR1
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC | _PAGE_USER
rlwinm r2, r2, 28, 0xfffff000
-#ifdef CONFIG_MODULES
+#if defined(CONFIG_MODULES) || defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KFENCE)
bgt- 112f
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
From: Eric Dumazet <[email protected]>
commit 9fcf986cc4bc6a3a39f23fbcbbc3a9e52d3c24fd upstream.
fib_alias_hw_flags_set() can be used by concurrent threads,
and is only RCU protected.
We need to annotate accesses to following fields of struct fib_alias:
offload, trap, offload_failed
Because of READ_ONCE()WRITE_ONCE() limitations, make these
field u8.
BUG: KCSAN: data-race in fib_alias_hw_flags_set / fib_alias_hw_flags_set
read to 0xffff888134224a6a of 1 bytes by task 2013 on cpu 1:
fib_alias_hw_flags_set+0x28a/0x470 net/ipv4/fib_trie.c:1050
nsim_fib4_rt_hw_flags_set drivers/net/netdevsim/fib.c:350 [inline]
nsim_fib4_rt_add drivers/net/netdevsim/fib.c:367 [inline]
nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:429 [inline]
nsim_fib4_event drivers/net/netdevsim/fib.c:461 [inline]
nsim_fib_event drivers/net/netdevsim/fib.c:881 [inline]
nsim_fib_event_work+0x1852/0x2cf0 drivers/net/netdevsim/fib.c:1477
process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0x7df/0xa70 kernel/workqueue.c:2456
kthread+0x1bf/0x1e0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
write to 0xffff888134224a6a of 1 bytes by task 4872 on cpu 0:
fib_alias_hw_flags_set+0x2d5/0x470 net/ipv4/fib_trie.c:1054
nsim_fib4_rt_hw_flags_set drivers/net/netdevsim/fib.c:350 [inline]
nsim_fib4_rt_add drivers/net/netdevsim/fib.c:367 [inline]
nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:429 [inline]
nsim_fib4_event drivers/net/netdevsim/fib.c:461 [inline]
nsim_fib_event drivers/net/netdevsim/fib.c:881 [inline]
nsim_fib_event_work+0x1852/0x2cf0 drivers/net/netdevsim/fib.c:1477
process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0x7df/0xa70 kernel/workqueue.c:2456
kthread+0x1bf/0x1e0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
value changed: 0x00 -> 0x02
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 4872 Comm: kworker/0:0 Not tainted 5.17.0-rc3-syzkaller-00188-g1d41d2e82623-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_fib_event_work
Fixes: 90b93f1b31f8 ("ipv4: Add "offload" and "trap" indications to routes")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: syzbot <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ipv4/fib_lookup.h | 7 +++----
net/ipv4/fib_semantics.c | 6 +++---
net/ipv4/fib_trie.c | 22 +++++++++++++---------
net/ipv4/route.c | 4 ++--
4 files changed, 21 insertions(+), 18 deletions(-)
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -16,10 +16,9 @@ struct fib_alias {
u8 fa_slen;
u32 tb_id;
s16 fa_default;
- u8 offload:1,
- trap:1,
- offload_failed:1,
- unused:5;
+ u8 offload;
+ u8 trap;
+ u8 offload_failed;
struct rcu_head rcu;
};
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -524,9 +524,9 @@ void rtmsg_fib(int event, __be32 key, st
fri.dst_len = dst_len;
fri.tos = fa->fa_tos;
fri.type = fa->fa_type;
- fri.offload = fa->offload;
- fri.trap = fa->trap;
- fri.offload_failed = fa->offload_failed;
+ fri.offload = READ_ONCE(fa->offload);
+ fri.trap = READ_ONCE(fa->trap);
+ fri.offload_failed = READ_ONCE(fa->offload_failed);
err = fib_dump_info(skb, info->portid, seq, event, &fri, nlm_flags);
if (err < 0) {
/* -EMSGSIZE implies BUG in fib_nlmsg_size() */
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1047,19 +1047,23 @@ void fib_alias_hw_flags_set(struct net *
if (!fa_match)
goto out;
- if (fa_match->offload == fri->offload && fa_match->trap == fri->trap &&
- fa_match->offload_failed == fri->offload_failed)
+ /* These are paired with the WRITE_ONCE() happening in this function.
+ * The reason is that we are only protected by RCU at this point.
+ */
+ if (READ_ONCE(fa_match->offload) == fri->offload &&
+ READ_ONCE(fa_match->trap) == fri->trap &&
+ READ_ONCE(fa_match->offload_failed) == fri->offload_failed)
goto out;
- fa_match->offload = fri->offload;
- fa_match->trap = fri->trap;
+ WRITE_ONCE(fa_match->offload, fri->offload);
+ WRITE_ONCE(fa_match->trap, fri->trap);
/* 2 means send notifications only if offload_failed was changed. */
if (net->ipv4.sysctl_fib_notify_on_flag_change == 2 &&
- fa_match->offload_failed == fri->offload_failed)
+ READ_ONCE(fa_match->offload_failed) == fri->offload_failed)
goto out;
- fa_match->offload_failed = fri->offload_failed;
+ WRITE_ONCE(fa_match->offload_failed, fri->offload_failed);
if (!net->ipv4.sysctl_fib_notify_on_flag_change)
goto out;
@@ -2297,9 +2301,9 @@ static int fn_trie_dump_leaf(struct key_
fri.dst_len = KEYLENGTH - fa->fa_slen;
fri.tos = fa->fa_tos;
fri.type = fa->fa_type;
- fri.offload = fa->offload;
- fri.trap = fa->trap;
- fri.offload_failed = fa->offload_failed;
+ fri.offload = READ_ONCE(fa->offload);
+ fri.trap = READ_ONCE(fa->trap);
+ fri.offload_failed = READ_ONCE(fa->offload_failed);
err = fib_dump_info(skb,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -3393,8 +3393,8 @@ static int inet_rtm_getroute(struct sk_b
fa->fa_tos == fri.tos &&
fa->fa_info == res.fi &&
fa->fa_type == fri.type) {
- fri.offload = fa->offload;
- fri.trap = fa->trap;
+ fri.offload = READ_ONCE(fa->offload);
+ fri.trap = READ_ONCE(fa->trap);
break;
}
}
From: Johannes Berg <[email protected]>
commit f0a6fd1527067da537e9c48390237488719948ed upstream.
My previous fix here to fix the deadlock left a race where
the exact same deadlock (see the original commit referenced
below) can still happen if cfg80211_destroy_ifaces() already
runs while nl80211_netlink_notify() is still marking some
interfaces as nl_owner_dead.
The race happens because we have two loops here - first we
dev_close() all the netdevs, and then we destroy them. If we
also have two netdevs (first one need only be a wdev though)
then we can find one during the first iteration, close it,
and go to the second iteration -- but then find two, and try
to destroy also the one we didn't close yet.
Fix this by only iterating once.
Reported-by: Toke Høiland-Jørgensen <[email protected]>
Fixes: ea6b2098dd02 ("cfg80211: fix locking in netlink owner interface destruction")
Tested-by: Toke Høiland-Jørgensen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/wireless/core.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -5,7 +5,7 @@
* Copyright 2006-2010 Johannes Berg <[email protected]>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -332,29 +332,20 @@ static void cfg80211_event_work(struct w
void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev)
{
struct wireless_dev *wdev, *tmp;
- bool found = false;
ASSERT_RTNL();
- list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
+ list_for_each_entry_safe(wdev, tmp, &rdev->wiphy.wdev_list, list) {
if (wdev->nl_owner_dead) {
if (wdev->netdev)
dev_close(wdev->netdev);
- found = true;
- }
- }
-
- if (!found)
- return;
- wiphy_lock(&rdev->wiphy);
- list_for_each_entry_safe(wdev, tmp, &rdev->wiphy.wdev_list, list) {
- if (wdev->nl_owner_dead) {
+ wiphy_lock(&rdev->wiphy);
cfg80211_leave(rdev, wdev);
rdev_del_virtual_intf(rdev, wdev);
+ wiphy_unlock(&rdev->wiphy);
}
}
- wiphy_unlock(&rdev->wiphy);
}
static void cfg80211_destroy_iface_wk(struct work_struct *work)
From: Matteo Martelli <[email protected]>
commit 19d20c7a29bf2e46ff1ab8e8c4fcd2da8a4f38e2 upstream.
Commit 83b7dcbc51c930fc2079ab6c6fc9d719768321f1 introduced a generic
implicit feedback parser, which fails to execute for M-Audio FastTrack
Ultra sound cards. The issue is with the ENDPOINT_SYNCTYPE check in
add_generic_implicit_fb() where the SYNCTYPE is ADAPTIVE instead of ASYNC.
The reason is that the sync type of the FastTrack output endpoints are
set to adaptive in the quirks table since commit
65f04443c96dbda11b8fff21d6390e082846aa3c.
Fixes: 83b7dcbc51c9 ("ALSA: usb-audio: Add generic implicit fb parsing")
Signed-off-by: Matteo Martelli <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/usb/implicit.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/usb/implicit.c
+++ b/sound/usb/implicit.c
@@ -47,13 +47,13 @@ struct snd_usb_implicit_fb_match {
static const struct snd_usb_implicit_fb_match playback_implicit_fb_quirks[] = {
/* Generic matching */
IMPLICIT_FB_GENERIC_DEV(0x0499, 0x1509), /* Steinberg UR22 */
- IMPLICIT_FB_GENERIC_DEV(0x0763, 0x2080), /* M-Audio FastTrack Ultra */
- IMPLICIT_FB_GENERIC_DEV(0x0763, 0x2081), /* M-Audio FastTrack Ultra */
IMPLICIT_FB_GENERIC_DEV(0x0763, 0x2030), /* M-Audio Fast Track C400 */
IMPLICIT_FB_GENERIC_DEV(0x0763, 0x2031), /* M-Audio Fast Track C600 */
/* Fixed EP */
/* FIXME: check the availability of generic matching */
+ IMPLICIT_FB_FIXED_DEV(0x0763, 0x2080, 0x81, 2), /* M-Audio FastTrack Ultra */
+ IMPLICIT_FB_FIXED_DEV(0x0763, 0x2081, 0x81, 2), /* M-Audio FastTrack Ultra */
IMPLICIT_FB_FIXED_DEV(0x2466, 0x8010, 0x81, 2), /* Fractal Audio Axe-Fx III */
IMPLICIT_FB_FIXED_DEV(0x31e9, 0x0001, 0x81, 2), /* Solid State Logic SSL2 */
IMPLICIT_FB_FIXED_DEV(0x31e9, 0x0002, 0x81, 2), /* Solid State Logic SSL2+ */
From: Ansuel Smith <[email protected]>
commit 65d003cca335cabc0160d3cd7daa689eaa9dd3cd upstream.
In the event of a skipped partition (case when the entry name is empty)
the kernel panics in the cleanup function as the name entry is NULL.
Rework the parser logic by first checking the real partition number and
then allocate the space and set the data for the valid partitions.
The logic was also fundamentally wrong as with a skipped partition, the
parts number returned was incorrect by not decreasing it for the skipped
partitions.
Fixes: 803eb124e1a6 ("mtd: parsers: Add Qcom SMEM parser")
Signed-off-by: Ansuel Smith <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/mtd/parsers/qcomsmempart.c | 31 +++++++++++++++++++------------
1 file changed, 19 insertions(+), 12 deletions(-)
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -58,11 +58,11 @@ static int parse_qcomsmem_part(struct mt
const struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
{
+ size_t len = SMEM_FLASH_PTABLE_HDR_LEN;
+ int ret, i, j, tmpparts, numparts = 0;
struct smem_flash_pentry *pentry;
struct smem_flash_ptable *ptable;
- size_t len = SMEM_FLASH_PTABLE_HDR_LEN;
struct mtd_partition *parts;
- int ret, i, numparts;
char *name, *c;
if (IS_ENABLED(CONFIG_MTD_SPI_NOR_USE_4K_SECTORS)
@@ -87,8 +87,8 @@ static int parse_qcomsmem_part(struct mt
}
/* Ensure that # of partitions is less than the max we have allocated */
- numparts = le32_to_cpu(ptable->numparts);
- if (numparts > SMEM_FLASH_PTABLE_MAX_PARTS_V4) {
+ tmpparts = le32_to_cpu(ptable->numparts);
+ if (tmpparts > SMEM_FLASH_PTABLE_MAX_PARTS_V4) {
pr_err("Partition numbers exceed the max limit\n");
return -EINVAL;
}
@@ -116,11 +116,17 @@ static int parse_qcomsmem_part(struct mt
return PTR_ERR(ptable);
}
+ for (i = 0; i < tmpparts; i++) {
+ pentry = &ptable->pentry[i];
+ if (pentry->name[0] != '\0')
+ numparts++;
+ }
+
parts = kcalloc(numparts, sizeof(*parts), GFP_KERNEL);
if (!parts)
return -ENOMEM;
- for (i = 0; i < numparts; i++) {
+ for (i = 0, j = 0; i < tmpparts; i++) {
pentry = &ptable->pentry[i];
if (pentry->name[0] == '\0')
continue;
@@ -135,24 +141,25 @@ static int parse_qcomsmem_part(struct mt
for (c = name; *c != '\0'; c++)
*c = tolower(*c);
- parts[i].name = name;
- parts[i].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
- parts[i].mask_flags = pentry->attr;
- parts[i].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+ parts[j].name = name;
+ parts[j].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
+ parts[j].mask_flags = pentry->attr;
+ parts[j].size = le32_to_cpu(pentry->length) * mtd->erasesize;
pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
i, pentry->name, le32_to_cpu(pentry->offset),
le32_to_cpu(pentry->length), pentry->attr);
+ j++;
}
pr_debug("SMEM partition table found: ver: %d len: %d\n",
- le32_to_cpu(ptable->version), numparts);
+ le32_to_cpu(ptable->version), tmpparts);
*pparts = parts;
return numparts;
out_free_parts:
- while (--i >= 0)
- kfree(parts[i].name);
+ while (--j >= 0)
+ kfree(parts[j].name);
kfree(parts);
*pparts = NULL;
From: Charles Keepax <[email protected]>
commit a887f9c7a4d37a8e874ba8415a42a92a1b5139fc upstream.
When parsing the compressed stream the whole buffer descriptor is
now read in a single cs_dsp_coeff_read_ctrl; on older firmwares
this descriptor is just 4 bytes but on more modern firmwares it is
24 bytes. The current code reads the full 24 bytes regardless, this
was working but reading junk for the last 20 bytes. However commit
f444da38ac92 ("firmware: cs_dsp: Add offset to cs_dsp read/write")
added a size check into cs_dsp_coeff_read_ctrl, causing the older
firmwares to now return an error.
Update the code to only read the amount of data appropriate for
the firmware loaded.
Fixes: 04ae08596737 ("ASoC: wm_adsp: Switch to using wm_coeff_read_ctrl for compressed buffers")
Signed-off-by: Charles Keepax <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/codecs/wm_adsp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1448,7 +1448,8 @@ static int wm_adsp_buffer_parse_coeff(st
int ret, i;
for (i = 0; i < 5; ++i) {
- ret = cs_dsp_coeff_read_ctrl(cs_ctl, &coeff_v1, sizeof(coeff_v1));
+ ret = cs_dsp_coeff_read_ctrl(cs_ctl, &coeff_v1,
+ min(cs_ctl->len, sizeof(coeff_v1)));
if (ret < 0)
return ret;
On Mon, Feb 21, 2022 at 09:46:59AM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
Build results:
total: 155 pass: 154 fail: 1
Failed builds:
mips:malta_defconfig
Qemu test results:
total: 488 pass: 428 fail: 60
Failed tests:
<mips boot test, due to build error>
Building mips:malta_defconfig ... failed
--------------
Error log:
net/netfilter/xt_socket.c: In function 'socket_mt_destroy':
net/netfilter/xt_socket.c:224:17: error: implicit declaration of function 'nf_defrag_ipv6_disable'
Guenter
From: Yang Xu <[email protected]>
[ Upstream commit fc4eb486a59d70bd35cf1209f0e68c2d8b979193 ]
Since commit 43209ea2d17a ("zram: remove max_comp_streams internals"), zram
has switched to per-cpu streams. Even kernel still keep this interface for
some reasons, but writing to max_comp_stream doesn't take any effect. So
skip it on newer kernel ie 4.7.
The code that comparing kernel version is from xfstests testsuite ext4/053.
Signed-off-by: Yang Xu <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/zram/zram_lib.sh | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index 6f872f266fd11..f47fc0f27e99e 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -11,6 +11,9 @@ dev_mounted=-1
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
+kernel_version=`uname -r | cut -d'.' -f1,2`
+kernel_major=${kernel_version%.*}
+kernel_minor=${kernel_version#*.}
trap INT
@@ -25,6 +28,20 @@ check_prereqs()
fi
}
+kernel_gte()
+{
+ major=${1%.*}
+ minor=${1#*.}
+
+ if [ $kernel_major -gt $major ]; then
+ return 0
+ elif [[ $kernel_major -eq $major && $kernel_minor -ge $minor ]]; then
+ return 0
+ fi
+
+ return 1
+}
+
zram_cleanup()
{
echo "zram cleanup"
@@ -86,6 +103,13 @@ zram_max_streams()
{
echo "set max_comp_streams to zram device(s)"
+ kernel_gte 4.7
+ if [ $? -eq 0 ]; then
+ echo "The device attribute max_comp_streams was"\
+ "deprecated in 4.7"
+ return 0
+ fi
+
local i=0
for max_s in $zram_max_streams; do
local sys_path="/sys/block/zram${i}/max_comp_streams"
--
2.34.1
From: Xin Long <[email protected]>
commit 35a79e64de29e8d57a5989aac57611c0cd29e13e upstream.
When 'ping' changes to use PING socket instead of RAW socket by:
# sysctl -w net.ipv4.ping_group_range="0 100"
There is another regression caused when matching sk_bound_dev_if
and dif, RAW socket is using inet_iif() while PING socket lookup
is using skb->dev->ifindex, the cmd below fails due to this:
# ip link add dummy0 type dummy
# ip link set dummy0 up
# ip addr add 192.168.111.1/24 dev dummy0
# ping -I dummy0 192.168.111.1 -c1
The issue was also reported on:
https://github.com/iputils/iputils/issues/104
But fixed in iputils in a wrong way by not binding to device when
destination IP is on device, and it will cause some of kselftests
to fail, as Jianlin noticed.
This patch is to use inet(6)_iif and inet(6)_sdif to get dif and
sdif for PING socket, and keep consistent with RAW socket.
Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Reported-by: Jianlin Shi <[email protected]>
Signed-off-by: Xin Long <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ipv4/ping.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -172,16 +172,23 @@ static struct sock *ping_lookup(struct n
struct sock *sk = NULL;
struct inet_sock *isk;
struct hlist_nulls_node *hnode;
- int dif = skb->dev->ifindex;
+ int dif, sdif;
if (skb->protocol == htons(ETH_P_IP)) {
+ dif = inet_iif(skb);
+ sdif = inet_sdif(skb);
pr_debug("try to find: num = %d, daddr = %pI4, dif = %d\n",
(int)ident, &ip_hdr(skb)->daddr, dif);
#if IS_ENABLED(CONFIG_IPV6)
} else if (skb->protocol == htons(ETH_P_IPV6)) {
+ dif = inet6_iif(skb);
+ sdif = inet6_sdif(skb);
pr_debug("try to find: num = %d, daddr = %pI6c, dif = %d\n",
(int)ident, &ipv6_hdr(skb)->daddr, dif);
#endif
+ } else {
+ pr_err("ping: protocol(%x) is not supported\n", ntohs(skb->protocol));
+ return NULL;
}
read_lock_bh(&ping_table.lock);
@@ -221,7 +228,7 @@ static struct sock *ping_lookup(struct n
}
if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif &&
- sk->sk_bound_dev_if != inet_sdif(skb))
+ sk->sk_bound_dev_if != sdif)
continue;
sock_hold(sk);
From: Jiasheng Jiang <[email protected]>
commit da2ad87fba0891576aadda9161b8505fde81a84d upstream.
As the possible failure of the dma_set_max_seg_size(), it should be
better to check the return value of the dma_set_max_seg_size().
Fixes: 97d49c59e219 ("dmaengine: rcar-dmac: set scatter/gather max segment size")
Reported-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Jiasheng Jiang <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/dma/sh/rcar-dmac.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1868,7 +1868,10 @@ static int rcar_dmac_probe(struct platfo
dmac->dev = &pdev->dev;
platform_set_drvdata(pdev, dmac);
- dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
+ ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
+ if (ret)
+ return ret;
+
ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
if (ret)
return ret;
From: Martin Povišer <[email protected]>
commit 307f31452078792aab94a729fce33200c6e42dc4 upstream.
Per TAS2770 datasheet there must be a 1 ms delay from reset to first
command. So insert delays into the driver where appropriate.
Fixes: 1a476abc723e ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Martin Povišer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/codecs/tas2770.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/sound/soc/codecs/tas2770.c
+++ b/sound/soc/codecs/tas2770.c
@@ -38,10 +38,12 @@ static void tas2770_reset(struct tas2770
gpiod_set_value_cansleep(tas2770->reset_gpio, 0);
msleep(20);
gpiod_set_value_cansleep(tas2770->reset_gpio, 1);
+ usleep_range(1000, 2000);
}
snd_soc_component_write(tas2770->component, TAS2770_SW_RST,
TAS2770_RST);
+ usleep_range(1000, 2000);
}
static int tas2770_set_bias_level(struct snd_soc_component *component,
@@ -110,6 +112,7 @@ static int tas2770_codec_resume(struct s
if (tas2770->sdz_gpio) {
gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+ usleep_range(1000, 2000);
} else {
ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
TAS2770_PWR_CTRL_MASK,
@@ -510,8 +513,10 @@ static int tas2770_codec_probe(struct sn
tas2770->component = component;
- if (tas2770->sdz_gpio)
+ if (tas2770->sdz_gpio) {
gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+ usleep_range(1000, 2000);
+ }
tas2770_reset(tas2770);
From: Hao Luo <[email protected]>
commit d639b9d13a39cf15639cbe6e8b2c43eb60148a73 upstream.
There are some common properties shared between bpf reg, ret and arg
values. For instance, a value may be a NULL pointer, or a pointer to
a read-only memory. Previously, to express these properties, enumeration
was used. For example, in order to test whether a reg value can be NULL,
reg_type_may_be_null() simply enumerates all types that are possibly
NULL. The problem of this approach is that it's not scalable and causes
a lot of duplication. These properties can be combined, for example, a
type could be either MAYBE_NULL or RDONLY, or both.
This patch series rewrites the layout of reg_type, arg_type and
ret_type, so that common properties can be extracted and represented as
composable flag. For example, one can write
ARG_PTR_TO_MEM | PTR_MAYBE_NULL
which is equivalent to the previous
ARG_PTR_TO_MEM_OR_NULL
The type ARG_PTR_TO_MEM are called "base type" in this patch. Base
types can be extended with flags. A flag occupies the higher bits while
base types sits in the lower bits.
This patch in particular sets up a set of macro for this purpose. The
following patches will rewrite arg_types, ret_types and reg_types
respectively.
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
include/linux/bpf.h | 42 ++++++++++++++++++++++++++++++++++++++++++
include/linux/bpf_verifier.h | 13 +++++++++++++
2 files changed, 55 insertions(+)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -297,6 +297,29 @@ bool bpf_map_meta_equal(const struct bpf
extern const struct bpf_map_ops bpf_map_offload_ops;
+/* bpf_type_flag contains a set of flags that are applicable to the values of
+ * arg_type, ret_type and reg_type. For example, a pointer value may be null,
+ * or a memory is read-only. We classify types into two categories: base types
+ * and extended types. Extended types are base types combined with a type flag.
+ *
+ * Currently there are no more than 32 base types in arg_type, ret_type and
+ * reg_types.
+ */
+#define BPF_BASE_TYPE_BITS 8
+
+enum bpf_type_flag {
+ /* PTR may be NULL. */
+ PTR_MAYBE_NULL = BIT(0 + BPF_BASE_TYPE_BITS),
+
+ __BPF_TYPE_LAST_FLAG = PTR_MAYBE_NULL,
+};
+
+/* Max number of base types. */
+#define BPF_BASE_TYPE_LIMIT (1UL << BPF_BASE_TYPE_BITS)
+
+/* Max number of all types. */
+#define BPF_TYPE_LIMIT (__BPF_TYPE_LAST_FLAG | (__BPF_TYPE_LAST_FLAG - 1))
+
/* function argument constraints */
enum bpf_arg_type {
ARG_DONTCARE = 0, /* unused argument in helper function */
@@ -343,7 +366,13 @@ enum bpf_arg_type {
ARG_PTR_TO_CONST_STR, /* pointer to a null terminated read-only string */
ARG_PTR_TO_TIMER, /* pointer to bpf_timer */
__BPF_ARG_TYPE_MAX,
+
+ /* This must be the last entry. Its purpose is to ensure the enum is
+ * wide enough to hold the higher bits reserved for bpf_type_flag.
+ */
+ __BPF_ARG_TYPE_LIMIT = BPF_TYPE_LIMIT,
};
+static_assert(__BPF_ARG_TYPE_MAX <= BPF_BASE_TYPE_LIMIT);
/* type of values returned from helper functions */
enum bpf_return_type {
@@ -359,7 +388,14 @@ enum bpf_return_type {
RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL, /* returns a pointer to a valid memory or a btf_id or NULL */
RET_PTR_TO_MEM_OR_BTF_ID, /* returns a pointer to a valid memory or a btf_id */
RET_PTR_TO_BTF_ID, /* returns a pointer to a btf_id */
+ __BPF_RET_TYPE_MAX,
+
+ /* This must be the last entry. Its purpose is to ensure the enum is
+ * wide enough to hold the higher bits reserved for bpf_type_flag.
+ */
+ __BPF_RET_TYPE_LIMIT = BPF_TYPE_LIMIT,
};
+static_assert(__BPF_RET_TYPE_MAX <= BPF_BASE_TYPE_LIMIT);
/* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs
* to in-kernel helper functions and for adjusting imm32 field in BPF_CALL
@@ -461,7 +497,13 @@ enum bpf_reg_type {
PTR_TO_FUNC, /* reg points to a bpf program function */
PTR_TO_MAP_KEY, /* reg points to a map element key */
__BPF_REG_TYPE_MAX,
+
+ /* This must be the last entry. Its purpose is to ensure the enum is
+ * wide enough to hold the higher bits reserved for bpf_type_flag.
+ */
+ __BPF_REG_TYPE_LIMIT = BPF_TYPE_LIMIT,
};
+static_assert(__BPF_REG_TYPE_MAX <= BPF_BASE_TYPE_LIMIT);
/* The information passed from prog-specific *_is_valid_access
* back to the verifier.
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -536,5 +536,18 @@ int bpf_check_attach_target(struct bpf_v
struct bpf_attach_target_info *tgt_info);
void bpf_free_kfunc_btf_tab(struct bpf_kfunc_btf_tab *tab);
+#define BPF_BASE_TYPE_MASK GENMASK(BPF_BASE_TYPE_BITS - 1, 0)
+
+/* extract base type from bpf_{arg, return, reg}_type. */
+static inline u32 base_type(u32 type)
+{
+ return type & BPF_BASE_TYPE_MASK;
+}
+
+/* extract flags from an extended type. See bpf_type_flag in bpf.h. */
+static inline u32 type_flag(u32 type)
+{
+ return type & ~BPF_BASE_TYPE_MASK;
+}
#endif /* _LINUX_BPF_VERIFIER_H */
From: Jiasheng Jiang <[email protected]>
commit 2d21543efe332cd8c8f212fb7d365bc8b0690bfa upstream.
Because of the possible failure of the dma_supported(), the
dma_set_mask_and_coherent() may return error num.
Therefore, it should be better to check it and return the error if
fails.
Fixes: dc312349e875 ("dmaengine: rcar-dmac: Widen DMA mask to 40 bits")
Signed-off-by: Jiasheng Jiang <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/dma/sh/rcar-dmac.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1869,7 +1869,9 @@ static int rcar_dmac_probe(struct platfo
dmac->dev = &pdev->dev;
platform_set_drvdata(pdev, dmac);
dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
- dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+ ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+ if (ret)
+ return ret;
ret = rcar_dmac_parse_of(&pdev->dev, dmac);
if (ret < 0)
From: Christophe JAILLET <[email protected]>
commit 3c62fd3406e0b2277c76a6984d3979c7f3f1d129 upstream.
In order to free resources correctly in the error handling path of
pt_core_init(), 2 goto's have to be switched. Otherwise, some resources
will leak and we will try to release things that have not been allocated
yet.
Also move a dev_err() to a place where it is more meaningful.
Fixes: fa5d823b16a9 ("dmaengine: ptdma: Initial driver for the AMD PTDMA")
Signed-off-by: Christophe JAILLET <[email protected]>
Acked-by: Sanjay R Mehta <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/41a963a35173f89c874f5c44df5530dc09fea8da.1644044244.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/dma/ptdma/ptdma-dev.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
--- a/drivers/dma/ptdma/ptdma-dev.c
+++ b/drivers/dma/ptdma/ptdma-dev.c
@@ -207,7 +207,7 @@ int pt_core_init(struct pt_device *pt)
if (!cmd_q->qbase) {
dev_err(dev, "unable to allocate command queue\n");
ret = -ENOMEM;
- goto e_dma_alloc;
+ goto e_destroy_pool;
}
cmd_q->qidx = 0;
@@ -229,8 +229,10 @@ int pt_core_init(struct pt_device *pt)
/* Request an irq */
ret = request_irq(pt->pt_irq, pt_core_irq_handler, 0, dev_name(pt->dev), pt);
- if (ret)
- goto e_pool;
+ if (ret) {
+ dev_err(dev, "unable to allocate an IRQ\n");
+ goto e_free_dma;
+ }
/* Update the device registers with queue information. */
cmd_q->qcontrol &= ~CMD_Q_SIZE;
@@ -250,21 +252,20 @@ int pt_core_init(struct pt_device *pt)
/* Register the DMA engine support */
ret = pt_dmaengine_register(pt);
if (ret)
- goto e_dmaengine;
+ goto e_free_irq;
/* Set up debugfs entries */
ptdma_debugfs_setup(pt);
return 0;
-e_dmaengine:
+e_free_irq:
free_irq(pt->pt_irq, pt);
-e_dma_alloc:
+e_free_dma:
dma_free_coherent(dev, cmd_q->qsize, cmd_q->qbase, cmd_q->qbase_dma);
-e_pool:
- dev_err(dev, "unable to allocate an IRQ\n");
+e_destroy_pool:
dma_pool_destroy(pt->cmd_q.dma_pool);
return ret;
From: Takashi Iwai <[email protected]>
commit 9a5adeb28b77416446658e75bdef3bbe5fb92a83 upstream.
The default mixer resume code treats the errors at restoring the
modified mixer items as a fatal error, and it returns back to the
caller. This ends up in the resume failure, and the device will be
come unavailable, although basically those errors are intermittent and
can be safely ignored.
The problem itself has been present from the beginning, but it didn't
hit usually because the code tries to resume only the modified items.
But now with the recent commit to forcibly initialize each item at the
probe time, the problem surfaced more often, hence it appears as a
regression.
This patch fixes the regression simply by ignoring the errors at
resume.
Fixes: b96681bd5827 ("ALSA: usb-audio: Initialize every feature unit once at probe time")
Cc: <[email protected]>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215561
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/usb/mixer.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3678,17 +3678,14 @@ static int restore_mixer_value(struct us
err = snd_usb_set_cur_mix_value(cval, c + 1, idx,
cval->cache_val[idx]);
if (err < 0)
- return err;
+ break;
}
idx++;
}
} else {
/* master */
- if (cval->cached) {
- err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
- if (err < 0)
- return err;
- }
+ if (cval->cached)
+ snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
}
return 0;
From: John David Anglin <[email protected]>
commit 9129886b88185962538180625ca8051362b01327 upstream.
With huge kernel pages, we randomly eat a SPARC in map_pages(). This
is fixed by dropping __init from the declaration.
However, map_pages references the __init routine memblock_alloc_try_nid
via memblock_alloc. Thus, it needs to be marked with __ref.
memblock_alloc is only called before the kernel text is set to readonly.
The __ref on free_initmem is no longer needed.
Comment regarding map_pages being in the init section is removed.
Signed-off-by: John David Anglin <[email protected]>
Cc: [email protected] # v5.4+
Signed-off-by: Helge Deller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/parisc/mm/init.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -337,9 +337,9 @@ static void __init setup_bootmem(void)
static bool kernel_set_to_readonly;
-static void __init map_pages(unsigned long start_vaddr,
- unsigned long start_paddr, unsigned long size,
- pgprot_t pgprot, int force)
+static void __ref map_pages(unsigned long start_vaddr,
+ unsigned long start_paddr, unsigned long size,
+ pgprot_t pgprot, int force)
{
pmd_t *pmd;
pte_t *pg_table;
@@ -449,7 +449,7 @@ void __init set_kernel_text_rw(int enabl
flush_tlb_all();
}
-void __ref free_initmem(void)
+void free_initmem(void)
{
unsigned long init_begin = (unsigned long)__init_begin;
unsigned long init_end = (unsigned long)__init_end;
@@ -463,7 +463,6 @@ void __ref free_initmem(void)
/* The init text pages are marked R-X. We have to
* flush the icache and mark them RW-
*
- * This is tricky, because map_pages is in the init section.
* Do a dummy remap of the data section first (the data
* section is already PAGE_KERNEL) to pull in the TLB entries
* for map_kernel */
From: Julian Braha <[email protected]>
[ Upstream commit 579b2c8f72d974f27d85bbd53846f34675ee3b01 ]
When SND_SOC_MT8195_MT6359_RT1011_RT5682 is selected,
and GPIOLIB is not selected,
Kbuild gives the following warning:
WARNING: unmet direct dependencies detected for SND_SOC_DMIC
Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && GPIOLIB [=n]
Selected by [y]:
- SND_SOC_MT8195_MT6359_RT1011_RT5682 [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && I2C [=y] && SND_SOC_MT8195 [=y] && MTK_PMIC_WRAP [=y]
This is because SND_SOC_MT8195_MT6359_RT1011_RT5682
selects SND_SOC_DMIC without selecting or depending on
GPIOLIB, depsite SND_SOC_DMIC depending on GPIOLIB.
This unmet dependency bug was detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.
Signed-off-by: Julian Braha <[email protected]>
Reviewed-by: Tzung-Bi Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/mediatek/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 3b1ddea26a9ef..76f191ec7bf84 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -215,7 +215,7 @@ config SND_SOC_MT8195_MT6359_RT1019_RT5682
config SND_SOC_MT8195_MT6359_RT1011_RT5682
tristate "ASoC Audio driver for MT8195 with MT6359 RT1011 RT5682 codec"
- depends on I2C
+ depends on I2C && GPIOLIB
depends on SND_SOC_MT8195 && MTK_PMIC_WRAP
select SND_SOC_MT6359
select SND_SOC_RT1011
--
2.34.1
From: Dmytro Laktyushkin <[email protected]>
[ Upstream commit 60fdf98a774eee244a4e00c34a9e7729b61d0f44 ]
Fix clamping to match register field size
Reviewed-by: Charlene Liu <[email protected]>
Acked-by: Jasdeep Dhillon <[email protected]>
Signed-off-by: Dmytro Laktyushkin <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
.../drm/amd/display/dc/dcn31/dcn31_hubbub.c | 61 ++++++++++---------
1 file changed, 32 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c
index 90c73a1cb9861..5e3bcaf12cac4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c
@@ -138,8 +138,11 @@ static uint32_t convert_and_clamp(
ret_val = wm_ns * refclk_mhz;
ret_val /= 1000;
- if (ret_val > clamp_value)
+ if (ret_val > clamp_value) {
+ /* clamping WMs is abnormal, unexpected and may lead to underflow*/
+ ASSERT(0);
ret_val = clamp_value;
+ }
return ret_val;
}
@@ -159,7 +162,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->a.urgent_ns > hubbub2->watermarks.a.urgent_ns) {
hubbub2->watermarks.a.urgent_ns = watermarks->a.urgent_ns;
prog_wm_value = convert_and_clamp(watermarks->a.urgent_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, 0,
DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, prog_wm_value);
@@ -193,7 +196,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->a.urgent_latency_ns > hubbub2->watermarks.a.urgent_latency_ns) {
hubbub2->watermarks.a.urgent_latency_ns = watermarks->a.urgent_latency_ns;
prog_wm_value = convert_and_clamp(watermarks->a.urgent_latency_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, 0,
DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, prog_wm_value);
} else if (watermarks->a.urgent_latency_ns < hubbub2->watermarks.a.urgent_latency_ns)
@@ -203,7 +206,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->b.urgent_ns > hubbub2->watermarks.b.urgent_ns) {
hubbub2->watermarks.b.urgent_ns = watermarks->b.urgent_ns;
prog_wm_value = convert_and_clamp(watermarks->b.urgent_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, 0,
DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, prog_wm_value);
@@ -237,7 +240,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->b.urgent_latency_ns > hubbub2->watermarks.b.urgent_latency_ns) {
hubbub2->watermarks.b.urgent_latency_ns = watermarks->b.urgent_latency_ns;
prog_wm_value = convert_and_clamp(watermarks->b.urgent_latency_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, 0,
DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, prog_wm_value);
} else if (watermarks->b.urgent_latency_ns < hubbub2->watermarks.b.urgent_latency_ns)
@@ -247,7 +250,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->c.urgent_ns > hubbub2->watermarks.c.urgent_ns) {
hubbub2->watermarks.c.urgent_ns = watermarks->c.urgent_ns;
prog_wm_value = convert_and_clamp(watermarks->c.urgent_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, 0,
DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, prog_wm_value);
@@ -281,7 +284,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->c.urgent_latency_ns > hubbub2->watermarks.c.urgent_latency_ns) {
hubbub2->watermarks.c.urgent_latency_ns = watermarks->c.urgent_latency_ns;
prog_wm_value = convert_and_clamp(watermarks->c.urgent_latency_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, 0,
DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, prog_wm_value);
} else if (watermarks->c.urgent_latency_ns < hubbub2->watermarks.c.urgent_latency_ns)
@@ -291,7 +294,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->d.urgent_ns > hubbub2->watermarks.d.urgent_ns) {
hubbub2->watermarks.d.urgent_ns = watermarks->d.urgent_ns;
prog_wm_value = convert_and_clamp(watermarks->d.urgent_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, 0,
DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, prog_wm_value);
@@ -325,7 +328,7 @@ static bool hubbub31_program_urgent_watermarks(
if (safe_to_lower || watermarks->d.urgent_latency_ns > hubbub2->watermarks.d.urgent_latency_ns) {
hubbub2->watermarks.d.urgent_latency_ns = watermarks->d.urgent_latency_ns;
prog_wm_value = convert_and_clamp(watermarks->d.urgent_latency_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0x3fff);
REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, 0,
DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, prog_wm_value);
} else if (watermarks->d.urgent_latency_ns < hubbub2->watermarks.d.urgent_latency_ns)
@@ -351,7 +354,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_A calculated =%d\n"
@@ -367,7 +370,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->a.cstate_pstate.cstate_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->a.cstate_pstate.cstate_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_A calculated =%d\n"
@@ -383,7 +386,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->a.cstate_pstate.cstate_enter_plus_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->a.cstate_pstate.cstate_enter_plus_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_A, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_A, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_WATERMARK_Z8_A calculated =%d\n"
@@ -399,7 +402,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->a.cstate_pstate.cstate_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->a.cstate_pstate.cstate_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_A, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_A, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_Z8_A calculated =%d\n"
@@ -416,7 +419,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_B calculated =%d\n"
@@ -432,7 +435,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->b.cstate_pstate.cstate_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->b.cstate_pstate.cstate_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_B calculated =%d\n"
@@ -448,7 +451,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->b.cstate_pstate.cstate_enter_plus_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->b.cstate_pstate.cstate_enter_plus_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_B, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_B, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_WATERMARK_Z8_B calculated =%d\n"
@@ -464,7 +467,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->b.cstate_pstate.cstate_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->b.cstate_pstate.cstate_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_B, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_B, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_Z8_B calculated =%d\n"
@@ -481,7 +484,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_C calculated =%d\n"
@@ -497,7 +500,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->c.cstate_pstate.cstate_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->c.cstate_pstate.cstate_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_C calculated =%d\n"
@@ -513,7 +516,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->c.cstate_pstate.cstate_enter_plus_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->c.cstate_pstate.cstate_enter_plus_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_C, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_C, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_WATERMARK_Z8_C calculated =%d\n"
@@ -529,7 +532,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->c.cstate_pstate.cstate_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->c.cstate_pstate.cstate_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_C, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_C, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_Z8_C calculated =%d\n"
@@ -546,7 +549,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_D calculated =%d\n"
@@ -562,7 +565,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->d.cstate_pstate.cstate_exit_ns;
prog_wm_value = convert_and_clamp(
watermarks->d.cstate_pstate.cstate_exit_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_D calculated =%d\n"
@@ -578,7 +581,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->d.cstate_pstate.cstate_enter_plus_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->d.cstate_pstate.cstate_enter_plus_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_D, 0,
DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_D, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_ENTER_WATERMARK_Z8_D calculated =%d\n"
@@ -594,7 +597,7 @@ static bool hubbub31_program_stutter_watermarks(
watermarks->d.cstate_pstate.cstate_exit_z8_ns;
prog_wm_value = convert_and_clamp(
watermarks->d.cstate_pstate.cstate_exit_z8_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_D, 0,
DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_D, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_Z8_D calculated =%d\n"
@@ -625,7 +628,7 @@ static bool hubbub31_program_pstate_watermarks(
watermarks->a.cstate_pstate.pstate_change_ns;
prog_wm_value = convert_and_clamp(
watermarks->a.cstate_pstate.pstate_change_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, 0,
DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_A calculated =%d\n"
@@ -642,7 +645,7 @@ static bool hubbub31_program_pstate_watermarks(
watermarks->b.cstate_pstate.pstate_change_ns;
prog_wm_value = convert_and_clamp(
watermarks->b.cstate_pstate.pstate_change_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, 0,
DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_B calculated =%d\n"
@@ -659,7 +662,7 @@ static bool hubbub31_program_pstate_watermarks(
watermarks->c.cstate_pstate.pstate_change_ns;
prog_wm_value = convert_and_clamp(
watermarks->c.cstate_pstate.pstate_change_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, 0,
DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_C calculated =%d\n"
@@ -676,7 +679,7 @@ static bool hubbub31_program_pstate_watermarks(
watermarks->d.cstate_pstate.pstate_change_ns;
prog_wm_value = convert_and_clamp(
watermarks->d.cstate_pstate.pstate_change_ns,
- refclk_mhz, 0x1fffff);
+ refclk_mhz, 0xffff);
REG_SET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, 0,
DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, prog_wm_value);
DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_D calculated =%d\n"
--
2.34.1
From: Jon Maloy <[email protected]>
commit c08e58438d4a709fb451b6d7d33432cc9907a2a8 upstream.
The previous bug fix had an unfortunate side effect that broke
distribution of binding table entries between nodes. The updated
tipc_sock_addr struct is also used further down in the same
function, and there the old value is still the correct one.
Fixes: 032062f363b4 ("tipc: fix wrong publisher node address in link publications")
Signed-off-by: Jon Maloy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/tipc/node.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -403,7 +403,7 @@ static void tipc_node_write_unlock(struc
u32 flags = n->action_flags;
struct list_head *publ_list;
struct tipc_uaddr ua;
- u32 bearer_id;
+ u32 bearer_id, node;
if (likely(!flags)) {
write_unlock_bh(&n->lock);
@@ -414,6 +414,7 @@ static void tipc_node_write_unlock(struc
TIPC_LINK_STATE, n->addr, n->addr);
sk.ref = n->link_id;
sk.node = tipc_own_addr(net);
+ node = n->addr;
bearer_id = n->link_id & 0xffff;
publ_list = &n->publ_list;
@@ -423,17 +424,17 @@ static void tipc_node_write_unlock(struc
write_unlock_bh(&n->lock);
if (flags & TIPC_NOTIFY_NODE_DOWN)
- tipc_publ_notify(net, publ_list, sk.node, n->capabilities);
+ tipc_publ_notify(net, publ_list, node, n->capabilities);
if (flags & TIPC_NOTIFY_NODE_UP)
- tipc_named_node_up(net, sk.node, n->capabilities);
+ tipc_named_node_up(net, node, n->capabilities);
if (flags & TIPC_NOTIFY_LINK_UP) {
- tipc_mon_peer_up(net, sk.node, bearer_id);
+ tipc_mon_peer_up(net, node, bearer_id);
tipc_nametbl_publish(net, &ua, &sk, sk.ref);
}
if (flags & TIPC_NOTIFY_LINK_DOWN) {
- tipc_mon_peer_down(net, sk.node, bearer_id);
+ tipc_mon_peer_down(net, node, bearer_id);
tipc_nametbl_withdraw(net, &ua, &sk, sk.ref);
}
}
From: Christian Brauner <[email protected]>
[ Upstream commit 1a2beb3d5a0b4051067ecf49ea799bee340e0e7c ]
At least one of the addresses will stop functioning after February.
Signed-off-by: Christian Brauner <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
.mailmap | 3 +++
1 file changed, 3 insertions(+)
diff --git a/.mailmap b/.mailmap
index b344067e0acb6..3979fb166e0fd 100644
--- a/.mailmap
+++ b/.mailmap
@@ -74,6 +74,9 @@ Chris Chiu <[email protected]> <[email protected]>
Christian Borntraeger <[email protected]> <[email protected]>
Christian Borntraeger <[email protected]> <[email protected]>
Christian Borntraeger <[email protected]> <[email protected]>
+Christian Brauner <[email protected]> <[email protected]>
+Christian Brauner <[email protected]> <[email protected]>
+Christian Brauner <[email protected]> <[email protected]>
Christophe Ricard <[email protected]>
Christoph Hellwig <[email protected]>
Colin Ian King <[email protected]> <[email protected]>
--
2.34.1
From: Alex Henrie <[email protected]>
commit e26a78057c25dd56f112d536319c38735ed92ba4 upstream.
Markus reports that his 2011 MacBook with a German ISO keyboard (USB
product code 05ac:0246, HID country code 13) has the tilde key quirk.
Seeing as all of the standalone Apple ISO keyboards since about 2008
have the quirk, it seems reasonable to assume that once the integrated
laptop keyboards started having the quirk, they likewise never stopped
having it.
Reported-by: Markus Wageringel <[email protected]>
Signed-off-by: Alex Henrie <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hid/hid-apple.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -580,49 +580,49 @@ static const struct hid_device_id apple_
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO),
- .driver_data = APPLE_HAS_FN },
+ .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
From: Li Zhijian <[email protected]>
[ Upstream commit 92d25637a3a45904292c93f1863c6bbda4e3e38f ]
We have some many cases that will create child process as well, such as
pidfd_wait. Previously, we will signal/kill the parent process when it
is time out, but this signal will not be sent to its child process. In
such case, if child process doesn't terminate itself, ksefltest framework
will hang forever.
Here we group all its child processes so that kill() can signal all of
them in timeout.
Fixed change log: Shuah Khan <[email protected]>
Suggested-by: yang xu <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/testing/selftests/kselftest_harness.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 79a182cfa43ad..78e59620d28de 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -875,7 +875,8 @@ static void __timeout_handler(int sig, siginfo_t *info, void *ucontext)
}
t->timed_out = true;
- kill(t->pid, SIGKILL);
+ // signal process group
+ kill(-(t->pid), SIGKILL);
}
void __wait_for_test(struct __test_metadata *t)
@@ -985,6 +986,7 @@ void __run_test(struct __fixture_metadata *f,
ksft_print_msg("ERROR SPAWNING TEST CHILD\n");
t->passed = 0;
} else if (t->pid == 0) {
+ setpgrp();
t->fn(t, variant);
if (t->skip)
_exit(255);
--
2.34.1
From: Eric W. Biederman <[email protected]>
commit c16bdeb5a39ffa3f32b32f812831a2092d2a3061 upstream.
Solar Designer <[email protected]> wrote:
> I'm not aware of anyone actually running into this issue and reporting
> it. The systems that I personally know use suexec along with rlimits
> still run older/distro kernels, so would not yet be affected.
>
> So my mention was based on my understanding of how suexec works, and
> code review. Specifically, Apache httpd has the setting RLimitNPROC,
> which makes it set RLIMIT_NPROC:
>
> https://httpd.apache.org/docs/2.4/mod/core.html#rlimitnproc
>
> The above documentation for it includes:
>
> "This applies to processes forked from Apache httpd children servicing
> requests, not the Apache httpd children themselves. This includes CGI
> scripts and SSI exec commands, but not any processes forked from the
> Apache httpd parent, such as piped logs."
>
> In code, there are:
>
> ./modules/generators/mod_cgid.c: ( (cgid_req.limits.limit_nproc_set) && ((rc = apr_procattr_limit_set(procattr, APR_LIMIT_NPROC,
> ./modules/generators/mod_cgi.c: ((rc = apr_procattr_limit_set(procattr, APR_LIMIT_NPROC,
> ./modules/filters/mod_ext_filter.c: rv = apr_procattr_limit_set(procattr, APR_LIMIT_NPROC, conf->limit_nproc);
>
> For example, in mod_cgi.c this is in run_cgi_child().
>
> I think this means an httpd child sets RLIMIT_NPROC shortly before it
> execs suexec, which is a SUID root program. suexec then switches to the
> target user and execs the CGI script.
>
> Before 2863643fb8b9, the setuid() in suexec would set the flag, and the
> target user's process count would be checked against RLIMIT_NPROC on
> execve(). After 2863643fb8b9, the setuid() in suexec wouldn't set the
> flag because setuid() is (naturally) called when the process is still
> running as root (thus, has those limits bypass capabilities), and
> accordingly execve() would not check the target user's process count
> against RLIMIT_NPROC.
In commit 2863643fb8b9 ("set_user: add capability check when
rlimit(RLIMIT_NPROC) exceeds") capable calls were added to set_user to
make it more consistent with fork. Unfortunately because of call site
differences those capable calls were checking the credentials of the
user before set*id() instead of after set*id().
This breaks enforcement of RLIMIT_NPROC for applications that set the
rlimit and then call set*id() while holding a full set of
capabilities. The capabilities are only changed in the new credential
in security_task_fix_setuid().
The code in apache suexec appears to follow this pattern.
Commit 909cc4ae86f3 ("[PATCH] Fix two bugs with process limits
(RLIMIT_NPROC)") where this check was added describes the targes of this
capability check as:
2/ When a root-owned process (e.g. cgiwrap) sets up process limits and then
calls setuid, the setuid should fail if the user would then be running
more than rlim_cur[RLIMIT_NPROC] processes, but it doesn't. This patch
adds an appropriate test. With this patch, and per-user process limit
imposed in cgiwrap really works.
So the original use case of this check also appears to match the broken
pattern.
Restore the enforcement of RLIMIT_NPROC by removing the bad capable
checks added in set_user. This unfortunately restores the
inconsistent state the code has been in for the last 11 years, but
dealing with the inconsistencies looks like a larger problem.
Cc: [email protected]
Link: https://lore.kernel.org/all/[email protected]/
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 2863643fb8b9 ("set_user: add capability check when rlimit(RLIMIT_NPROC) exceeds")
History-Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Reviewed-by: Solar Designer <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/sys.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -480,8 +480,7 @@ static int set_user(struct cred *new)
* failure to the execve() stage.
*/
if (is_ucounts_overlimit(new->ucounts, UCOUNT_RLIMIT_NPROC, rlimit(RLIMIT_NPROC)) &&
- new_user != INIT_USER &&
- !capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN))
+ new_user != INIT_USER)
current->flags |= PF_NPROC_EXCEEDED;
else
current->flags &= ~PF_NPROC_EXCEEDED;
On 2/21/22 00:46, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
Building mips:malta_defconfig ... failed
--------------
Error log:
net/netfilter/xt_socket.c: In function 'socket_mt_destroy':
net/netfilter/xt_socket.c:224:17: error: implicit declaration of function 'nf_defrag_ipv6_disable'; did you mean 'nf_defrag_ipv4_disable'? [
Inherited from upstream.
Guenter
From: Hao Luo <[email protected]>
commit 9497c458c10b049438ef6e6ddda898edbc3ec6a8 upstream.
This test verifies that a ksym of non-struct can not be directly
updated.
Signed-off-by: Hao Luo <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Cc: [email protected] # 5.16.x
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/testing/selftests/bpf/prog_tests/ksyms_btf.c | 14 ++++
tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c | 29 ++++++++++
2 files changed, 43 insertions(+)
create mode 100644 tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c
--- a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
@@ -8,6 +8,7 @@
#include "test_ksyms_btf_null_check.skel.h"
#include "test_ksyms_weak.skel.h"
#include "test_ksyms_weak.lskel.h"
+#include "test_ksyms_btf_write_check.skel.h"
static int duration;
@@ -137,6 +138,16 @@ cleanup:
test_ksyms_weak_lskel__destroy(skel);
}
+static void test_write_check(void)
+{
+ struct test_ksyms_btf_write_check *skel;
+
+ skel = test_ksyms_btf_write_check__open_and_load();
+ ASSERT_ERR_PTR(skel, "unexpected load of a prog writing to ksym memory\n");
+
+ test_ksyms_btf_write_check__destroy(skel);
+}
+
void test_ksyms_btf(void)
{
int percpu_datasec;
@@ -167,4 +178,7 @@ void test_ksyms_btf(void)
if (test__start_subtest("weak_ksyms_lskel"))
test_weak_syms_lskel();
+
+ if (test__start_subtest("write_check"))
+ test_write_check();
}
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Google */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+extern const int bpf_prog_active __ksym; /* int type global var. */
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+ int *active;
+ __u32 cpu;
+
+ cpu = bpf_get_smp_processor_id();
+ active = (int *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+ if (active) {
+ /* Kernel memory obtained from bpf_{per,this}_cpu_ptr
+ * is read-only, should _not_ pass verification.
+ */
+ /* WRITE_ONCE */
+ *(volatile int *)active = -1;
+ }
+
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";
From: Joakim Tjernlund <[email protected]>
commit 4f6de676d94ee8ddfc2e7e7cd935fc7cb2feff3a upstream.
In commit:
114945d84a30a5fe ("arm64: Fix labels in el2_setup macros")
We renamed a label from '1' to '.Lskip_gicv3_\@', but failed to update
a branch to it, which now targets a later label also called '1'.
The branch is taken rarely, when GICv3 is present but SRE is disabled
at EL3, causing a boot-time crash.
Update the caller to the new label name.
Fixes: 114945d84a30 ("arm64: Fix labels in el2_setup macros")
Cc: <[email protected]> # 5.12.x
Signed-off-by: Joakim Tjernlund <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Mark Rutland <[email protected]>
Reviewed-by: Marc Zyngier <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm64/include/asm/el2_setup.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/include/asm/el2_setup.h
+++ b/arch/arm64/include/asm/el2_setup.h
@@ -106,7 +106,7 @@
msr_s SYS_ICC_SRE_EL2, x0
isb // Make sure SRE is now set
mrs_s x0, SYS_ICC_SRE_EL2 // Read SRE back,
- tbz x0, #0, 1f // and check that it sticks
+ tbz x0, #0, .Lskip_gicv3_\@ // and check that it sticks
msr_s SYS_ICH_HCR_EL2, xzr // Reset ICC_HCR_EL2 to defaults
.Lskip_gicv3_\@:
.endm
From: Darrick J. Wong <[email protected]>
[ Upstream commit 5679897eb104cec9e99609c3f045a0c20603da4c ]
Strangely, sync_filesystem ignores the return code from the ->sync_fs
call, which means that syscalls like syncfs(2) never see the error.
This doesn't seem right, so fix that.
Signed-off-by: Darrick J. Wong <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
fs/sync.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/fs/sync.c b/fs/sync.c
index 3ce8e2137f310..c7690016453e4 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -29,7 +29,7 @@
*/
int sync_filesystem(struct super_block *sb)
{
- int ret;
+ int ret = 0;
/*
* We need to be protected against the filesystem going from
@@ -52,15 +52,21 @@ int sync_filesystem(struct super_block *sb)
* at a time.
*/
writeback_inodes_sb(sb, WB_REASON_SYNC);
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 0);
+ if (sb->s_op->sync_fs) {
+ ret = sb->s_op->sync_fs(sb, 0);
+ if (ret)
+ return ret;
+ }
ret = sync_blockdev_nowait(sb->s_bdev);
- if (ret < 0)
+ if (ret)
return ret;
sync_inodes_sb(sb);
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 1);
+ if (sb->s_op->sync_fs) {
+ ret = sb->s_op->sync_fs(sb, 1);
+ if (ret)
+ return ret;
+ }
return sync_blockdev(sb->s_bdev);
}
EXPORT_SYMBOL(sync_filesystem);
--
2.34.1
On Mon, Feb 21, 2022 at 9:01 AM Greg Kroah-Hartman
<[email protected]> wrote:
>
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Hi Greg,
Compiled and booted on my test system Lenovo P50s: Intel Core i7
No emergency and critical messages in the dmesg
./perf bench sched all
# Running sched/messaging benchmark...
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 0.441 [sec]
# Running sched/pipe benchmark...
# Executed 1000000 pipe operations between two processes
Total time: 10.147 [sec]
10.147192 usecs/op
98549 ops/sec
Tested-by: Zan Aziz <[email protected]>
Thanks
-Zan
From: Brenda Streiff <[email protected]>
[ Upstream commit 8a4c5b2a6d8ea079fa36034e8167de87ab6f8880 ]
The 'shell' built-in only returns the first 256 bytes of the command's
output. In some cases, 'shell' is used to return a path; by bumping up
the buffer size to 4096 this lets us capture up to PATH_MAX.
The specific case where I ran into this was due to commit 1e860048c53e
("gcc-plugins: simplify GCC plugin-dev capability test"). After this
change, we now use `$(shell,$(CC) -print-file-name=plugin)` to return
a path; if the gcc path is particularly long, then the path ends up
truncated at the 256 byte mark, which makes the HAVE_GCC_PLUGINS
depends test always fail.
Signed-off-by: Brenda Streiff <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
scripts/kconfig/preprocess.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 0590f86df6e40..748da578b418c 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -141,7 +141,7 @@ static char *do_lineno(int argc, char *argv[])
static char *do_shell(int argc, char *argv[])
{
FILE *p;
- char buf[256];
+ char buf[4096];
char *cmd;
size_t nread;
int i;
--
2.34.1
On 2/21/2022 12:46 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels:
Tested-by: Florian Fainelli <[email protected]>
--
Florian
On 21/02/22 15.46, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
Successfully cross-compiled for arm64 (bcm2711_defconfig, gcc 10.2.0) and
powerpc (ps3_defconfig, gcc 11.2.0).
Tested-by: Bagas Sanjaya <[email protected]>
--
An old man doll... just what I always wanted! - Clara
On 2/21/22 00:46, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Built and booted successfully on RISC-V RV64 (HiFive Unmatched).
Tested-by: Ron Economos <[email protected]>
On Mon, Feb 21, 2022 at 09:46:59AM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
Hi Greg,
5.16.11-rc1 tested.
Run tested on:
- Allwinner H6 (Tanix TX6)
- Intel Tiger Lake x86_64 (nuc11 i7-1165G7)
In addition - build tested on:
- Allwinner A64
- Allwinner H3
- Allwinner H5
- NXP iMX6
- NXP iMX8
- Qualcomm Dragonboard
- Rockchip RK3288
- Rockchip RK3328
- Rockchip RK3399pro
- Samsung Exynos
Tested-by: Rudi Heitbaum <[email protected]>
--
Rudi
On Mon, Feb 21, 2022 at 09:46:59AM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.11-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
Tested rc1 against the Fedora build system (aarch64, armv7, ppc64le,
s390x, x86_64), and boot tested x86_64. No regressions noted.
Tested-by: Justin M. Forbes <[email protected]>
On Mon, Feb 21, 2022, at 3:46 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.16.11 release.
> There are 227 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 23 Feb 2022 08:48:58 +0000.
> Anything received after that time might be too late.
5.16.11-rc1 compiled and booted with no errors or regressions on my x86_64 test system.
Tested-by: Slade Watkins <[email protected]>
Cheers,
Slade