From: Kai-Heng Feng <[email protected]>
[ Upstream commit eb6964fa6509b4f1152313f1e0bb67f0c54a6046 ]
This device uses the SIPODEV SP1064 touchpad, which does not
supply descriptors, so it has to be added to the override
list.
BugLink: https://bugs.launchpad.net/bugs/1825718
Signed-off-by: Kai-Heng Feng <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
index fd1b6eea6d2f..75078c83be1a 100644
--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -354,6 +354,14 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
},
.driver_data = (void *)&sipodev_desc
},
+ {
+ .ident = "iBall Aer3",
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "iBall"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Aer3"),
+ },
+ .driver_data = (void *)&sipodev_desc
+ },
{ } /* Terminate list */
};
--
2.20.1
From: Matt Flax <[email protected]>
[ Upstream commit f3df05c805983427319eddc2411a2105ee1757cf ]
The cs4265_readable_register function stopped short of the maximum
register.
An example bug is taken from :
https://github.com/Audio-Injector/Ultra/issues/25
Where alsactl store fails with :
Cannot read control '2,0,0,C Data Buffer,0': Input/output error
This patch fixes the bug by setting the cs4265 to have readable
registers up to the maximum hardware register CS4265_MAX_REGISTER.
Signed-off-by: Matt Flax <[email protected]>
Reviewed-by: Charles Keepax <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/cs4265.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c
index ab27d2b94d02..c0190ec59e74 100644
--- a/sound/soc/codecs/cs4265.c
+++ b/sound/soc/codecs/cs4265.c
@@ -60,7 +60,7 @@ static const struct reg_default cs4265_reg_defaults[] = {
static bool cs4265_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
- case CS4265_CHIP_ID ... CS4265_SPDIF_CTL2:
+ case CS4265_CHIP_ID ... CS4265_MAX_REGISTER:
return true;
default:
return false;
--
2.20.1
From: Libin Yang <[email protected]>
[ Upstream commit 5087a8f17df868601cd7568299e91c28086d2b45 ]
If playback/capture is paused and system enters S3, after system returns
from suspend, BE dai needs to call prepare() callback when playback/capture
is released from pause if RESUME_INFO flag is not set.
Currently, the dpcm_be_dai_prepare() function will block calling prepare()
if the pcm is in SND_SOC_DPCM_STATE_PAUSED state. This will cause the
following test case fail if the pcm uses BE:
playback -> pause -> S3 suspend -> S3 resume -> pause release
The playback may exit abnormally when pause is released because the BE dai
prepare() is not called.
This patch allows dpcm_be_dai_prepare() to call dai prepare() callback in
SND_SOC_DPCM_STATE_PAUSED state.
Signed-off-by: Libin Yang <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/soc-pcm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index be80a12fba27..2a3aacec8057 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2469,7 +2469,8 @@ int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream)
if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
(be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
- (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
+ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) &&
+ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
continue;
dev_dbg(be->dev, "ASoC: prepare BE %s\n",
--
2.20.1
From: Viorel Suman <[email protected]>
[ Upstream commit 176a11834b65ec35e3b7a953f87fb9cc41309497 ]
snd_soc_component_update_bits() may return 1 if operation
was successful and the value of the register changed.
Return a non-zero in ak4458_rstn_control for an error only.
Signed-off-by: Shengjiu Wang <[email protected]>
Signed-off-by: Viorel Suman <[email protected]>
Reviewed-by: Daniel Baluta <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/ak4458.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c
index 4c5c3ec92609..71562154c0b1 100644
--- a/sound/soc/codecs/ak4458.c
+++ b/sound/soc/codecs/ak4458.c
@@ -304,7 +304,10 @@ static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
AK4458_00_CONTROL1,
AK4458_RSTN_MASK,
0x0);
- return ret;
+ if (ret < 0)
+ return ret;
+
+ return 0;
}
static int ak4458_hw_params(struct snd_pcm_substream *substream,
--
2.20.1
From: YueHaibing <[email protected]>
[ Upstream commit 5caaf29af5ca82d5da8bc1d0ad07d9e664ccf1d8 ]
If spi_register_master fails in spi_bitbang_start
because device_add failure, We should return the
error code other than 0, otherwise calling
spi_bitbang_stop may trigger NULL pointer dereference
like this:
BUG: KASAN: null-ptr-deref in __list_del_entry_valid+0x45/0xd0
Read of size 8 at addr 0000000000000000 by task syz-executor.0/3661
CPU: 0 PID: 3661 Comm: syz-executor.0 Not tainted 5.1.0+ #28
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
Call Trace:
dump_stack+0xa9/0x10e
? __list_del_entry_valid+0x45/0xd0
? __list_del_entry_valid+0x45/0xd0
__kasan_report+0x171/0x18d
? __list_del_entry_valid+0x45/0xd0
kasan_report+0xe/0x20
__list_del_entry_valid+0x45/0xd0
spi_unregister_controller+0x99/0x1b0
spi_lm70llp_attach+0x3ae/0x4b0 [spi_lm70llp]
? 0xffffffffc1128000
? klist_next+0x131/0x1e0
? driver_detach+0x40/0x40 [parport]
port_check+0x3b/0x50 [parport]
bus_for_each_dev+0x115/0x180
? subsys_dev_iter_exit+0x20/0x20
__parport_register_driver+0x1f0/0x210 [parport]
? 0xffffffffc1150000
do_one_initcall+0xb9/0x3b5
? perf_trace_initcall_level+0x270/0x270
? kasan_unpoison_shadow+0x30/0x40
? kasan_unpoison_shadow+0x30/0x40
do_init_module+0xe0/0x330
load_module+0x38eb/0x4270
? module_frob_arch_sections+0x20/0x20
? kernel_read_file+0x188/0x3f0
? find_held_lock+0x6d/0xd0
? fput_many+0x1a/0xe0
? __do_sys_finit_module+0x162/0x190
__do_sys_finit_module+0x162/0x190
? __ia32_sys_init_module+0x40/0x40
? __mutex_unlock_slowpath+0xb4/0x3f0
? wait_for_completion+0x240/0x240
? vfs_write+0x160/0x2a0
? lockdep_hardirqs_off+0xb5/0x100
? mark_held_locks+0x1a/0x90
? do_syscall_64+0x14/0x2a0
do_syscall_64+0x72/0x2a0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Reported-by: Hulk Robot <[email protected]>
Fixes: 702a4879ec33 ("spi: bitbang: Let spi_bitbang_start() take a reference to master")
Signed-off-by: YueHaibing <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Axel Lin <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/spi/spi-bitbang.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index dd9a8c54a693..be95be4fe985 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -403,7 +403,7 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
if (ret)
spi_master_put(master);
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(spi_bitbang_start);
--
2.20.1
From: Ranjani Sridharan <[email protected]>
[ Upstream commit 34ac3c3eb8f0c07252ceddf0a22dd240e5c91ccb ]
Removing link components results in topology unloading. So,
acquire the client_mutex before removing components in
soc_remove_link_components. This will prevent the lockdep warning
seen when dai links are removed during topology removal.
Signed-off-by: Ranjani Sridharan <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/soc-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a7b4fab92f26..a4668a788ed5 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1008,12 +1008,14 @@ static void soc_remove_link_components(struct snd_soc_card *card,
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
+ mutex_lock(&client_mutex);
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
if (component->driver->remove_order == order)
soc_remove_component(component);
}
+ mutex_unlock(&client_mutex);
}
static void soc_remove_dai_links(struct snd_soc_card *card)
--
2.20.1
From: Błażej Szczygieł <[email protected]>
[ Upstream commit abf82e8f7e9af40a49e3d905187c662a43c96c8f ]
Since recent high resolution scrolling changes the A4Tech driver must
check for the "REL_WHEEL_HI_RES" usage code.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203369
Fixes: 2dc702c991e3774af9d7ce410eef410ca9e2357e ("HID: input: use the Resolution Multiplier for high-resolution scrolling")
Signed-off-by: Błażej Szczygieł <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/hid/hid-a4tech.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-a4tech.c b/drivers/hid/hid-a4tech.c
index 9428ea7cdf8a..c3a6ce3613fe 100644
--- a/drivers/hid/hid-a4tech.c
+++ b/drivers/hid/hid-a4tech.c
@@ -38,8 +38,10 @@ static int a4_input_mapped(struct hid_device *hdev, struct hid_input *hi,
{
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
- if (usage->type == EV_REL && usage->code == REL_WHEEL)
+ if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
set_bit(REL_HWHEEL, *bit);
+ set_bit(REL_HWHEEL_HI_RES, *bit);
+ }
if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007)
return -1;
@@ -60,7 +62,7 @@ static int a4_event(struct hid_device *hdev, struct hid_field *field,
input = field->hidinput->input;
if (a4->quirks & A4_2WHEEL_MOUSE_HACK_B8) {
- if (usage->type == EV_REL && usage->code == REL_WHEEL) {
+ if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
a4->delayed_value = value;
return 1;
}
@@ -68,6 +70,8 @@ static int a4_event(struct hid_device *hdev, struct hid_field *field,
if (usage->hid == 0x000100b8) {
input_event(input, EV_REL, value ? REL_HWHEEL :
REL_WHEEL, a4->delayed_value);
+ input_event(input, EV_REL, value ? REL_HWHEEL_HI_RES :
+ REL_WHEEL_HI_RES, a4->delayed_value * 120);
return 1;
}
}
@@ -77,8 +81,9 @@ static int a4_event(struct hid_device *hdev, struct hid_field *field,
return 1;
}
- if (usage->code == REL_WHEEL && a4->hw_wheel) {
+ if (usage->code == REL_WHEEL_HI_RES && a4->hw_wheel) {
input_event(input, usage->type, REL_HWHEEL, value);
+ input_event(input, usage->type, REL_HWHEEL_HI_RES, value * 120);
return 1;
}
--
2.20.1
From: Kovács Tamás <[email protected]>
[ Upstream commit 3e951e7914408aee196db77a5cb377801c85692a ]
This tablet has an incorrect acpi identifier just like
Thinkpad10 tablet, which is why it is trying to load the RT5640 driver
instead of the RT5762 driver. The RT5640 driver, on the other hand, checks
the hardware ID, so no driver are loaded during boot. This fix resolves to
load the RT5672 driver on this tablet during boot. It also provides the
correct IO configuration, like the jack detect mode 3, for 1.8V pullup. I
would like to thank Pierre-Louis Bossart for helping with this patch.
Signed-off-by: Kovács Tamás <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/rt5670.c | 12 ++++++++++++
.../soc/intel/common/soc-acpi-intel-byt-match.c | 17 +++++++++++++++++
2 files changed, 29 insertions(+)
diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c
index 9a037108b1ae..a746e11ccfe3 100644
--- a/sound/soc/codecs/rt5670.c
+++ b/sound/soc/codecs/rt5670.c
@@ -2882,6 +2882,18 @@ static const struct dmi_system_id dmi_platform_intel_quirks[] = {
RT5670_DEV_GPIO |
RT5670_JD_MODE3),
},
+ {
+ .callback = rt5670_quirk_cb,
+ .ident = "Aegex 10 tablet (RU2)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AEGEX"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "RU2"),
+ },
+ .driver_data = (unsigned long *)(RT5670_DMIC_EN |
+ RT5670_DMIC2_INR |
+ RT5670_DEV_GPIO |
+ RT5670_JD_MODE3),
+ },
{}
};
diff --git a/sound/soc/intel/common/soc-acpi-intel-byt-match.c b/sound/soc/intel/common/soc-acpi-intel-byt-match.c
index fe812a909db4..3a37f4eca437 100644
--- a/sound/soc/intel/common/soc-acpi-intel-byt-match.c
+++ b/sound/soc/intel/common/soc-acpi-intel-byt-match.c
@@ -22,6 +22,7 @@ static unsigned long byt_machine_id;
#define BYT_THINKPAD_10 1
#define BYT_POV_P1006W 2
+#define BYT_AEGEX_10 3
static int byt_thinkpad10_quirk_cb(const struct dmi_system_id *id)
{
@@ -35,6 +36,12 @@ static int byt_pov_p1006w_quirk_cb(const struct dmi_system_id *id)
return 1;
}
+static int byt_aegex10_quirk_cb(const struct dmi_system_id *id)
+{
+ byt_machine_id = BYT_AEGEX_10;
+ return 1;
+}
+
static const struct dmi_system_id byt_table[] = {
{
.callback = byt_thinkpad10_quirk_cb,
@@ -75,9 +82,18 @@ static const struct dmi_system_id byt_table[] = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
},
},
+ {
+ /* Aegex 10 tablet (RU2) */
+ .callback = byt_aegex10_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AEGEX"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "RU2"),
+ },
+ },
{ }
};
+/* The Thinkapd 10 and Aegex 10 tablets have the same ID problem */
static struct snd_soc_acpi_mach byt_thinkpad_10 = {
.id = "10EC5640",
.drv_name = "cht-bsw-rt5672",
@@ -104,6 +120,7 @@ static struct snd_soc_acpi_mach *byt_quirk(void *arg)
switch (byt_machine_id) {
case BYT_THINKPAD_10:
+ case BYT_AEGEX_10:
return &byt_thinkpad_10;
case BYT_POV_P1006W:
return &byt_pov_p1006w;
--
2.20.1
From: Hsin-Yi Wang <[email protected]>
[ Upstream commit 8fd7a37b191f93737f6280a9b5de65f98acc12c9 ]
detatch panel in mtk_dsi_destroy_conn_enc(), since .bind will try to
attach it again.
Fixes: 2e54c14e310f ("drm/mediatek: Add DSI sub driver")
Signed-off-by: Hsin-Yi Wang <[email protected]>
Signed-off-by: CK Hu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index b00eb2d2e086..1ae3be99e0ff 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -844,6 +844,8 @@ static void mtk_dsi_destroy_conn_enc(struct mtk_dsi *dsi)
/* Skip connector cleanup if creation was delegated to the bridge */
if (dsi->conn.dev)
drm_connector_cleanup(&dsi->conn);
+ if (dsi->panel)
+ drm_panel_detach(dsi->panel);
}
static void mtk_dsi_ddp_start(struct mtk_ddp_comp *comp)
--
2.20.1
From: Hsin-Yi Wang <[email protected]>
[ Upstream commit 2458d9d6d94be982b917e93c61a89b4426f32e31 ]
mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), which
needs ovl irq for drm_crtc_wait_one_vblank(), since after mtk_dsi_stop() is
called, ovl irq will be disabled. If drm_crtc_wait_one_vblank() is called
after last irq, it will timeout with this message: "vblank wait timed out
on crtc 0". This happens sometimes when turning off the screen.
In drm_atomic_helper.c#disable_outputs(),
the calling sequence when turning off the screen is:
1. mtk_dsi_encoder_disable()
--> mtk_output_dsi_disable()
--> mtk_dsi_stop(); /* sometimes make vblank timeout in
atomic_disable */
--> mtk_dsi_poweroff();
2. mtk_drm_crtc_atomic_disable()
--> drm_crtc_wait_one_vblank();
...
--> mtk_dsi_ddp_stop()
--> mtk_dsi_poweroff();
mtk_dsi_poweroff() has reference count design, change to make
mtk_dsi_stop() called in mtk_dsi_poweroff() when refcount is 0.
Fixes: 0707632b5bac ("drm/mediatek: update DSI sub driver flow for sending commands to panel")
Signed-off-by: Hsin-Yi Wang <[email protected]>
Signed-off-by: CK Hu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 1ae3be99e0ff..179f2b080342 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -630,6 +630,15 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi)
if (--dsi->refcount != 0)
return;
+ /*
+ * mtk_dsi_stop() and mtk_dsi_start() is asymmetric, since
+ * mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(),
+ * which needs irq for vblank, and mtk_dsi_stop() will disable irq.
+ * mtk_dsi_start() needs to be called in mtk_output_dsi_enable(),
+ * after dsi is fully set.
+ */
+ mtk_dsi_stop(dsi);
+
if (!mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500)) {
if (dsi->panel) {
if (drm_panel_unprepare(dsi->panel)) {
@@ -696,7 +705,6 @@ static void mtk_output_dsi_disable(struct mtk_dsi *dsi)
}
}
- mtk_dsi_stop(dsi);
mtk_dsi_poweroff(dsi);
dsi->enabled = false;
--
2.20.1
From: Dave Jiang <[email protected]>
[ Upstream commit 7560cc3ca7d9d11555f80c830544e463fcdb28b8 ]
Lockdep debug reported lock inversion related with the iommu code
caused by dmar_insert_one_dev_info() grabbing the iommu->lock and
the device_domain_lock out of order versus the code path in
iommu_flush_dev_iotlb(). Expanding the scope of the iommu->lock and
reversing the order of lock acquisition fixes the issue.
[ 76.238180] dsa_bus wq0.0: dsa wq wq0.0 disabled
[ 76.248706]
[ 76.250486] ========================================================
[ 76.257113] WARNING: possible irq lock inversion dependency detected
[ 76.263736] 5.1.0-rc5+ #162 Not tainted
[ 76.267854] --------------------------------------------------------
[ 76.274485] systemd-journal/521 just changed the state of lock:
[ 76.280685] 0000000055b330f5 (device_domain_lock){..-.}, at: iommu_flush_dev_iotlb.part.63+0x29/0x90
[ 76.290099] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 76.297093] (&(&iommu->lock)->rlock){+.+.}
[ 76.297094]
[ 76.297094]
[ 76.297094] and interrupts could create inverse lock ordering between them.
[ 76.297094]
[ 76.314257]
[ 76.314257] other info that might help us debug this:
[ 76.321448] Possible interrupt unsafe locking scenario:
[ 76.321448]
[ 76.328907] CPU0 CPU1
[ 76.333777] ---- ----
[ 76.338642] lock(&(&iommu->lock)->rlock);
[ 76.343165] local_irq_disable();
[ 76.349422] lock(device_domain_lock);
[ 76.356116] lock(&(&iommu->lock)->rlock);
[ 76.363154] <Interrupt>
[ 76.366134] lock(device_domain_lock);
[ 76.370548]
[ 76.370548] *** DEADLOCK ***
Fixes: 745f2586e78e ("iommu/vt-d: Simplify function get_domain_for_dev()")
Signed-off-by: Dave Jiang <[email protected]>
Reviewed-by: Lu Baolu <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/iommu/intel-iommu.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0feb3f70da16..c82d5f1bd306 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2509,6 +2509,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
}
}
+ spin_lock(&iommu->lock);
spin_lock_irqsave(&device_domain_lock, flags);
if (dev)
found = find_domain(dev);
@@ -2524,17 +2525,16 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
if (found) {
spin_unlock_irqrestore(&device_domain_lock, flags);
+ spin_unlock(&iommu->lock);
free_devinfo_mem(info);
/* Caller must free the original domain */
return found;
}
- spin_lock(&iommu->lock);
ret = domain_attach_iommu(domain, iommu);
- spin_unlock(&iommu->lock);
-
if (ret) {
spin_unlock_irqrestore(&device_domain_lock, flags);
+ spin_unlock(&iommu->lock);
free_devinfo_mem(info);
return NULL;
}
@@ -2544,6 +2544,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
if (dev)
dev->archdata.iommu = info;
spin_unlock_irqrestore(&device_domain_lock, flags);
+ spin_unlock(&iommu->lock);
/* PASID table is mandatory for a PCI device in scalable mode. */
if (dev && dev_is_pci(dev) && sm_supported(iommu)) {
--
2.20.1
From: Yu-Hsuan Hsu <[email protected]>
[ Upstream commit 5628c8979642a076f91ee86c3bae5ad251639af0 ]
The supported formats are S16_LE and S24_LE now. However, by datasheet
of max98090, S24_LE is only supported when it is in the right justified
mode. We should remove 24-bit format if it is not in that mode to avoid
triggering error.
Signed-off-by: Yu-Hsuan Hsu <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/max98090.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 7619ea31ab50..ada8c25e643d 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struct max98090_priv *max98090,
return 0;
}
+static int max98090_dai_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component);
+ unsigned int fmt = max98090->dai_fmt;
+
+ /* Remove 24-bit format support if it is not in right justified mode. */
+ if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) {
+ substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+ snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16, 16);
+ }
+ return 0;
+}
+
static int max98090_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect);
#define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops max98090_dai_ops = {
+ .startup = max98090_dai_startup,
.set_sysclk = max98090_dai_set_sysclk,
.set_fmt = max98090_dai_set_fmt,
.set_tdm_slot = max98090_set_tdm_slot,
--
2.20.1
From: Ranjani Sridharan <[email protected]>
[ Upstream commit d6947bb234dcc86e878d502516d0fb9d635aa2ae ]
HDA_DEV_ASOC type codec device refcounts are managed differently
from HDA_DEV_LEGACY devices. The refcount is released explicitly
in snd_hdac_ext_bus_device_remove() for ASOC type devices.
So, remove the put_device() call in snd_hda_codec_dev_free()
for such devices to make the refcount balanced. This will prevent
the NULL pointer exception when the codec driver is released
after the card is freed.
Signed-off-by: Ranjani Sridharan <[email protected]>
Reviewed-by: Takashi Iwai <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/pci/hda/hda_codec.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b20eb7fc83eb..fcdf2cd3783b 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -840,7 +840,14 @@ static int snd_hda_codec_dev_free(struct snd_device *device)
if (codec->core.type == HDA_DEV_LEGACY)
snd_hdac_device_unregister(&codec->core);
codec_display_power(codec, false);
- put_device(hda_codec_dev(codec));
+
+ /*
+ * In the case of ASoC HD-audio bus, the device refcount is released in
+ * snd_hdac_ext_bus_device_remove() explicitly.
+ */
+ if (codec->core.type == HDA_DEV_LEGACY)
+ put_device(hda_codec_dev(codec));
+
return 0;
}
--
2.20.1
From: Pierre-Louis Bossart <[email protected]>
[ Upstream commit fb54555134b9b17835545e4d096b5550c27eed64 ]
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: 7e7e24d7c7ff0 ("ASoC: Intel: cht_bsw_max98090_ti: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/intel/boards/cht_bsw_max98090_ti.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/cht_bsw_max98090_ti.c b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
index c0e0844f75b9..572e336ae0f9 100644
--- a/sound/soc/intel/boards/cht_bsw_max98090_ti.c
+++ b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
@@ -454,6 +454,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
}
/* override plaform name, if required */
+ snd_soc_card_cht.dev = &pdev->dev;
mach = (&pdev->dev)->platform_data;
platform_name = mach->mach_params.platform;
@@ -463,7 +464,6 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
return ret_val;
/* register the soc card */
- snd_soc_card_cht.dev = &pdev->dev;
snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
if (drv->quirks & QUIRK_PMC_PLT_CLK_0)
--
2.20.1
From: Pierre-Louis Bossart <[email protected]>
[ Upstream commit 79136a016add1acb690fe8d96be50dd22a143d26 ]
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: e4bc6b1195f64 ("ASoC: Intel: bytcht_es8316: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/intel/boards/bytcht_es8316.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/bytcht_es8316.c b/sound/soc/intel/boards/bytcht_es8316.c
index d2a7e6ba11ae..1c686f83220a 100644
--- a/sound/soc/intel/boards/bytcht_es8316.c
+++ b/sound/soc/intel/boards/bytcht_es8316.c
@@ -471,6 +471,7 @@ static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
}
/* override plaform name, if required */
+ byt_cht_es8316_card.dev = dev;
platform_name = mach->mach_params.platform;
ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card,
@@ -538,7 +539,6 @@ static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
(quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo",
mic_name[BYT_CHT_ES8316_MAP(quirk)]);
byt_cht_es8316_card.long_name = long_name;
- byt_cht_es8316_card.dev = dev;
snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv);
ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card);
--
2.20.1
From: Pierre-Louis Bossart <[email protected]>
[ Upstream commit 096701e8131425044d2054a0c210d6ea24ee7386 ]
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: 4506db8043341 ("ASoC: Intel: cht_bsw_nau8824: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/intel/boards/cht_bsw_nau8824.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/cht_bsw_nau8824.c b/sound/soc/intel/boards/cht_bsw_nau8824.c
index 02c2fa239331..20fae391c75a 100644
--- a/sound/soc/intel/boards/cht_bsw_nau8824.c
+++ b/sound/soc/intel/boards/cht_bsw_nau8824.c
@@ -257,6 +257,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
/* override plaform name, if required */
+ snd_soc_card_cht.dev = &pdev->dev;
mach = (&pdev->dev)->platform_data;
platform_name = mach->mach_params.platform;
@@ -266,7 +267,6 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
return ret_val;
/* register the soc card */
- snd_soc_card_cht.dev = &pdev->dev;
ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
if (ret_val) {
dev_err(&pdev->dev,
--
2.20.1
From: Marcus Cooper <[email protected]>
[ Upstream commit 7e46169a5f35762f335898a75d1b8a242f2ae0f5 ]
Although not causing any noticeable issues, the mask for the
channel offset is covering too many bits.
Signed-off-by: Marcus Cooper <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Acked-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/sunxi/sun4i-i2s.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index d5ec1a20499d..8162e107e50b 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -110,7 +110,7 @@
#define SUN8I_I2S_TX_CHAN_MAP_REG 0x44
#define SUN8I_I2S_TX_CHAN_SEL_REG 0x34
-#define SUN8I_I2S_TX_CHAN_OFFSET_MASK GENMASK(13, 11)
+#define SUN8I_I2S_TX_CHAN_OFFSET_MASK GENMASK(13, 12)
#define SUN8I_I2S_TX_CHAN_OFFSET(offset) (offset << 12)
#define SUN8I_I2S_TX_CHAN_EN_MASK GENMASK(11, 4)
#define SUN8I_I2S_TX_CHAN_EN(num_chan) (((1 << num_chan) - 1) << 4)
--
2.20.1
From: Tzung-Bi Shih <[email protected]>
[ Upstream commit 70fc53734e71ce51f46dfcfd1a1c319e1cfe080c ]
Kernel crashes when an ASoC component rebinding.
The dai_link->platforms has been reset to NULL by soc_cleanup_platform()
in soc_cleanup_card_resources() when un-registering component. However,
it has no chance to re-allocate the dai_link->platforms when registering
the component again.
Move the DAI pre-links initiation from snd_soc_register_card() to
snd_soc_instantiate_card() to make sure all DAI pre-links get initiated
when component rebinding.
As an example, by using the following commands:
- echo -n max98357a > /sys/bus/platform/drivers/max98357a/unbind
- echo -n max98357a > /sys/bus/platform/drivers/max98357a/bind
Got the error message:
"Unable to handle kernel NULL pointer dereference at virtual address".
The call trace:
snd_soc_is_matching_component+0x30/0x6c
soc_bind_dai_link+0x16c/0x240
snd_soc_bind_card+0x1e4/0xb10
snd_soc_add_component+0x270/0x300
snd_soc_register_component+0x54/0x6c
Signed-off-by: Tzung-Bi Shih <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/soc-core.c | 27 ++++++++++-----------------
1 file changed, 10 insertions(+), 17 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a4668a788ed5..9df3bdeb5c47 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2069,6 +2069,16 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
int ret, i, order;
mutex_lock(&client_mutex);
+ for_each_card_prelinks(card, i, dai_link) {
+ ret = soc_init_dai_link(card, dai_link);
+ if (ret) {
+ soc_cleanup_platform(card);
+ dev_err(card->dev, "ASoC: failed to init link %s: %d\n",
+ dai_link->name, ret);
+ mutex_unlock(&client_mutex);
+ return ret;
+ }
+ }
mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
card->dapm.bias_level = SND_SOC_BIAS_OFF;
@@ -2793,26 +2803,9 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
*/
int snd_soc_register_card(struct snd_soc_card *card)
{
- int i, ret;
- struct snd_soc_dai_link *link;
-
if (!card->name || !card->dev)
return -EINVAL;
- mutex_lock(&client_mutex);
- for_each_card_prelinks(card, i, link) {
-
- ret = soc_init_dai_link(card, link);
- if (ret) {
- soc_cleanup_platform(card);
- dev_err(card->dev, "ASoC: failed to init link %s\n",
- link->name);
- mutex_unlock(&client_mutex);
- return ret;
- }
- }
- mutex_unlock(&client_mutex);
-
dev_set_drvdata(card->dev, card);
snd_soc_initialize_card_lists(card);
--
2.20.1
From: Amadeusz Sławiński <[email protected]>
[ Upstream commit 04268bf2757a125616b6c2140e6250f43b7b737a ]
When we call snd_soc_component_set_jack(component, NULL, NULL) we should
set rt274->jack to passed jack, so when interrupt is triggered it calls
snd_soc_jack_report(rt274->jack, ...) with proper value.
This fixes problem in machine where in register, we call
snd_soc_register(component, &headset, NULL), which just calls
rt274_mic_detect via callback.
Now when machine driver is removed "headset" will be gone, so we
need to tell codec driver that it's gone with:
snd_soc_register(component, NULL, NULL), but we also need to be able
to handle NULL jack argument here gracefully.
If we don't set it to NULL, next time the rt274_irq runs it will call
snd_soc_jack_report with first argument being invalid pointer and there
will be Oops.
Signed-off-by: Amadeusz Sławiński <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/rt274.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt274.c b/sound/soc/codecs/rt274.c
index adf59039a3b6..cdd312db3e78 100644
--- a/sound/soc/codecs/rt274.c
+++ b/sound/soc/codecs/rt274.c
@@ -405,6 +405,8 @@ static int rt274_mic_detect(struct snd_soc_component *component,
{
struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component);
+ rt274->jack = jack;
+
if (jack == NULL) {
/* Disable jack detection */
regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
@@ -412,7 +414,6 @@ static int rt274_mic_detect(struct snd_soc_component *component,
return 0;
}
- rt274->jack = jack;
regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
RT274_IRQ_EN, RT274_IRQ_EN);
--
2.20.1
From: Hsin-Yi Wang <[email protected]>
[ Upstream commit f0fd848342802bc0f74620d387eead53e8905804 ]
Unbinding components (i.e. mtk_dsi and mtk_disp_ovl/rdma/color) will
trigger master(mtk_drm)'s .unbind(), and currently mtk_drm's unbind
won't actually unbind components. During the next bind,
mtk_drm_kms_init() is called, and the components are added back.
.unbind() should call mtk_drm_kms_deinit() to unbind components.
And since component_master_del() in .remove() will trigger .unbind(),
which will also unregister device, it's fine to remove original functions
called here.
Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <[email protected]>
Signed-off-by: CK Hu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 57ce4708ef1b..e7362bdafa82 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -397,6 +397,7 @@ static void mtk_drm_unbind(struct device *dev)
struct mtk_drm_private *private = dev_get_drvdata(dev);
drm_dev_unregister(private->drm);
+ mtk_drm_kms_deinit(private->drm);
drm_dev_put(private->drm);
private->drm = NULL;
}
@@ -568,13 +569,8 @@ static int mtk_drm_probe(struct platform_device *pdev)
static int mtk_drm_remove(struct platform_device *pdev)
{
struct mtk_drm_private *private = platform_get_drvdata(pdev);
- struct drm_device *drm = private->drm;
int i;
- drm_dev_unregister(drm);
- mtk_drm_kms_deinit(drm);
- drm_dev_put(drm);
-
component_master_del(&pdev->dev, &mtk_drm_ops);
pm_runtime_disable(&pdev->dev);
of_node_put(private->mutex_node);
--
2.20.1
From: Hsin-Yi Wang <[email protected]>
[ Upstream commit cf49b24ffa62766f8f04cd1c4cf17b75d29b240a ]
shutdown all CRTC when unbinding drm driver.
Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <[email protected]>
Signed-off-by: CK Hu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index e7362bdafa82..8718d123ccaa 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -311,6 +311,7 @@ static int mtk_drm_kms_init(struct drm_device *drm)
static void mtk_drm_kms_deinit(struct drm_device *drm)
{
drm_kms_helper_poll_fini(drm);
+ drm_atomic_helper_shutdown(drm);
component_unbind_all(drm->dev, drm);
drm_mode_config_cleanup(drm);
--
2.20.1
From: Ranjani Sridharan <[email protected]>
[ Upstream commit 495f926c68ddb905a7a0192963096138c6a934e1 ]
Move the client_mutex lock to snd_soc_unbind_card() before
removing link components. This prevents the deadlock
in the error path in snd_soc_instantiate_card().
Fixes: 34ac3c3eb8 (ASoC: core: lock client_mutex while removing
link components)
Reported-by: kernelci.org bot <[email protected]>
Signed-off-by: Ranjani Sridharan <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/soc-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9df3bdeb5c47..c010cc864cf3 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1008,14 +1008,12 @@ static void soc_remove_link_components(struct snd_soc_card *card,
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
- mutex_lock(&client_mutex);
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
if (component->driver->remove_order == order)
soc_remove_component(component);
}
- mutex_unlock(&client_mutex);
}
static void soc_remove_dai_links(struct snd_soc_card *card)
@@ -2836,12 +2834,14 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
snd_soc_dapm_shutdown(card);
snd_soc_flush_all_delayed_work(card);
+ mutex_lock(&client_mutex);
/* remove all components used by DAI links on this card */
for_each_comp_order(order) {
for_each_card_rtds(card, rtd) {
soc_remove_link_components(card, rtd, order);
}
}
+ mutex_unlock(&client_mutex);
soc_cleanup_card_resources(card);
if (!unregister)
--
2.20.1
From: Hsin-Yi Wang <[email protected]>
[ Upstream commit a4cd1d2b016d5d043ab2c4b9c4ec50a5805f5396 ]
num_pipes is used for mutex created in mtk_drm_crtc_create(). If we
don't clear num_pipes count, when rebinding driver, the count will
be accumulated. From mtk_disp_mutex_get(), there can only be at most
10 mutex id. Clear this number so it starts from 0 in every rebind.
Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <[email protected]>
Signed-off-by: CK Hu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 8718d123ccaa..bbfe3a464aea 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -400,6 +400,7 @@ static void mtk_drm_unbind(struct device *dev)
drm_dev_unregister(private->drm);
mtk_drm_kms_deinit(private->drm);
drm_dev_put(private->drm);
+ private->num_pipes = 0;
private->drm = NULL;
}
--
2.20.1
From: Alex Levin <[email protected]>
[ Upstream commit 3da428ff2aa5a5191ba2f1630eea75f03242f3f2 ]
When calling kmalloc with GFP_KERNEL in case CONFIG_SLOB is unset,
kmem_cache_alloc_trace is called.
In case CONFIG_TRACING is set, kmem_cache_alloc_trace will ball
slab_alloc, which will call slab_pre_alloc_hook which might_sleep_if.
The context in which it is called in this case, the
intel_sst_interrupt_mrfld, calling a sleeping kmalloc generates a BUG():
Fixes: 972b0d456e64 ("ASoC: Intel: remove GFP_ATOMIC, use GFP_KERNEL")
[ 20.250671] BUG: sleeping function called from invalid context at mm/slab.h:422
[ 20.250683] in_atomic(): 1, irqs_disabled(): 1, pid: 1791, name: Chrome_IOThread
[ 20.250690] CPU: 0 PID: 1791 Comm: Chrome_IOThread Tainted: G W 4.19.43 #61
[ 20.250693] Hardware name: GOOGLE Kefka, BIOS Google_Kefka.7287.337.0 03/02/2017
[ 20.250697] Call Trace:
[ 20.250704] <IRQ>
[ 20.250716] dump_stack+0x7e/0xc3
[ 20.250725] ___might_sleep+0x12a/0x140
[ 20.250731] kmem_cache_alloc_trace+0x53/0x1c5
[ 20.250736] ? update_cfs_rq_load_avg+0x17e/0x1aa
[ 20.250740] ? cpu_load_update+0x6c/0xc2
[ 20.250746] sst_create_ipc_msg+0x2d/0x88
[ 20.250752] intel_sst_interrupt_mrfld+0x12a/0x22c
[ 20.250758] __handle_irq_event_percpu+0x133/0x228
[ 20.250764] handle_irq_event_percpu+0x35/0x7a
[ 20.250768] handle_irq_event+0x36/0x55
[ 20.250773] handle_fasteoi_irq+0xab/0x16c
[ 20.250779] handle_irq+0xd9/0x11e
[ 20.250785] do_IRQ+0x54/0xe0
[ 20.250791] common_interrupt+0xf/0xf
[ 20.250795] </IRQ>
[ 20.250800] RIP: 0010:__lru_cache_add+0x4e/0xad
[ 20.250806] Code: 00 01 48 c7 c7 b8 df 01 00 65 48 03 3c 25 28 f1 00 00 48 8b 48 08 48 89 ca 48 ff ca f6 c1 01 48 0f 44 d0 f0 ff 42 34 0f b6 0f <89> ca fe c2 88 17 48 89 44 cf 08 80 fa 0f 74 0e 48 8b 08 66 85 c9
[ 20.250809] RSP: 0000:ffffa568810bfd98 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffd6
[ 20.250814] RAX: ffffd3b904eb1940 RBX: ffffd3b904eb1940 RCX: 0000000000000004
[ 20.250817] RDX: ffffd3b904eb1940 RSI: ffffa10ee5c47450 RDI: ffffa10efba1dfb8
[ 20.250821] RBP: ffffa568810bfda8 R08: ffffa10ef9c741c1 R09: dead000000000100
[ 20.250824] R10: 0000000000000000 R11: 0000000000000000 R12: ffffa10ee8d52a40
[ 20.250827] R13: ffffa10ee8d52000 R14: ffffa10ee5c47450 R15: 800000013ac65067
[ 20.250835] lru_cache_add_active_or_unevictable+0x4e/0xb8
[ 20.250841] handle_mm_fault+0xd98/0x10c4
[ 20.250848] __do_page_fault+0x235/0x42d
[ 20.250853] ? page_fault+0x8/0x30
[ 20.250858] do_page_fault+0x3d/0x17a
[ 20.250862] ? page_fault+0x8/0x30
[ 20.250866] page_fault+0x1e/0x30
[ 20.250872] RIP: 0033:0x7962fdea9304
[ 20.250875] Code: 0f 11 4c 17 f0 c3 48 3b 15 f1 26 31 00 0f 83 e2 00 00 00 48 39 f7 72 0f 74 12 4c 8d 0c 16 4c 39 cf 0f 82 63 01 00 00 48 89 d1 <f3> a4 c3 80 fa 08 73 12 80 fa 04 73 1e 80 fa 01 77 26 72 05 0f b6
[ 20.250879] RSP: 002b:00007962f4db5468 EFLAGS: 00010206
[ 20.250883] RAX: 00003c8cc9d47008 RBX: 0000000000000000 RCX: 0000000000001b48
[ 20.250886] RDX: 0000000000002b40 RSI: 00003c8cc9551000 RDI: 00003c8cc9d48000
[ 20.250890] RBP: 00007962f4db5820 R08: 0000000000000000 R09: 00003c8cc9552b48
[ 20.250893] R10: 0000562dd1064d30 R11: 00003c8cc825b908 R12: 00003c8cc966d3c0
[ 20.250896] R13: 00003c8cc9e280c0 R14: 0000000000000000 R15: 0000000000000000
Signed-off-by: Alex Levin <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/intel/atom/sst/sst_pvt.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/atom/sst/sst_pvt.c b/sound/soc/intel/atom/sst/sst_pvt.c
index 00a37a09dc9b..dba0ca07ebf9 100644
--- a/sound/soc/intel/atom/sst/sst_pvt.c
+++ b/sound/soc/intel/atom/sst/sst_pvt.c
@@ -166,11 +166,11 @@ int sst_create_ipc_msg(struct ipc_post **arg, bool large)
{
struct ipc_post *msg;
- msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+ msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
if (!msg)
return -ENOMEM;
if (large) {
- msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_KERNEL);
+ msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC);
if (!msg->mailbox_data) {
kfree(msg);
return -ENOMEM;
--
2.20.1
From: Marcus Cooper <[email protected]>
[ Upstream commit f9927000cb35f250051f0f1878db12ee2626eea1 ]
Whilst testing the capture functionality of the i2s on the newer
SoCs it was noticed that the recording was somewhat distorted.
This was due to the offset not being set correctly on the receiver
side.
Signed-off-by: Marcus Cooper <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Acked-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/sunxi/sun4i-i2s.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 8162e107e50b..bc128e2a6096 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -460,6 +460,10 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG,
SUN8I_I2S_TX_CHAN_OFFSET_MASK,
SUN8I_I2S_TX_CHAN_OFFSET(offset));
+
+ regmap_update_bits(i2s->regmap, SUN8I_I2S_RX_CHAN_SEL_REG,
+ SUN8I_I2S_TX_CHAN_OFFSET_MASK,
+ SUN8I_I2S_TX_CHAN_OFFSET(offset));
}
regmap_field_write(i2s->field_fmt_mode, val);
--
2.20.1
From: Hans de Goede <[email protected]>
[ Upstream commit 401fee8195d401b2b94dee57383f627050724d5b ]
Commit 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).
The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
by that commit is made conditional in this commit and only enabled in
the quirk_entry structs in the asus-nb-wmi driver fixing the broken
display / backlight on various EeePC laptop models.
Cc: João Paulo Rechi Vita <[email protected]>
Fixes: 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/platform/x86/asus-nb-wmi.c | 8 ++++++++
drivers/platform/x86/asus-wmi.c | 2 +-
drivers/platform/x86/asus-wmi.h | 1 +
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index b6f2ff95c3ed..59f3a37a44d7 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -78,10 +78,12 @@ static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
static struct quirk_entry quirk_asus_unknown = {
.wapf = 0,
+ .wmi_backlight_set_devstate = true,
};
static struct quirk_entry quirk_asus_q500a = {
.i8042_filter = asus_q500a_i8042_filter,
+ .wmi_backlight_set_devstate = true,
};
/*
@@ -92,26 +94,32 @@ static struct quirk_entry quirk_asus_q500a = {
static struct quirk_entry quirk_asus_x55u = {
.wapf = 4,
.wmi_backlight_power = true,
+ .wmi_backlight_set_devstate = true,
.no_display_toggle = true,
};
static struct quirk_entry quirk_asus_wapf4 = {
.wapf = 4,
+ .wmi_backlight_set_devstate = true,
};
static struct quirk_entry quirk_asus_x200ca = {
.wapf = 2,
+ .wmi_backlight_set_devstate = true,
};
static struct quirk_entry quirk_asus_ux303ub = {
.wmi_backlight_native = true,
+ .wmi_backlight_set_devstate = true,
};
static struct quirk_entry quirk_asus_x550lb = {
+ .wmi_backlight_set_devstate = true,
.xusb2pr = 0x01D9,
};
static struct quirk_entry quirk_asus_forceals = {
+ .wmi_backlight_set_devstate = true,
.wmi_force_als_set = true,
};
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index ee1fa93708ec..a66e99500c12 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -2131,7 +2131,7 @@ static int asus_wmi_add(struct platform_device *pdev)
err = asus_wmi_backlight_init(asus);
if (err && err != -ENODEV)
goto fail_backlight;
- } else
+ } else if (asus->driver->quirks->wmi_backlight_set_devstate)
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
status = wmi_install_notify_handler(asus->driver->event_guid,
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 6c1311f4b04d..57a79bddb286 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -44,6 +44,7 @@ struct quirk_entry {
bool store_backlight_power;
bool wmi_backlight_power;
bool wmi_backlight_native;
+ bool wmi_backlight_set_devstate;
bool wmi_force_als_set;
int wapf;
/*
--
2.20.1
From: Kan Liang <[email protected]>
[ Upstream commit e35faeb64146f2015f2aec14b358ae508e4066db ]
Add the CPUID model numbers of Icelake (ICL) desktop and server
processors to the Intel family list.
[ Qiuxu: Sort the macros by model number. ]
Signed-off-by: Kan Liang <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Qiuxu Zhuo <[email protected]>
Cc: Rajneesh Bhardwaj <[email protected]>
Cc: [email protected]
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: x86-ml <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
---
arch/x86/include/asm/intel-family.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index 9f15384c504a..310118805f57 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -52,6 +52,9 @@
#define INTEL_FAM6_CANNONLAKE_MOBILE 0x66
+#define INTEL_FAM6_ICELAKE_X 0x6A
+#define INTEL_FAM6_ICELAKE_XEON_D 0x6C
+#define INTEL_FAM6_ICELAKE_DESKTOP 0x7D
#define INTEL_FAM6_ICELAKE_MOBILE 0x7E
/* "Small Core" Processors (Atom) */
--
2.20.1
From: Mathew King <[email protected]>
[ Upstream commit cb1921b17adbe6509538098ac431033378cd7165 ]
When a switch event, such as tablet mode/laptop mode or docked/undocked,
wakes a device make sure that the value of the swich is reported.
Without when a device is put in tablet mode from laptop mode when it is
suspended or vice versa the device will wake up but mode will be
incorrect.
Tested by suspending a device in laptop mode and putting it in tablet
mode, the device resumes and is in tablet mode. When suspending the
device in tablet mode and putting it in laptop mode the device resumes
and is in laptop mode.
Signed-off-by: Mathew King <[email protected]>
Reviewed-by: Jett Rink <[email protected]>
Reviewed-by: Mario Limonciello <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/platform/x86/intel-vbtn.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index 06cd7e818ed5..a0d0cecff55f 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -76,12 +76,24 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
struct platform_device *device = context;
struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
unsigned int val = !(event & 1); /* Even=press, Odd=release */
- const struct key_entry *ke_rel;
+ const struct key_entry *ke, *ke_rel;
bool autorelease;
if (priv->wakeup_mode) {
- if (sparse_keymap_entry_from_scancode(priv->input_dev, event)) {
+ ke = sparse_keymap_entry_from_scancode(priv->input_dev, event);
+ if (ke) {
pm_wakeup_hard_event(&device->dev);
+
+ /*
+ * Switch events like tablet mode will wake the device
+ * and report the new switch position to the input
+ * subsystem.
+ */
+ if (ke->type == KE_SW)
+ sparse_keymap_report_event(priv->input_dev,
+ event,
+ val,
+ 0);
return;
}
goto out_unknown;
--
2.20.1
From: Alexandre Belloni <[email protected]>
[ Upstream commit fbc318afadd6e7ae2252d6158cf7d0c5a2132f7d ]
Gadget drivers may queue request in interrupt context. This would lead to
a descriptor allocation in that context. In that case we would hit
BUG_ON(in_interrupt()) in __get_vm_area_node.
Also remove the unnecessary cast.
Acked-by: Sylvain Lemieux <[email protected]>
Tested-by: James Grant <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/usb/gadget/udc/lpc32xx_udc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index b0781771704e..eafc2a00c96a 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -922,8 +922,7 @@ static struct lpc32xx_usbd_dd_gad *udc_dd_alloc(struct lpc32xx_udc *udc)
dma_addr_t dma;
struct lpc32xx_usbd_dd_gad *dd;
- dd = (struct lpc32xx_usbd_dd_gad *) dma_pool_alloc(
- udc->dd_cache, (GFP_KERNEL | GFP_DMA), &dma);
+ dd = dma_pool_alloc(udc->dd_cache, GFP_ATOMIC | GFP_DMA, &dma);
if (dd)
dd->this_dma = dma;
--
2.20.1
From: Young Xiao <[email protected]>
[ Upstream commit 62fd0e0a24abeebe2c19fce49dd5716d9b62042d ]
There is no deallocation of fusb300->ep[i] elements, allocated at
fusb300_probe.
The patch adds deallocation of fusb300->ep array elements.
Signed-off-by: Young Xiao <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/usb/gadget/udc/fusb300_udc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index 263804d154a7..00e3f66836a9 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1342,12 +1342,15 @@ static const struct usb_gadget_ops fusb300_gadget_ops = {
static int fusb300_remove(struct platform_device *pdev)
{
struct fusb300 *fusb300 = platform_get_drvdata(pdev);
+ int i;
usb_del_gadget_udc(&fusb300->gadget);
iounmap(fusb300->reg);
free_irq(platform_get_irq(pdev, 0), fusb300);
fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
+ for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
+ kfree(fusb300->ep[i]);
kfree(fusb300);
return 0;
@@ -1491,6 +1494,8 @@ static int fusb300_probe(struct platform_device *pdev)
if (fusb300->ep0_req)
fusb300_free_request(&fusb300->ep[0]->ep,
fusb300->ep0_req);
+ for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
+ kfree(fusb300->ep[i]);
kfree(fusb300);
}
if (reg)
--
2.20.1
From: Andrzej Pietrasiewicz <[email protected]>
[ Upstream commit 066cfd0770aba8a9ac79b59d99530653885d919d ]
The patch 10209abe87f5ebfd482a00323f5236d6094d0865
usb: dwc2: gadget: Add scatter-gather mode
avoided a NULL pointer dereference (hs_ep->req == NULL) by
calling dwc2_gadget_fill_nonisoc_xfer_dma_one() directly instead of through
the dwc2_gadget_config_nonisoc_xfer_ddma() wrapper, which unconditionally
dereferenced the said pointer.
However, this was based on an incorrect assumption that in the context of
dwc2_hsotg_program_zlp() the pointer is always NULL, which is not the case.
The result were SB CV MSC tests failing starting from Test Case 6.
Instead, this patch reverts to calling the wrapper and adds a check for
the pointer being NULL inside the wrapper.
Fixes: 10209abe87f5 (usb: dwc2: gadget: Add scatter-gather mode)
Acked-by: Minas Harutyunyan <[email protected]>
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/usb/dwc2/gadget.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index a749de7604c6..c99ef9753930 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -833,19 +833,22 @@ static void dwc2_gadget_fill_nonisoc_xfer_ddma_one(struct dwc2_hsotg_ep *hs_ep,
* with corresponding information based on transfer data.
*/
static void dwc2_gadget_config_nonisoc_xfer_ddma(struct dwc2_hsotg_ep *hs_ep,
- struct usb_request *ureq,
- unsigned int offset,
+ dma_addr_t dma_buff,
unsigned int len)
{
+ struct usb_request *ureq = NULL;
struct dwc2_dma_desc *desc = hs_ep->desc_list;
struct scatterlist *sg;
int i;
u8 desc_count = 0;
+ if (hs_ep->req)
+ ureq = &hs_ep->req->req;
+
/* non-DMA sg buffer */
- if (!ureq->num_sgs) {
+ if (!ureq || !ureq->num_sgs) {
dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &desc,
- ureq->dma + offset, len, true);
+ dma_buff, len, true);
return;
}
@@ -1133,7 +1136,7 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg,
offset = ureq->actual;
/* Fill DDMA chain entries */
- dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq, offset,
+ dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq->dma + offset,
length);
/* write descriptor chain address to control register */
@@ -2026,12 +2029,13 @@ static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
dev_dbg(hsotg->dev, "Receiving zero-length packet on ep%d\n",
index);
if (using_desc_dma(hsotg)) {
+ /* Not specific buffer needed for ep0 ZLP */
+ dma_addr_t dma = hs_ep->desc_list_dma;
+
if (!index)
dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);
- /* Not specific buffer needed for ep0 ZLP */
- dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &hs_ep->desc_list,
- hs_ep->desc_list_dma, 0, true);
+ dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0);
} else {
dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
DXEPTSIZ_XFERSIZE(0),
--
2.20.1
From: swkhack <[email protected]>
[ Upstream commit 0874bb49bb21bf24deda853e8bf61b8325e24bcb ]
On a 64-bit machine the value of "vma->vm_end - vma->vm_start" may be
negative when using 32 bit ints and the "count >> PAGE_SHIFT"'s result
will be wrong. So change the local variable and return value to
unsigned long to fix the problem.
Link: http://lkml.kernel.org/r/[email protected]
Fixes: 0cf2f6f6dc60 ("mm: mlock: check against vma for actual mlock() size")
Signed-off-by: swkhack <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
mm/mlock.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/mlock.c b/mm/mlock.c
index 080f3b36415b..d614163f569b 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -636,11 +636,11 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
* is also counted.
* Return value: previously mlocked page counts
*/
-static int count_mm_mlocked_page_nr(struct mm_struct *mm,
+static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm,
unsigned long start, size_t len)
{
struct vm_area_struct *vma;
- int count = 0;
+ unsigned long count = 0;
if (mm == NULL)
mm = current->mm;
--
2.20.1
From: "H. Nikolaus Schaller" <[email protected]>
[ Upstream commit 3b00691cc46a4089368a008b30655a8343411715 ]
24 bit expanders use REG_ADDR_AI in combination with register addressing. This
conflicts with regmap which takes this bit as part of the register number,
i.e. a second cache entry is defined for accessed with REG_ADDR_AI being
set although on the chip it is the same register as with REG_ADDR_AI being
cleared.
The problem was introduced by
commit b32cecb46bdc ("gpio: pca953x: Extract the register address mangling to single function")
but only became visible by
commit 8b9f9d4dc511 ("regmap: verify if register is writeable before writing operations")
because before, the regmap size was effectively ignored and
pca953x_writeable_register() did know to ignore REG_ADDR_AI. Still, there
were two separate cache entries created.
Since the use of REG_ADDR_AI seems to be static we can work around this
issue by simply increasing the size of the regmap to cover the "virtual"
registers with REG_ADDR_AI being set. This only means that half of the
regmap buffer will be unused.
Reported-by: H. Nikolaus Schaller <[email protected]>
Suggested-by: Linus Walleij <[email protected]>
Signed-off-by: H. Nikolaus Schaller <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpio/gpio-pca953x.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 7e76830b3368..b6f10e56dfa0 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -306,7 +306,8 @@ static const struct regmap_config pca953x_i2c_regmap = {
.volatile_reg = pca953x_volatile_register,
.cache_type = REGCACHE_RBTREE,
- .max_register = 0x7f,
+ /* REVISIT: should be 0x7f but some 24 bit chips use REG_ADDR_AI */
+ .max_register = 0xff,
};
static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,
--
2.20.1
From: Vadim Pasternak <[email protected]>
[ Upstream commit 8c2eb7b6468ad4aa5600aed01aa0715f921a3f8b ]
Add devm_free_irq() call to mlxreg-hotplug remove() for clean release
of devices irq resource. Fix debugobjects warning triggered by rmmod
It prevents of use-after-free memory, related to
mlxreg_hotplug_work_handler.
Issue has been reported as debugobjects warning triggered by
'rmmod mlxtreg-hotplug' flow, while running kernel with
CONFIG_DEBUG_OBJECTS* options.
[ 2489.623551] ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler+0x0/0x7f0 [mlxreg_hotplug]
[ 2489.637097] WARNING: CPU: 5 PID: 3924 at lib/debugobjects.c:328 debug_print_object+0xfe/0x180
[ 2489.637165] RIP: 0010:debug_print_object+0xfe/0x180
?
[ 2489.637214] Call Trace:
[ 2489.637225] __debug_check_no_obj_freed+0x25e/0x320
[ 2489.637231] kfree+0x82/0x110
[ 2489.637238] release_nodes+0x33c/0x4e0
[ 2489.637242] ? devres_remove_group+0x1b0/0x1b0
[ 2489.637247] device_release_driver_internal+0x146/0x270
[ 2489.637251] driver_detach+0x73/0xe0
[ 2489.637254] bus_remove_driver+0xa1/0x170
[ 2489.637261] __x64_sys_delete_module+0x29e/0x320
[ 2489.637265] ? __ia32_sys_delete_module+0x320/0x320
[ 2489.637268] ? blkcg_exit_queue+0x20/0x20
[ 2489.637273] ? task_work_run+0x7d/0x100
[ 2489.637278] ? exit_to_usermode_loop+0x5b/0xf0
[ 2489.637281] do_syscall_64+0x73/0x160
[ 2489.637287] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2489.637290] RIP: 0033:0x7f95c3596fd7
The difference in release flow with and with no devm_free_irq is listed
below:
bus: 'platform': remove driver mlxreg-hotplug
mlxreg_hotplug_remove(start)
-> devm_free_irq (with new code)
mlxreg_hotplug_remove (end)
release_nodes (start)
mlxreg-hotplug: DEVRES REL devm_hwmon_release (8 bytes)
device: 'hwmon3': device_unregister
PM: Removing info for No Bus:hwmon3
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (88 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (6 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
mlxreg-hotplug: DEVRES REL devm_irq_release (16 bytes) (no new code)
mlxreg-hotplug: DEVRES REL devm_kzalloc_release (1376 bytes)
------------[ cut here ]------------ (no new code):
ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler
release_nodes(end)
driver: 'mlxreg-hotplug': driver_release
Fixes: 1f976f6978bf ("platform/x86: Move Mellanox platform hotplug driver to platform/mellanox")
Signed-off-by: Vadim Pasternak <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/platform/mellanox/mlxreg-hotplug.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/mellanox/mlxreg-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c
index 687ce6817d0d..f85a1b9d129b 100644
--- a/drivers/platform/mellanox/mlxreg-hotplug.c
+++ b/drivers/platform/mellanox/mlxreg-hotplug.c
@@ -694,6 +694,7 @@ static int mlxreg_hotplug_remove(struct platform_device *pdev)
/* Clean interrupts setup. */
mlxreg_hotplug_unset_irq(priv);
+ devm_free_irq(&pdev->dev, priv->irq, priv);
return 0;
}
--
2.20.1
From: Linus Walleij <[email protected]>
[ Upstream commit a0cac264a86fbf4d6cb201fbbb73c1d335e3248a ]
The devm_gpiod_request_gpiod() call will add "-gpios" to
any passed connection ID before looking it up.
I do not think the reset GPIO on this platform is named
"reset-gpios-gpios" but rather "reset-gpios" in the device
tree, so fix this up so that we get a proper reset GPIO
handle.
Also drop the inclusion of the legacy GPIO header.
Fixes: 0e8ce93bdceb ("i2c: pca-platform: add devicetree awareness")
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Chris Packham <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/i2c/busses/i2c-pca-platform.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index de3fe6e828cb..f50afa8e3cba 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -21,7 +21,6 @@
#include <linux/platform_device.h>
#include <linux/i2c-algo-pca.h>
#include <linux/platform_data/i2c-pca-platform.h>
-#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -173,7 +172,7 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
i2c->adap.dev.parent = &pdev->dev;
i2c->adap.dev.of_node = np;
- i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW);
+ i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(i2c->gpio))
return PTR_ERR(i2c->gpio);
--
2.20.1
From: Wei Li <[email protected]>
[ Upstream commit 04e03d9a616c19a47178eaca835358610e63a1dd ]
The mapper may be NULL when called from register_ftrace_function_probe()
with probe->data == NULL.
This issue can be reproduced as follow (it may be covered by compiler
optimization sometime):
/ # cat /sys/kernel/debug/tracing/set_ftrace_filter
#### all functions enabled ####
/ # echo foo_bar:dump > /sys/kernel/debug/tracing/set_ftrace_filter
[ 206.949100] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[ 206.952402] Mem abort info:
[ 206.952819] ESR = 0x96000006
[ 206.955326] Exception class = DABT (current EL), IL = 32 bits
[ 206.955844] SET = 0, FnV = 0
[ 206.956272] EA = 0, S1PTW = 0
[ 206.956652] Data abort info:
[ 206.957320] ISV = 0, ISS = 0x00000006
[ 206.959271] CM = 0, WnR = 0
[ 206.959938] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000419f3a000
[ 206.960483] [0000000000000000] pgd=0000000411a87003, pud=0000000411a83003, pmd=0000000000000000
[ 206.964953] Internal error: Oops: 96000006 [#1] SMP
[ 206.971122] Dumping ftrace buffer:
[ 206.973677] (ftrace buffer empty)
[ 206.975258] Modules linked in:
[ 206.976631] Process sh (pid: 281, stack limit = 0x(____ptrval____))
[ 206.978449] CPU: 10 PID: 281 Comm: sh Not tainted 5.2.0-rc1+ #17
[ 206.978955] Hardware name: linux,dummy-virt (DT)
[ 206.979883] pstate: 60000005 (nZCv daif -PAN -UAO)
[ 206.980499] pc : free_ftrace_func_mapper+0x2c/0x118
[ 206.980874] lr : ftrace_count_free+0x68/0x80
[ 206.982539] sp : ffff0000182f3ab0
[ 206.983102] x29: ffff0000182f3ab0 x28: ffff8003d0ec1700
[ 206.983632] x27: ffff000013054b40 x26: 0000000000000001
[ 206.984000] x25: ffff00001385f000 x24: 0000000000000000
[ 206.984394] x23: ffff000013453000 x22: ffff000013054000
[ 206.984775] x21: 0000000000000000 x20: ffff00001385fe28
[ 206.986575] x19: ffff000013872c30 x18: 0000000000000000
[ 206.987111] x17: 0000000000000000 x16: 0000000000000000
[ 206.987491] x15: ffffffffffffffb0 x14: 0000000000000000
[ 206.987850] x13: 000000000017430e x12: 0000000000000580
[ 206.988251] x11: 0000000000000000 x10: cccccccccccccccc
[ 206.988740] x9 : 0000000000000000 x8 : ffff000013917550
[ 206.990198] x7 : ffff000012fac2e8 x6 : ffff000012fac000
[ 206.991008] x5 : ffff0000103da588 x4 : 0000000000000001
[ 206.991395] x3 : 0000000000000001 x2 : ffff000013872a28
[ 206.991771] x1 : 0000000000000000 x0 : 0000000000000000
[ 206.992557] Call trace:
[ 206.993101] free_ftrace_func_mapper+0x2c/0x118
[ 206.994827] ftrace_count_free+0x68/0x80
[ 206.995238] release_probe+0xfc/0x1d0
[ 206.995555] register_ftrace_function_probe+0x4a8/0x868
[ 206.995923] ftrace_trace_probe_callback.isra.4+0xb8/0x180
[ 206.996330] ftrace_dump_callback+0x50/0x70
[ 206.996663] ftrace_regex_write.isra.29+0x290/0x3a8
[ 206.997157] ftrace_filter_write+0x44/0x60
[ 206.998971] __vfs_write+0x64/0xf0
[ 206.999285] vfs_write+0x14c/0x2f0
[ 206.999591] ksys_write+0xbc/0x1b0
[ 206.999888] __arm64_sys_write+0x3c/0x58
[ 207.000246] el0_svc_common.constprop.0+0x408/0x5f0
[ 207.000607] el0_svc_handler+0x144/0x1c8
[ 207.000916] el0_svc+0x8/0xc
[ 207.003699] Code: aa0003f8 a9025bf5 aa0103f5 f946ea80 (f9400303)
[ 207.008388] ---[ end trace 7b6d11b5f542bdf1 ]---
[ 207.010126] Kernel panic - not syncing: Fatal exception
[ 207.011322] SMP: stopping secondary CPUs
[ 207.013956] Dumping ftrace buffer:
[ 207.014595] (ftrace buffer empty)
[ 207.015632] Kernel Offset: disabled
[ 207.017187] CPU features: 0x002,20006008
[ 207.017985] Memory Limit: none
[ 207.019825] ---[ end Kernel panic - not syncing: Fatal exception ]---
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Wei Li <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/trace/ftrace.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 045e7f46a74a..2469d54b3e43 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4230,10 +4230,13 @@ void free_ftrace_func_mapper(struct ftrace_func_mapper *mapper,
struct ftrace_func_entry *entry;
struct ftrace_func_map *map;
struct hlist_head *hhd;
- int size = 1 << mapper->hash.size_bits;
- int i;
+ int size, i;
+
+ if (!mapper)
+ return;
if (free_func && mapper->hash.count) {
+ size = 1 << mapper->hash.size_bits;
for (i = 0; i < size; i++) {
hhd = &mapper->hash.buckets[i];
hlist_for_each_entry(entry, hhd, hlist) {
--
2.20.1
From: Joel Savitz <[email protected]>
[ Upstream commit d477f8c202d1f0d4791ab1263ca7657bbe5cf79e ]
In the case that a process is constrained by taskset(1) (i.e.
sched_setaffinity(2)) to a subset of available cpus, and all of those are
subsequently offlined, the scheduler will set tsk->cpus_allowed to
the current value of task_cs(tsk)->effective_cpus.
This is done via a call to do_set_cpus_allowed() in the context of
cpuset_cpus_allowed_fallback() made by the scheduler when this case is
detected. This is the only call made to cpuset_cpus_allowed_fallback()
in the latest mainline kernel.
However, this is not sane behavior.
I will demonstrate this on a system running the latest upstream kernel
with the following initial configuration:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffff
Cpus_allowed_list: 0-63
(Where cpus 32-63 are provided via smt.)
If we limit our current shell process to cpu2 only and then offline it
and reonline it:
# taskset -p 4 $$
pid 2272's current affinity mask: ffffffffffffffff
pid 2272's new affinity mask: 4
# echo off > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -3
[ 2195.866089] process 2272 (bash) no longer affine to cpu2
[ 2195.872700] IRQ 114: no longer affine to CPU2
[ 2195.879128] smpboot: CPU 2 is now offline
# echo on > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -1
[ 2617.043572] smpboot: Booting Node 0 Processor 2 APIC 0x4
We see that our current process now has an affinity mask containing
every cpu available on the system _except_ the one we originally
constrained it to:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffffb
Cpus_allowed_list: 0-1,3-63
This is not sane behavior, as the scheduler can now not only place the
process on previously forbidden cpus, it can't even schedule it on
the cpu it was originally constrained to!
Other cases result in even more exotic affinity masks. Take for instance
a process with an affinity mask containing only cpus provided by smt at
the moment that smt is toggled, in a configuration such as the following:
# taskset -p f000000000 $$
# grep -i cpu /proc/$$/status
Cpus_allowed: 000000f0,00000000
Cpus_allowed_list: 36-39
A double toggle of smt results in the following behavior:
# echo off > /sys/devices/system/cpu/smt/control
# echo on > /sys/devices/system/cpu/smt/control
# grep -i cpus /proc/$$/status
Cpus_allowed: ffffff00,ffffffff
Cpus_allowed_list: 0-31,40-63
This is even less sane than the previous case, as the new affinity mask
excludes all smt-provided cpus with ids less than those that were
previously in the affinity mask, as well as those that were actually in
the mask.
With this patch applied, both of these cases end in the following state:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,ffffffff
Cpus_allowed_list: 0-63
The original policy is discarded. Though not ideal, it is the simplest way
to restore sanity to this fallback case without reinventing the cpuset
wheel that rolls down the kernel just fine in cgroup v2. A user who wishes
for the previous affinity mask to be restored in this fallback case can use
that mechanism instead.
This patch modifies scheduler behavior by instead resetting the mask to
task_cs(tsk)->cpus_allowed by default, and cpu_possible mask in legacy
mode. I tested the cases above on both modes.
Note that the scheduler uses this fallback mechanism if and only if
_every_ other valid avenue has been traveled, and it is the last resort
before calling BUG().
Suggested-by: Waiman Long <[email protected]>
Suggested-by: Phil Auld <[email protected]>
Signed-off-by: Joel Savitz <[email protected]>
Acked-by: Phil Auld <[email protected]>
Acked-by: Waiman Long <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/cgroup/cpuset.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 4834c4214e9c..6c9deb2cc687 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -3255,10 +3255,23 @@ void cpuset_cpus_allowed(struct task_struct *tsk, struct cpumask *pmask)
spin_unlock_irqrestore(&callback_lock, flags);
}
+/**
+ * cpuset_cpus_allowed_fallback - final fallback before complete catastrophe.
+ * @tsk: pointer to task_struct with which the scheduler is struggling
+ *
+ * Description: In the case that the scheduler cannot find an allowed cpu in
+ * tsk->cpus_allowed, we fall back to task_cs(tsk)->cpus_allowed. In legacy
+ * mode however, this value is the same as task_cs(tsk)->effective_cpus,
+ * which will not contain a sane cpumask during cases such as cpu hotplugging.
+ * This is the absolute last resort for the scheduler and it is only used if
+ * _every_ other avenue has been traveled.
+ **/
+
void cpuset_cpus_allowed_fallback(struct task_struct *tsk)
{
rcu_read_lock();
- do_set_cpus_allowed(tsk, task_cs(tsk)->effective_cpus);
+ do_set_cpus_allowed(tsk, is_in_v2_mode() ?
+ task_cs(tsk)->cpus_allowed : cpu_possible_mask);
rcu_read_unlock();
/*
--
2.20.1
From: Vadim Pasternak <[email protected]>
[ Upstream commit 160da20b254dd4bfc5828f12c208fa831ad4be6c ]
Fix the issue found while running kernel with the option
CONFIG_DEBUG_TEST_DRIVER_REMOVE.
Driver 'mlx-platform' registers 'i2c_mlxcpld' device and then registers
few underlying 'i2c-mux-reg' devices:
priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", nr,
NULL, 0);
...
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
priv->pdev_mux[i] = platform_device_register_resndata(
&mlxplat_dev->dev,
"i2c-mux-reg", i, NULL,
0, &mlxplat_mux_data[i],
sizeof(mlxplat_mux_data[i]));
But actual parent of "i2c-mux-reg" device is priv->pdev_i2c->dev and
not mlxplat_dev->dev.
Patch fixes parent device parameter in a call to
platform_device_register_resndata() for "i2c-mux-reg".
It solves the race during initialization flow while 'i2c_mlxcpld.1' is
removing after probe, while 'i2c-mux-reg.0' is still in probing flow:
'i2c_mlxcpld.1' flow: probe -> remove -> probe.
'i2c-mux-reg.0' flow: probe -> ...
[ 12:621096] Registering platform device 'i2c_mlxcpld.1'. Parent at platform
[ 12:621117] device: 'i2c_mlxcpld.1': device_add
[ 12:621155] bus: 'platform': add device i2c_mlxcpld.1
[ 12:621384] Registering platform device 'i2c-mux-reg.0'. Parent at mlxplat
[ 12:621395] device: 'i2c-mux-reg.0': device_add
[ 12:621425] bus: 'platform': add device i2c-mux-reg.0
[ 12:621806] Registering platform device 'i2c-mux-reg.1'. Parent at mlxplat
[ 12:621828] device: 'i2c-mux-reg.1': device_add
[ 12:621892] bus: 'platform': add device i2c-mux-reg.1
[ 12:621906] bus: 'platform': add driver i2c_mlxcpld
[ 12:621996] bus: 'platform': driver_probe_device: matched device i2c_mlxcpld.1 with driver i2c_mlxcpld
[ 12:622003] bus: 'platform': really_probe: probing driver i2c_mlxcpld with device i2c_mlxcpld.1
[ 12:622100] i2c_mlxcpld i2c_mlxcpld.1: no default pinctrl state
[ 12:622293] device: 'i2c-1': device_add
[ 12:627280] bus: 'i2c': add device i2c-1
[ 12:627692] device: 'i2c-1': device_add
[ 12.629639] bus: 'platform': add driver i2c-mux-reg
[ 12.629718] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[ 12.629723] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[ 12.629818] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[ 12.629981] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral
[ 12.629986] platform i2c-mux-reg.0: Added to deferred list
[ 12.629992] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg
[ 12.629997] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1
[ 12.630091] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state
[ 12.630247] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral
[ 12.630252] platform i2c-mux-reg.1: Added to deferred list
[ 12.640892] devices_kset: Moving i2c-mux-reg.0 to end of list
[ 12.640900] platform i2c-mux-reg.0: Retrying from deferred list
[ 12.640911] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[ 12.640919] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[ 12.640999] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[ 12.641177] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral
[ 12.641187] platform i2c-mux-reg.0: Added to deferred list
[ 12.641198] devices_kset: Moving i2c-mux-reg.1 to end of list
[ 12.641219] platform i2c-mux-reg.1: Retrying from deferred list
[ 12.641237] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg
[ 12.641247] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1
[ 12.641331] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state
[ 12.641465] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral
[ 12.641469] platform i2c-mux-reg.1: Added to deferred list
[ 12.646427] device: 'i2c-1': device_add
[ 12.646647] bus: 'i2c': add device i2c-1
[ 12.647104] device: 'i2c-1': device_add
[ 12.669231] devices_kset: Moving i2c-mux-reg.0 to end of list
[ 12.669240] platform i2c-mux-reg.0: Retrying from deferred list
[ 12.669258] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[ 12.669263] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[ 12.669343] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[ 12.669585] device: 'i2c-2': device_add
[ 12.669795] bus: 'i2c': add device i2c-2
[ 12.670201] device: 'i2c-2': device_add
[ 12.671427] i2c i2c-1: Added multiplexed i2c bus 2
[ 12.671514] device: 'i2c-3': device_add
[ 12.671724] bus: 'i2c': add device i2c-3
[ 12.672136] device: 'i2c-3': device_add
[ 12.673378] i2c i2c-1: Added multiplexed i2c bus 3
[ 12.673472] device: 'i2c-4': device_add
[ 12.673676] bus: 'i2c': add device i2c-4
[ 12.674060] device: 'i2c-4': device_add
[ 12.675861] i2c i2c-1: Added multiplexed i2c bus 4
[ 12.675941] device: 'i2c-5': device_add
[ 12.676150] bus: 'i2c': add device i2c-5
[ 12.676550] device: 'i2c-5': device_add
[ 12.678103] i2c i2c-1: Added multiplexed i2c bus 5
[ 12.678193] device: 'i2c-6': device_add
[ 12.678395] bus: 'i2c': add device i2c-6
[ 12.678774] device: 'i2c-6': device_add
[ 12.679969] i2c i2c-1: Added multiplexed i2c bus 6
[ 12.680065] device: 'i2c-7': device_add
[ 12.680275] bus: 'i2c': add device i2c-7
[ 12.680913] device: 'i2c-7': device_add
[ 12.682506] i2c i2c-1: Added multiplexed i2c bus 7
[ 12.682600] device: 'i2c-8': device_add
[ 12.682808] bus: 'i2c': add device i2c-8
[ 12.683189] device: 'i2c-8': device_add
[ 12.683907] device: 'i2c-1': device_unregister
[ 12.683945] device: 'i2c-1': device_unregister
[ 12.684387] device: 'i2c-1': device_create_release
[ 12.684536] bus: 'i2c': remove device i2c-1
[ 12.686019] i2c i2c-8: Failed to create compatibility class link
[ 12.686086] ------------[ cut here ]------------
[ 12.686087] can't create symlink to mux device
[ 12.686224] Workqueue: events deferred_probe_work_func
[ 12.686135] WARNING: CPU: 7 PID: 436 at drivers/i2c/i2c-mux.c:416 i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux]
[ 12.686232] RIP: 0010:i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux]
[ 0x190/0x190 [i2c_mux]
[ 12.686300] ? i2c_mux_alloc+0xac/0x110 [i2c_mux]
[ 12.686306] ? i2c_mux_reg_set+0x200/0x200 [i2c_mux_reg]
[ 12.686313] i2c_mux_reg_probe+0x22c/0x731 [i2c_mux_reg]
[ 12.686322] ? i2c_mux_reg_deselect+0x60/0x60 [i2c_mux_reg]
[ 12.686346] platform_drv_probe+0xa8/0x110
[ 12.686351] really_probe+0x185/0x720
[ 12.686358] driver_probe_device+0xdf/0x1f0
...
[ 12.686522] i2c i2c-1: Added multiplexed i2c bus 8
[ 12.686621] device: 'i2c-9': device_add
[ 12.686626] kobject_add_internal failed for i2c-9 (error: -2 parent: i2c-1)
[ 12.694729] i2c-core: adapter 'i2c-1-mux (chan_id 8)': can't register device (-2)
[ 12.705726] i2c i2c-1: failed to add mux-adapter 8 as bus 9 (error=-2)
[ 12.714494] device: 'i2c-8': device_unregister
[ 12.714537] device: 'i2c-8': device_unregister
Fixes: 6613d18e9038 ("platform/x86: mlx-platform: Move module from arch/x86")
Signed-off-by: Vadim Pasternak <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/platform/x86/mlx-platform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 48fa7573e29b..0e5f073e51bc 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -1828,7 +1828,7 @@ static int __init mlxplat_init(void)
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
priv->pdev_mux[i] = platform_device_register_resndata(
- &mlxplat_dev->dev,
+ &priv->pdev_i2c->dev,
"i2c-mux-reg", i, NULL,
0, &mlxplat_mux_data[i],
sizeof(mlxplat_mux_data[i]));
--
2.20.1
From: Hans de Goede <[email protected]>
[ Upstream commit 15abc7110a77555d3bf72aaef46d1557db0a4ac5 ]
GPD has done it again, make a nice device (good), use way too generic
DMI strings (bad) and use a portrait screen rotated 90 degrees (ugly).
Because of the too generic DMI strings this entry is also doing bios-date
matching, so the gpd_pocket2 data struct may very well need to be updated
with some extra bios-dates in the future.
Changes in v2:
-Add one more known BIOS date to the list of BIOS dates
Cc: Jurgen Kramer <[email protected]>
Reported-by: Jurgen Kramer <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 6dab9102dd7b144e5723915438e0d6c473018cd0)
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/drm_panel_orientation_quirks.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 52e445bb1aa5..019f148d5a78 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -50,6 +50,14 @@ static const struct drm_dmi_panel_orientation_data gpd_pocket = {
.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
};
+static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
+ .width = 1200,
+ .height = 1920,
+ .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
+ "12/07/2018", NULL },
+ .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
+};
+
static const struct drm_dmi_panel_orientation_data gpd_win = {
.width = 720,
.height = 1280,
@@ -106,6 +114,14 @@ static const struct dmi_system_id orientation_data[] = {
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
},
.driver_data = (void *)&gpd_pocket,
+ }, { /* GPD Pocket 2 (generic strings, also match on bios date) */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+ },
+ .driver_data = (void *)&gpd_pocket2,
}, { /* GPD Win (same note on DMI match as GPD Pocket) */
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
--
2.20.1
From: Josh Poimboeuf <[email protected]>
[ Upstream commit 9f255b632bf12c4dd7fc31caee89aa991ef75176 ]
It's possible for livepatch and ftrace to be toggling a module's text
permissions at the same time, resulting in the following panic:
BUG: unable to handle page fault for address: ffffffffc005b1d9
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD 3ea0c067 P4D 3ea0c067 PUD 3ea0e067 PMD 3cc13067 PTE 3b8a1061
Oops: 0003 [#1] PREEMPT SMP PTI
CPU: 1 PID: 453 Comm: insmod Tainted: G O K 5.2.0-rc1-a188339ca5 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-20181126_142135-anatol 04/01/2014
RIP: 0010:apply_relocate_add+0xbe/0x14c
Code: fa 0b 74 21 48 83 fa 18 74 38 48 83 fa 0a 75 40 eb 08 48 83 38 00 74 33 eb 53 83 38 00 75 4e 89 08 89 c8 eb 0a 83 38 00 75 43 <89> 08 48 63 c1 48 39 c8 74 2e eb 48 83 38 00 75 32 48 29 c1 89 08
RSP: 0018:ffffb223c00dbb10 EFLAGS: 00010246
RAX: ffffffffc005b1d9 RBX: 0000000000000000 RCX: ffffffff8b200060
RDX: 000000000000000b RSI: 0000004b0000000b RDI: ffff96bdfcd33000
RBP: ffffb223c00dbb38 R08: ffffffffc005d040 R09: ffffffffc005c1f0
R10: ffff96bdfcd33c40 R11: ffff96bdfcd33b80 R12: 0000000000000018
R13: ffffffffc005c1f0 R14: ffffffffc005e708 R15: ffffffff8b2fbc74
FS: 00007f5f447beba8(0000) GS:ffff96bdff900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc005b1d9 CR3: 000000003cedc002 CR4: 0000000000360ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
klp_init_object_loaded+0x10f/0x219
? preempt_latency_start+0x21/0x57
klp_enable_patch+0x662/0x809
? virt_to_head_page+0x3a/0x3c
? kfree+0x8c/0x126
patch_init+0x2ed/0x1000 [livepatch_test02]
? 0xffffffffc0060000
do_one_initcall+0x9f/0x1c5
? kmem_cache_alloc_trace+0xc4/0xd4
? do_init_module+0x27/0x210
do_init_module+0x5f/0x210
load_module+0x1c41/0x2290
? fsnotify_path+0x3b/0x42
? strstarts+0x2b/0x2b
? kernel_read+0x58/0x65
__do_sys_finit_module+0x9f/0xc3
? __do_sys_finit_module+0x9f/0xc3
__x64_sys_finit_module+0x1a/0x1c
do_syscall_64+0x52/0x61
entry_SYSCALL_64_after_hwframe+0x44/0xa9
The above panic occurs when loading two modules at the same time with
ftrace enabled, where at least one of the modules is a livepatch module:
CPU0 CPU1
klp_enable_patch()
klp_init_object_loaded()
module_disable_ro()
ftrace_module_enable()
ftrace_arch_code_modify_post_process()
set_all_modules_text_ro()
klp_write_object_relocations()
apply_relocate_add()
*patches read-only code* - BOOM
A similar race exists when toggling ftrace while loading a livepatch
module.
Fix it by ensuring that the livepatch and ftrace code patching
operations -- and their respective permissions changes -- are protected
by the text_mutex.
Link: http://lkml.kernel.org/r/ab43d56ab909469ac5d2520c5d944ad6d4abd476.1560474114.git.jpoimboe@redhat.com
Reported-by: Johannes Erdfelt <[email protected]>
Fixes: 444d13ff10fb ("modules: add ro_after_init support")
Acked-by: Jessica Yu <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/livepatch/core.c | 6 ++++++
kernel/trace/ftrace.c | 10 +++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index eb0ee10a1981..05d5b0afc864 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -30,6 +30,7 @@
#include <linux/elf.h>
#include <linux/moduleloader.h>
#include <linux/completion.h>
+#include <linux/memory.h>
#include <asm/cacheflush.h>
#include "core.h"
#include "patch.h"
@@ -746,16 +747,21 @@ static int klp_init_object_loaded(struct klp_patch *patch,
struct klp_func *func;
int ret;
+ mutex_lock(&text_mutex);
+
module_disable_ro(patch->mod);
ret = klp_write_object_relocations(patch->mod, obj);
if (ret) {
module_enable_ro(patch->mod, true);
+ mutex_unlock(&text_mutex);
return ret;
}
arch_klp_init_object_loaded(patch, obj);
module_enable_ro(patch->mod, true);
+ mutex_unlock(&text_mutex);
+
klp_for_each_func(obj, func) {
ret = klp_find_object_symbol(obj->name, func->old_name,
func->old_sympos,
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 538f0b1c7ea2..045e7f46a74a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -34,6 +34,7 @@
#include <linux/hash.h>
#include <linux/rcupdate.h>
#include <linux/kprobes.h>
+#include <linux/memory.h>
#include <trace/events/sched.h>
@@ -2614,10 +2615,12 @@ static void ftrace_run_update_code(int command)
{
int ret;
+ mutex_lock(&text_mutex);
+
ret = ftrace_arch_code_modify_prepare();
FTRACE_WARN_ON(ret);
if (ret)
- return;
+ goto out_unlock;
/*
* By default we use stop_machine() to modify the code.
@@ -2629,6 +2632,9 @@ static void ftrace_run_update_code(int command)
ret = ftrace_arch_code_modify_post_process();
FTRACE_WARN_ON(ret);
+
+out_unlock:
+ mutex_unlock(&text_mutex);
}
static void ftrace_run_modify_code(struct ftrace_ops *ops, int command,
@@ -5779,6 +5785,7 @@ void ftrace_module_enable(struct module *mod)
struct ftrace_page *pg;
mutex_lock(&ftrace_lock);
+ mutex_lock(&text_mutex);
if (ftrace_disabled)
goto out_unlock;
@@ -5840,6 +5847,7 @@ void ftrace_module_enable(struct module *mod)
ftrace_arch_code_modify_post_process();
out_unlock:
+ mutex_unlock(&text_mutex);
mutex_unlock(&ftrace_lock);
process_cached_mods(mod->name);
--
2.20.1
From: Pierre-Louis Bossart <[email protected]>
[ Upstream commit 9bbc799318a34061703f2a980e2b6df7fc6760f0 ]
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: f403906da05cd ("ASoC: Intel: cht_bsw_rt5672: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/intel/boards/cht_bsw_rt5672.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/cht_bsw_rt5672.c b/sound/soc/intel/boards/cht_bsw_rt5672.c
index 3d5a2b3a06f0..87ce3857376d 100644
--- a/sound/soc/intel/boards/cht_bsw_rt5672.c
+++ b/sound/soc/intel/boards/cht_bsw_rt5672.c
@@ -425,6 +425,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
}
/* override plaform name, if required */
+ snd_soc_card_cht.dev = &pdev->dev;
platform_name = mach->mach_params.platform;
ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
@@ -442,7 +443,6 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
/* register the soc card */
- snd_soc_card_cht.dev = &pdev->dev;
ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
if (ret_val) {
dev_err(&pdev->dev,
--
2.20.1
From: Manuel Traut <[email protected]>
[ Upstream commit c04e32e911653442fc834be6e92e072aeebe01a1 ]
At least for ARM64 kernels compiled with the crosstoolchain from
Debian/stretch or with the toolchain from kernel.org the line number is
not decoded correctly by 'decode_stacktrace.sh':
$ echo "[ 136.513051] f1+0x0/0xc [kcrash]" | \
CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- \
./scripts/decode_stacktrace.sh /scratch/linux-arm64/vmlinux \
/scratch/linux-arm64 \
/nfs/debian/lib/modules/4.20.0-devel
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:68) kcrash
If addr2line from the toolchain is used the decoded line number is correct:
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:57) kcrash
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Manuel Traut <[email protected]>
Acked-by: Konstantin Khlebnikov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
scripts/decode_stacktrace.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index bcdd45df3f51..a7a36209a193 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -73,7 +73,7 @@ parse_symbol() {
if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then
local code=${cache[$module,$address]}
else
- local code=$(addr2line -i -e "$objfile" "$address")
+ local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address")
cache[$module,$address]=$code
fi
--
2.20.1
From: Vasily Gorbik <[email protected]>
[ Upstream commit cbdaeaf050b730ea02e9ab4ff844ce54d85dbe1d ]
Selecting HAVE_NOP_MCOUNT enables -mnop-mcount (if gcc supports it)
and sets CC_USING_NOP_MCOUNT. Reuse __is_defined (which is suitable for
testing CC_USING_* defines) to avoid conditional compilation and fix
the following gcc 9 warning on s390:
kernel/trace/ftrace.c:2514:1: warning: ‘ftrace_code_disable’ defined
but not used [-Wunused-function]
Link: http://lkml.kernel.org/r/patch.git-1a82d13f33ac.your-ad-here.call-01559732716-ext-6629@work.hours
Fixes: 2f4df0017baed ("tracing: Add -mcount-nop option support")
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
kernel/trace/ftrace.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index b920358dd8f7..538f0b1c7ea2 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2939,14 +2939,13 @@ static int ftrace_update_code(struct module *mod, struct ftrace_page *new_pgs)
p = &pg->records[i];
p->flags = rec_flags;
-#ifndef CC_USING_NOP_MCOUNT
/*
* Do the initial record conversion from mcount jump
* to the NOP instructions.
*/
- if (!ftrace_code_disable(mod, p))
+ if (!__is_defined(CC_USING_NOP_MCOUNT) &&
+ !ftrace_code_disable(mod, p))
break;
-#endif
update_cnt++;
}
--
2.20.1
From: Don Brace <[email protected]>
[ Upstream commit 625d7d3518875c4d303c652a198feaa13d9f52d9 ]
- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_LAST_SG for
the last s/g element.
- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_CHAIN when
chaining.
Reviewed-by: Bader Ali - Saleh <[email protected]>
Reviewed-by: Scott Teel <[email protected]>
Reviewed-by: Matt Perricone <[email protected]>
Signed-off-by: Don Brace <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/scsi/hpsa.c | 7 ++++++-
drivers/scsi/hpsa_cmd.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index f044e7d10d63..2d181e5e65ff 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4925,7 +4925,7 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h,
curr_sg->reserved[0] = 0;
curr_sg->reserved[1] = 0;
curr_sg->reserved[2] = 0;
- curr_sg->chain_indicator = 0x80;
+ curr_sg->chain_indicator = IOACCEL2_CHAIN;
curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex];
}
@@ -4942,6 +4942,11 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h,
curr_sg++;
}
+ /*
+ * Set the last s/g element bit
+ */
+ (curr_sg - 1)->chain_indicator = IOACCEL2_LAST_SG;
+
switch (cmd->sc_data_direction) {
case DMA_TO_DEVICE:
cp->direction &= ~IOACCEL2_DIRECTION_MASK;
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 21a726e2eec6..f6afca4b2319 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -517,6 +517,7 @@ struct ioaccel2_sg_element {
u8 reserved[3];
u8 chain_indicator;
#define IOACCEL2_CHAIN 0x80
+#define IOACCEL2_LAST_SG 0x40
};
/*
--
2.20.1
From: Lu Baolu <[email protected]>
[ Upstream commit 66d78ad316b0e1ca5ae19663468554e2c0e31c26 ]
Set the page walk snoop to the right bit, otherwise the domain
id field will be overlapped.
Reported-by: Dave Jiang <[email protected]>
Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface")
Signed-off-by: Lu Baolu <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/iommu/intel-pasid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c
index 03b12d2ee213..fdf05c45d516 100644
--- a/drivers/iommu/intel-pasid.c
+++ b/drivers/iommu/intel-pasid.c
@@ -387,7 +387,7 @@ static inline void pasid_set_present(struct pasid_entry *pe)
*/
static inline void pasid_set_page_snoop(struct pasid_entry *pe, bool value)
{
- pasid_set_bits(&pe->val[1], 1 << 23, value);
+ pasid_set_bits(&pe->val[1], 1 << 23, value << 23);
}
/*
--
2.20.1
From: Amadeusz Sławiński <[email protected]>
[ Upstream commit 6d647b736a6b1cbf2f8deab0e6a94c34a6ea9d60 ]
During the integration of HDaudio support, we changed the way in which
we get hdev in snd_hdac_ext_bus_device_init() to use one preallocated
with devm_kzalloc(), however it still left kfree(hdev) in
snd_hdac_ext_bus_device_exit(). It leads to oopses when trying to
rmmod and modprobe. Fix it, by just removing kfree call.
SOF also uses some of the snd_hdac_ functions for HDAudio support but
allocated the memory with kzalloc. A matching fix is provided
separately to align all users of the snd_hdac_ library.
Fixes: 6298542fa33b ("ALSA: hdac: remove memory allocation from snd_hdac_ext_bus_device_init")
Reviewed-by: Takashi Iwai <[email protected]>
Signed-off-by: Amadeusz Sławiński <[email protected]>
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/hda/ext/hdac_ext_bus.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index ec7715c6b0c0..c147ebe542da 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -172,7 +172,6 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
{
snd_hdac_device_exit(hdev);
- kfree(hdev);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
--
2.20.1
From: Will Deacon <[email protected]>
[ Upstream commit 01d57485fcdb9f9101a10a18e32d5f8b023cab86 ]
Since commit 3d65b6bbc01e ("arm64: tlbi: Set MAX_TLBI_OPS to
PTRS_PER_PTE"), we resort to per-ASID invalidation when attempting to
perform more than PTRS_PER_PTE invalidation instructions in a single
call to __flush_tlb_range(). Whilst this is beneficial, the mmu_gather
code does not ensure that the end address of the range is rounded-up
to the stride when freeing intermediate page tables in pXX_free_tlb(),
which defeats our range checking.
Align the bounds passed into __flush_tlb_range().
Cc: Catalin Marinas <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Reported-by: Hanjun Guo <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
arch/arm64/include/asm/tlbflush.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index 3a1870228946..dff8f9ea5754 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -195,6 +195,9 @@ static inline void __flush_tlb_range(struct vm_area_struct *vma,
unsigned long asid = ASID(vma->vm_mm);
unsigned long addr;
+ start = round_down(start, stride);
+ end = round_up(end, stride);
+
if ((end - start) >= (MAX_TLBI_OPS * stride)) {
flush_tlb_mm(vma->vm_mm);
return;
--
2.20.1
From: Viorel Suman <[email protected]>
[ Upstream commit a8dee20d792432740509237943700fbcfc230bad ]
AK4458 is probed successfully even if AK4458 is not present - this
is caused by probe function returning no error on i2c access failure.
Return an error on probe if i2c access has failed.
Signed-off-by: Shengjiu Wang <[email protected]>
Signed-off-by: Viorel Suman <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/codecs/ak4458.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c
index eab7c76cfcd9..4c5c3ec92609 100644
--- a/sound/soc/codecs/ak4458.c
+++ b/sound/soc/codecs/ak4458.c
@@ -536,9 +536,10 @@ static void ak4458_power_on(struct ak4458_priv *ak4458)
}
}
-static void ak4458_init(struct snd_soc_component *component)
+static int ak4458_init(struct snd_soc_component *component)
{
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
+ int ret;
/* External Mute ON */
if (ak4458->mute_gpiod)
@@ -546,21 +547,21 @@ static void ak4458_init(struct snd_soc_component *component)
ak4458_power_on(ak4458);
- snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
+ ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
0x80, 0x80); /* ACKS bit = 1; 10000000 */
+ if (ret < 0)
+ return ret;
- ak4458_rstn_control(component, 1);
+ return ak4458_rstn_control(component, 1);
}
static int ak4458_probe(struct snd_soc_component *component)
{
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
- ak4458_init(component);
-
ak4458->fs = 48000;
- return 0;
+ return ak4458_init(component);
}
static void ak4458_remove(struct snd_soc_component *component)
--
2.20.1
From: Hans de Goede <[email protected]>
[ Upstream commit 652b8b086538c8a10de5aa5cbdaef79333b46358 ]
GPD has done it again, make a nice device (good), use way too generic
DMI strings (bad) and use a portrait screen rotated 90 degrees (ugly).
Because of the too generic DMI strings this entry is also doing bios-date
matching, so the gpd_micropc data struct may very well need to be updated
with some extra bios-dates in the future.
Acked-by: Maxime Ripard <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit f2f2bb60d998abde10de7e483ef9e17639892450)
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/gpu/drm/drm_panel_orientation_quirks.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 019f148d5a78..dd982563304d 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -42,6 +42,14 @@ static const struct drm_dmi_panel_orientation_data asus_t100ha = {
.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
};
+static const struct drm_dmi_panel_orientation_data gpd_micropc = {
+ .width = 720,
+ .height = 1280,
+ .bios_dates = (const char * const []){ "04/26/2019",
+ NULL },
+ .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
+};
+
static const struct drm_dmi_panel_orientation_data gpd_pocket = {
.width = 1200,
.height = 1920,
@@ -101,6 +109,14 @@ static const struct dmi_system_id orientation_data[] = {
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
},
.driver_data = (void *)&asus_t100ha,
+ }, { /* GPD MicroPC (generic strings, also match on bios date) */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+ },
+ .driver_data = (void *)&gpd_micropc,
}, { /*
* GPD Pocket, note that the the DMI data is less generic then
* it seems, devices with a board-vendor of "AMI Corporation"
--
2.20.1
From: Georgii Staroselskii <[email protected]>
[ Upstream commit 1f2675f6655838aaf910f911fd0abc821e3ff3df ]
Allwinner DAC seems to have a delay in the Speaker audio routing. When
playing a sound for the first time, the sound gets chopped. On a second
play the sound is played correctly. After some time (~5s) the issue gets
back.
This commit seems to be fixing the same issue as bf14da7 but
for another codepath.
This is the DTS that was used to debug the problem.
&codec {
allwinner,pa-gpios = <&r_pio 0 11 GPIO_ACTIVE_HIGH>; /* PL11 */
allwinner,audio-routing =
"Speaker", "LINEOUT";
status = "okay";
}
Signed-off-by: Georgii Staroselskii <[email protected]>
Reviewed-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/sunxi/sun4i-codec.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 15d08e343b47..28d2f7713f8d 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1329,6 +1329,15 @@ static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
gpiod_set_value_cansleep(scodec->gpio_pa,
!!SND_SOC_DAPM_EVENT_ON(event));
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ /*
+ * Need a delay to wait for DAC to push the data. 700ms seems
+ * to be the best compromise not to feel this delay while
+ * playing a sound.
+ */
+ msleep(700);
+ }
+
return 0;
}
--
2.20.1
From: Kuninori Morimoto <[email protected]>
[ Upstream commit f7c4842abfa1a219554a3ffd8c317e8fdd979bec ]
snd_soc_dai_link_event() is updating snd_soc_dai :: active,
but it is unbalance.
It counts up if it has startup callback.
case SND_SOC_DAPM_PRE_PMU:
...
snd_soc_dapm_widget_for_each_source_path(w, path) {
...
if (source->driver->ops->startup) {
...
=> source->active++;
}
...
}
...
But, always counts down
case SND_SOC_DAPM_PRE_PMD:
...
snd_soc_dapm_widget_for_each_source_path(w, path) {
...
=> source->active--;
...
}
This patch always counts up when SND_SOC_DAPM_PRE_PMD.
Signed-off-by: Kuninori Morimoto <[email protected]>
Reviewed-by: Vinod Koul <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
sound/soc/soc-dapm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5d9d7678e4fa..1ee67716d558 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3831,8 +3831,8 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
ret);
goto out;
}
- source->active++;
}
+ source->active++;
ret = soc_dai_hw_params(&substream, params, source);
if (ret < 0)
goto out;
@@ -3853,8 +3853,8 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
ret);
goto out;
}
- sink->active++;
}
+ sink->active++;
ret = soc_dai_hw_params(&substream, params, sink);
if (ret < 0)
goto out;
--
2.20.1
Hi Sasha,
On Tue, Jun 25, 2019 at 11:40:25PM -0400, Sasha Levin wrote:
> From: Dave Jiang <[email protected]>
>
> [ Upstream commit 7560cc3ca7d9d11555f80c830544e463fcdb28b8 ]
This commit was reverted upstream, please drop it from your stable
queue. It caused new lockdep issues.
Regards,
Joerg
On Tue, Jun 25, 2019 at 11:40:23PM -0400, Sasha Levin wrote:
> From: Kuninori Morimoto <[email protected]>
>
> [ Upstream commit f7c4842abfa1a219554a3ffd8c317e8fdd979bec ]
>
> snd_soc_dai_link_event() is updating snd_soc_dai :: active,
> but it is unbalance.
> It counts up if it has startup callback.
Are you *sure* this doesn't have dependencies?
On Tue, Jun 25, 2019 at 11:40:27PM -0400, Sasha Levin wrote:
> From: Georgii Staroselskii <[email protected]>
>
> [ Upstream commit 1f2675f6655838aaf910f911fd0abc821e3ff3df ]
>
> Allwinner DAC seems to have a delay in the Speaker audio routing. When
> playing a sound for the first time, the sound gets chopped. On a second
> play the sound is played correctly. After some time (~5s) the issue gets
> back.
This is inserting a big delay in the startup and might disrupt some
production system.
On Tue, Jun 25, 2019 at 11:40:24PM -0400, Sasha Levin wrote:
> From: Ranjani Sridharan <[email protected]>
>
> [ Upstream commit 34ac3c3eb8f0c07252ceddf0a22dd240e5c91ccb ]
>
> Removing link components results in topology unloading. So,
> acquire the client_mutex before removing components in
> soc_remove_link_components. This will prevent the lockdep warning
> seen when dai links are removed during topology removal.
There's additional fixes for this IIRC.
On Tue, Jun 25, 2019 at 11:40:54PM -0400, Sasha Levin wrote:
> From: Ranjani Sridharan <[email protected]>
>
> [ Upstream commit 495f926c68ddb905a7a0192963096138c6a934e1 ]
>
> Move the client_mutex lock to snd_soc_unbind_card() before
> removing link components. This prevents the deadlock
> in the error path in snd_soc_instantiate_card().
Again, are you sure there's no dependencies?
On Tue, Jun 25, 2019 at 11:40:47PM -0400, Sasha Levin wrote:
> From: Tzung-Bi Shih <[email protected]>
>
> [ Upstream commit 70fc53734e71ce51f46dfcfd1a1c319e1cfe080c ]
>
> Kernel crashes when an ASoC component rebinding.
>
> The dai_link->platforms has been reset to NULL by soc_cleanup_platform()
> in soc_cleanup_card_resources() when un-registering component. However,
> it has no chance to re-allocate the dai_link->platforms when registering
> the component again.
Again, are you sure there's no dependencies?
On Wed, Jun 26, 2019 at 11:03:15AM +0100, Mark Brown wrote:
>On Tue, Jun 25, 2019 at 11:40:23PM -0400, Sasha Levin wrote:
>> From: Kuninori Morimoto <[email protected]>
>>
>> [ Upstream commit f7c4842abfa1a219554a3ffd8c317e8fdd979bec ]
>>
>> snd_soc_dai_link_event() is updating snd_soc_dai :: active,
>> but it is unbalance.
>> It counts up if it has startup callback.
>
>Are you *sure* this doesn't have dependencies?
The actual code seems to correspond with the issue described in the
commit message, so I'd think not.
I can remove this patch if you're not confident about it.
--
Thanks,
Sasha
On Wed, Jun 26, 2019 at 11:39:12AM +0100, Mark Brown wrote:
>On Tue, Jun 25, 2019 at 11:40:54PM -0400, Sasha Levin wrote:
>> From: Ranjani Sridharan <[email protected]>
>>
>> [ Upstream commit 495f926c68ddb905a7a0192963096138c6a934e1 ]
>>
>> Move the client_mutex lock to snd_soc_unbind_card() before
>> removing link components. This prevents the deadlock
>> in the error path in snd_soc_instantiate_card().
>
>Again, are you sure there's no dependencies?
I'm taking the patch it depends on (also a fix) as part of this AUTOSEL
branch.
--
Thanks,
Sasha
On Wed, Jun 26, 2019 at 11:37:01AM +0100, Mark Brown wrote:
>On Tue, Jun 25, 2019 at 11:40:24PM -0400, Sasha Levin wrote:
>> From: Ranjani Sridharan <[email protected]>
>>
>> [ Upstream commit 34ac3c3eb8f0c07252ceddf0a22dd240e5c91ccb ]
>>
>> Removing link components results in topology unloading. So,
>> acquire the client_mutex before removing components in
>> soc_remove_link_components. This will prevent the lockdep warning
>> seen when dai links are removed during topology removal.
>
>There's additional fixes for this IIRC.
The fix is part of this branch, you commented on it as well.
--
Thanks,
Sasha
On Wed, Jun 26, 2019 at 08:56:06AM +0200, Joerg Roedel wrote:
>Hi Sasha,
>
>On Tue, Jun 25, 2019 at 11:40:25PM -0400, Sasha Levin wrote:
>> From: Dave Jiang <[email protected]>
>>
>> [ Upstream commit 7560cc3ca7d9d11555f80c830544e463fcdb28b8 ]
>
>This commit was reverted upstream, please drop it from your stable
>queue. It caused new lockdep issues.
I've dropped it, thank you.
--
Thanks,
Sasha
On Wed, Jun 26, 2019 at 08:20:59PM -0400, Sasha Levin wrote:
> On Wed, Jun 26, 2019 at 11:03:15AM +0100, Mark Brown wrote:
> > On Tue, Jun 25, 2019 at 11:40:23PM -0400, Sasha Levin wrote:
> > > [ Upstream commit f7c4842abfa1a219554a3ffd8c317e8fdd979bec ]
> > > snd_soc_dai_link_event() is updating snd_soc_dai :: active,
> > > but it is unbalance.
> > > It counts up if it has startup callback.
> > Are you *sure* this doesn't have dependencies?
> The actual code seems to correspond with the issue described in the
> commit message, so I'd think not.
> I can remove this patch if you're not confident about it.
I'm not entirely, no.
On Mon, Jul 01, 2019 at 05:18:01PM +0100, Mark Brown wrote:
>On Wed, Jun 26, 2019 at 08:20:59PM -0400, Sasha Levin wrote:
>> On Wed, Jun 26, 2019 at 11:03:15AM +0100, Mark Brown wrote:
>> > On Tue, Jun 25, 2019 at 11:40:23PM -0400, Sasha Levin wrote:
>
>> > > [ Upstream commit f7c4842abfa1a219554a3ffd8c317e8fdd979bec ]
>
>> > > snd_soc_dai_link_event() is updating snd_soc_dai :: active,
>> > > but it is unbalance.
>> > > It counts up if it has startup callback.
>
>> > Are you *sure* this doesn't have dependencies?
>
>> The actual code seems to correspond with the issue described in the
>> commit message, so I'd think not.
>
>> I can remove this patch if you're not confident about it.
>
>I'm not entirely, no.
Dropped it, thanks.
--
Thanks,
Sasha
On Wed, Jun 26, 2019 at 11:37:41AM +0100, Mark Brown wrote:
>On Tue, Jun 25, 2019 at 11:40:27PM -0400, Sasha Levin wrote:
>> From: Georgii Staroselskii <[email protected]>
>>
>> [ Upstream commit 1f2675f6655838aaf910f911fd0abc821e3ff3df ]
>>
>> Allwinner DAC seems to have a delay in the Speaker audio routing. When
>> playing a sound for the first time, the sound gets chopped. On a second
>> play the sound is played correctly. After some time (~5s) the issue gets
>> back.
>
>This is inserting a big delay in the startup and might disrupt some
>production system.
But that would be a problem upstream as well, no?
--
Thanks,
Sasha
On Wed, Jul 03, 2019 at 10:20:47AM -0400, Sasha Levin wrote:
> On Wed, Jun 26, 2019 at 11:37:41AM +0100, Mark Brown wrote:
> > On Tue, Jun 25, 2019 at 11:40:27PM -0400, Sasha Levin wrote:
> > > Allwinner DAC seems to have a delay in the Speaker audio routing. When
> > > playing a sound for the first time, the sound gets chopped. On a second
> > > play the sound is played correctly. After some time (~5s) the issue gets
> > > back.
> > This is inserting a big delay in the startup and might disrupt some
> > production system.
> But that would be a problem upstream as well, no?
There's a difference between a problem that gets introduced in normal
development tracking upstream and something that gets dropped into a
stable release, we don't want people deciding that stable is something
they can't just take en masse without really looking at what's in there.
On Wed, Jul 03, 2019 at 06:07:44PM +0100, Mark Brown wrote:
>On Wed, Jul 03, 2019 at 10:20:47AM -0400, Sasha Levin wrote:
>> On Wed, Jun 26, 2019 at 11:37:41AM +0100, Mark Brown wrote:
>> > On Tue, Jun 25, 2019 at 11:40:27PM -0400, Sasha Levin wrote:
>
>> > > Allwinner DAC seems to have a delay in the Speaker audio routing. When
>> > > playing a sound for the first time, the sound gets chopped. On a second
>> > > play the sound is played correctly. After some time (~5s) the issue gets
>> > > back.
>
>> > This is inserting a big delay in the startup and might disrupt some
>> > production system.
>
>> But that would be a problem upstream as well, no?
>
>There's a difference between a problem that gets introduced in normal
>development tracking upstream and something that gets dropped into a
>stable release, we don't want people deciding that stable is something
>they can't just take en masse without really looking at what's in there.
Sure, but I don't see any work upstream on trying to correct this?
These sort of things are a reason why users stick with the same kernel
for years, which is what we'd like to avoid.
I'll drop this for now...
--
Thanks,
Sasha
On Wed, Jul 03, 2019 at 02:10:05PM -0400, Sasha Levin wrote:
> Sure, but I don't see any work upstream on trying to correct this?
There's nothing to do to correct it, it's a normal thing that
might happen in an audio system. Probably users on the old
kernel who are bothered by it either did a local kernel change or
inserted a delay at the application level. Correcting it again
separately will double the delay, the problem is changing it
affecting system integrations.
> These sort of things are a reason why users stick with the same kernel
> for years, which is what we'd like to avoid.
Domain specific knowledge can be helpful...