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Date:   Tue, 11 May 2021 09:14:34 -0600
From:   Mathieu Poirier <mathieu.poirier@linaro.org>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc:     linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
        linux-remoteproc@vger.kernel.org
Subject: Re: [PATCH v3 1/1] kernel.h: Split out panic and oops helpers
Message-ID: <20210511151433.GB124470@xps15>
References: <20210511074137.33666-1-andriy.shevchenko@linux.intel.com>
MIME-Version: 1.0
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In-Reply-To: <20210511074137.33666-1-andriy.shevchenko@linux.intel.com>
Precedence: bulk

On Tue, May 11, 2021 at 10:41:37AM +0300, Andy Shevchenko wrote:
> kernel.h is being used as a dump for all kinds of stuff for a long time.
> Here is the attempt to start cleaning it up by splitting out panic and
> oops helpers.
> 
> There are several purposes of doing this:
> - dropping dependency in bug.h
> - dropping a loop by moving out panic_notifier.h
> - unload kernel.h from something which has its own domain
> 
> At the same time convert users tree-wide to use new headers, although
> for the time being include new header back to kernel.h to avoid twisted
> indirected includes for existing users.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Acked-by: Mike Rapoport <rppt@linux.ibm.com>
> Acked-by: Corey Minyard <cminyard@mvista.com>
> Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
> Acked-by: Arnd Bergmann <arnd@arndb.de>
> Acked-by: Kees Cook <keescook@chromium.org>
> Acked-by: Wei Liu <wei.liu@kernel.org>
> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> Co-developed-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Acked-by: Sebastian Reichel <sre@kernel.org>
> Acked-by: Luis Chamberlain <mcgrof@kernel.org>
> Acked-by: Stephen Boyd <sboyd@kernel.org>
> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> Acked-by: Helge Deller <deller@gmx.de> # parisc
> ---
> v3: rebased on top of v5.13-rc1, collected a few more tags
> 
> Note WRT Andrew's SoB tag above: I have added it since part of the cases
> I took from him. Andrew, feel free to amend or tell me how you want me
> to do.
> 
>  arch/alpha/kernel/setup.c                     |  2 +-
>  arch/arm64/kernel/setup.c                     |  1 +
>  arch/mips/kernel/relocate.c                   |  1 +
>  arch/mips/sgi-ip22/ip22-reset.c               |  1 +
>  arch/mips/sgi-ip32/ip32-reset.c               |  1 +
>  arch/parisc/kernel/pdc_chassis.c              |  1 +
>  arch/powerpc/kernel/setup-common.c            |  1 +
>  arch/s390/kernel/ipl.c                        |  1 +
>  arch/sparc/kernel/sstate.c                    |  1 +
>  arch/um/drivers/mconsole_kern.c               |  1 +
>  arch/um/kernel/um_arch.c                      |  1 +
>  arch/x86/include/asm/desc.h                   |  1 +
>  arch/x86/kernel/cpu/mshyperv.c                |  1 +
>  arch/x86/kernel/setup.c                       |  1 +
>  arch/x86/purgatory/purgatory.c                |  2 +
>  arch/x86/xen/enlighten.c                      |  1 +
>  arch/xtensa/platforms/iss/setup.c             |  1 +
>  drivers/bus/brcmstb_gisb.c                    |  1 +
>  drivers/char/ipmi/ipmi_msghandler.c           |  1 +
>  drivers/clk/analogbits/wrpll-cln28hpc.c       |  4 +
>  drivers/edac/altera_edac.c                    |  1 +
>  drivers/firmware/google/gsmi.c                |  1 +
>  drivers/hv/vmbus_drv.c                        |  1 +
>  .../hwtracing/coresight/coresight-cpu-debug.c |  1 +

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>

>  drivers/leds/trigger/ledtrig-activity.c       |  1 +
>  drivers/leds/trigger/ledtrig-heartbeat.c      |  1 +
>  drivers/leds/trigger/ledtrig-panic.c          |  1 +
>  drivers/misc/bcm-vk/bcm_vk_dev.c              |  1 +
>  drivers/misc/ibmasm/heartbeat.c               |  1 +
>  drivers/misc/pvpanic/pvpanic.c                |  1 +
>  drivers/net/ipa/ipa_smp2p.c                   |  1 +
>  drivers/parisc/power.c                        |  1 +
>  drivers/power/reset/ltc2952-poweroff.c        |  1 +
>  drivers/remoteproc/remoteproc_core.c          |  1 +

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>

>  drivers/s390/char/con3215.c                   |  1 +
>  drivers/s390/char/con3270.c                   |  1 +
>  drivers/s390/char/sclp.c                      |  1 +
>  drivers/s390/char/sclp_con.c                  |  1 +
>  drivers/s390/char/sclp_vt220.c                |  1 +
>  drivers/s390/char/zcore.c                     |  1 +
>  drivers/soc/bcm/brcmstb/pm/pm-arm.c           |  1 +
>  drivers/staging/olpc_dcon/olpc_dcon.c         |  1 +
>  drivers/video/fbdev/hyperv_fb.c               |  1 +
>  include/asm-generic/bug.h                     |  3 +-
>  include/linux/kernel.h                        | 84 +---------------
>  include/linux/panic.h                         | 98 +++++++++++++++++++
>  include/linux/panic_notifier.h                | 12 +++
>  kernel/hung_task.c                            |  1 +
>  kernel/kexec_core.c                           |  1 +
>  kernel/panic.c                                |  1 +
>  kernel/rcu/tree.c                             |  2 +
>  kernel/sysctl.c                               |  1 +
>  kernel/trace/trace.c                          |  1 +
>  53 files changed, 167 insertions(+), 85 deletions(-)
>  create mode 100644 include/linux/panic.h
>  create mode 100644 include/linux/panic_notifier.h
> 
> diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
> index 03dda3beb3bd..5d1296534682 100644
> --- a/arch/alpha/kernel/setup.c
> +++ b/arch/alpha/kernel/setup.c
> @@ -28,6 +28,7 @@
>  #include <linux/init.h>
>  #include <linux/string.h>
>  #include <linux/ioport.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/platform_device.h>
>  #include <linux/memblock.h>
>  #include <linux/pci.h>
> @@ -46,7 +47,6 @@
>  #include <linux/log2.h>
>  #include <linux/export.h>
>  
> -extern struct atomic_notifier_head panic_notifier_list;
>  static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
>  static struct notifier_block alpha_panic_block = {
>  	alpha_panic_event,
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index 61845c0821d9..787bc0f601b3 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -23,6 +23,7 @@
>  #include <linux/interrupt.h>
>  #include <linux/smp.h>
>  #include <linux/fs.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/proc_fs.h>
>  #include <linux/memblock.h>
>  #include <linux/of_fdt.h>
> diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
> index 499a5357c09f..56b51de2dc51 100644
> --- a/arch/mips/kernel/relocate.c
> +++ b/arch/mips/kernel/relocate.c
> @@ -18,6 +18,7 @@
>  #include <linux/kernel.h>
>  #include <linux/libfdt.h>
>  #include <linux/of_fdt.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/sched/task.h>
>  #include <linux/start_kernel.h>
>  #include <linux/string.h>
> diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
> index c374f3ceec38..9028dbbb45dd 100644
> --- a/arch/mips/sgi-ip22/ip22-reset.c
> +++ b/arch/mips/sgi-ip22/ip22-reset.c
> @@ -12,6 +12,7 @@
>  #include <linux/kernel.h>
>  #include <linux/sched/signal.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/pm.h>
>  #include <linux/timer.h>
>  
> diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
> index 20d8637340be..18d1c115cd53 100644
> --- a/arch/mips/sgi-ip32/ip32-reset.c
> +++ b/arch/mips/sgi-ip32/ip32-reset.c
> @@ -12,6 +12,7 @@
>  #include <linux/init.h>
>  #include <linux/kernel.h>
>  #include <linux/module.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/sched.h>
>  #include <linux/sched/signal.h>
>  #include <linux/notifier.h>
> diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
> index 75ae88d13909..da154406d368 100644
> --- a/arch/parisc/kernel/pdc_chassis.c
> +++ b/arch/parisc/kernel/pdc_chassis.c
> @@ -20,6 +20,7 @@
>  #include <linux/init.h>
>  #include <linux/module.h>
>  #include <linux/kernel.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/notifier.h>
>  #include <linux/cache.h>
> diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
> index 74a98fff2c2f..046fe21b5c3b 100644
> --- a/arch/powerpc/kernel/setup-common.c
> +++ b/arch/powerpc/kernel/setup-common.c
> @@ -9,6 +9,7 @@
>  #undef DEBUG
>  
>  #include <linux/export.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/string.h>
>  #include <linux/sched.h>
>  #include <linux/init.h>
> diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
> index dba04fbc37a2..36f870dc944f 100644
> --- a/arch/s390/kernel/ipl.c
> +++ b/arch/s390/kernel/ipl.c
> @@ -13,6 +13,7 @@
>  #include <linux/init.h>
>  #include <linux/device.h>
>  #include <linux/delay.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/ctype.h>
>  #include <linux/fs.h>
> diff --git a/arch/sparc/kernel/sstate.c b/arch/sparc/kernel/sstate.c
> index ac8677c3841e..3bcc4ddc6911 100644
> --- a/arch/sparc/kernel/sstate.c
> +++ b/arch/sparc/kernel/sstate.c
> @@ -6,6 +6,7 @@
>  
>  #include <linux/kernel.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/init.h>
>  
> diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
> index 6d00af25ec6b..328b16f99b30 100644
> --- a/arch/um/drivers/mconsole_kern.c
> +++ b/arch/um/drivers/mconsole_kern.c
> @@ -12,6 +12,7 @@
>  #include <linux/mm.h>
>  #include <linux/module.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/sched/debug.h>
>  #include <linux/proc_fs.h>
> diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
> index 74e07e748a9b..9512253947d5 100644
> --- a/arch/um/kernel/um_arch.c
> +++ b/arch/um/kernel/um_arch.c
> @@ -7,6 +7,7 @@
>  #include <linux/init.h>
>  #include <linux/mm.h>
>  #include <linux/module.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/seq_file.h>
>  #include <linux/string.h>
>  #include <linux/utsname.h>
> diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
> index 476082a83d1c..ceb12683b6d1 100644
> --- a/arch/x86/include/asm/desc.h
> +++ b/arch/x86/include/asm/desc.h
> @@ -9,6 +9,7 @@
>  #include <asm/irq_vectors.h>
>  #include <asm/cpu_entry_area.h>
>  
> +#include <linux/debug_locks.h>
>  #include <linux/smp.h>
>  #include <linux/percpu.h>
>  
> diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
> index 22f13343b5da..9e5c6f2b044d 100644
> --- a/arch/x86/kernel/cpu/mshyperv.c
> +++ b/arch/x86/kernel/cpu/mshyperv.c
> @@ -17,6 +17,7 @@
>  #include <linux/irq.h>
>  #include <linux/kexec.h>
>  #include <linux/i8253.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/random.h>
>  #include <asm/processor.h>
>  #include <asm/hypervisor.h>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 72920af0b3c0..bdcdd29efea6 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -14,6 +14,7 @@
>  #include <linux/initrd.h>
>  #include <linux/iscsi_ibft.h>
>  #include <linux/memblock.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/pci.h>
>  #include <linux/root_dev.h>
>  #include <linux/hugetlb.h>
> diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
> index f03b64d9cb51..7558139920f8 100644
> --- a/arch/x86/purgatory/purgatory.c
> +++ b/arch/x86/purgatory/purgatory.c
> @@ -9,6 +9,8 @@
>   */
>  
>  #include <linux/bug.h>
> +#include <linux/kernel.h>
> +#include <linux/types.h>
>  #include <crypto/sha2.h>
>  #include <asm/purgatory.h>
>  
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index aa9f50fccc5d..c79bd0af2e8c 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -6,6 +6,7 @@
>  #include <linux/cpu.h>
>  #include <linux/kexec.h>
>  #include <linux/slab.h>
> +#include <linux/panic_notifier.h>
>  
>  #include <xen/xen.h>
>  #include <xen/features.h>
> diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
> index ed519aee0ec8..d3433e1bb94e 100644
> --- a/arch/xtensa/platforms/iss/setup.c
> +++ b/arch/xtensa/platforms/iss/setup.c
> @@ -14,6 +14,7 @@
>  #include <linux/init.h>
>  #include <linux/kernel.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/printk.h>
>  #include <linux/string.h>
>  
> diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c
> index 7355fa2cb439..6551286a60cc 100644
> --- a/drivers/bus/brcmstb_gisb.c
> +++ b/drivers/bus/brcmstb_gisb.c
> @@ -6,6 +6,7 @@
>  #include <linux/init.h>
>  #include <linux/types.h>
>  #include <linux/module.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/platform_device.h>
>  #include <linux/interrupt.h>
>  #include <linux/sysfs.h>
> diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
> index 8a0e97b33cae..e96cb5c4f97a 100644
> --- a/drivers/char/ipmi/ipmi_msghandler.c
> +++ b/drivers/char/ipmi/ipmi_msghandler.c
> @@ -16,6 +16,7 @@
>  
>  #include <linux/module.h>
>  #include <linux/errno.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/poll.h>
>  #include <linux/sched.h>
>  #include <linux/seq_file.h>
> diff --git a/drivers/clk/analogbits/wrpll-cln28hpc.c b/drivers/clk/analogbits/wrpll-cln28hpc.c
> index 776ead319ae9..7c64ea52a8d5 100644
> --- a/drivers/clk/analogbits/wrpll-cln28hpc.c
> +++ b/drivers/clk/analogbits/wrpll-cln28hpc.c
> @@ -23,8 +23,12 @@
>  
>  #include <linux/bug.h>
>  #include <linux/err.h>
> +#include <linux/limits.h>
>  #include <linux/log2.h>
>  #include <linux/math64.h>
> +#include <linux/math.h>
> +#include <linux/minmax.h>
> +
>  #include <linux/clk/analogbits-wrpll-cln28hpc.h>
>  
>  /* MIN_INPUT_FREQ: minimum input clock frequency, in Hz (Fref_min) */
> diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
> index 5f7fd79ec82f..61c21bd880a4 100644
> --- a/drivers/edac/altera_edac.c
> +++ b/drivers/edac/altera_edac.c
> @@ -20,6 +20,7 @@
>  #include <linux/of_address.h>
>  #include <linux/of_irq.h>
>  #include <linux/of_platform.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
>  #include <linux/types.h>
> diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
> index bb6e77ee3898..adaa492c3d2d 100644
> --- a/drivers/firmware/google/gsmi.c
> +++ b/drivers/firmware/google/gsmi.c
> @@ -19,6 +19,7 @@
>  #include <linux/dma-mapping.h>
>  #include <linux/fs.h>
>  #include <linux/slab.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/ioctl.h>
>  #include <linux/acpi.h>
>  #include <linux/io.h>
> diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
> index 92cb3f7d21d9..57bbbaa4e8f7 100644
> --- a/drivers/hv/vmbus_drv.c
> +++ b/drivers/hv/vmbus_drv.c
> @@ -25,6 +25,7 @@
>  
>  #include <linux/delay.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/ptrace.h>
>  #include <linux/screen_info.h>
>  #include <linux/kdebug.h>
> diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hwtracing/coresight/coresight-cpu-debug.c
> index 2dcf13de751f..9731d3a96073 100644
> --- a/drivers/hwtracing/coresight/coresight-cpu-debug.c
> +++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c
> @@ -17,6 +17,7 @@
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/moduleparam.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/pm_qos.h>
>  #include <linux/slab.h>
>  #include <linux/smp.h>
> diff --git a/drivers/leds/trigger/ledtrig-activity.c b/drivers/leds/trigger/ledtrig-activity.c
> index 14ba7faaed9e..30bc9df03636 100644
> --- a/drivers/leds/trigger/ledtrig-activity.c
> +++ b/drivers/leds/trigger/ledtrig-activity.c
> @@ -11,6 +11,7 @@
>  #include <linux/kernel_stat.h>
>  #include <linux/leds.h>
>  #include <linux/module.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/sched.h>
>  #include <linux/slab.h>
> diff --git a/drivers/leds/trigger/ledtrig-heartbeat.c b/drivers/leds/trigger/ledtrig-heartbeat.c
> index 36b6709afe9f..7fe0a05574d2 100644
> --- a/drivers/leds/trigger/ledtrig-heartbeat.c
> +++ b/drivers/leds/trigger/ledtrig-heartbeat.c
> @@ -11,6 +11,7 @@
>  #include <linux/module.h>
>  #include <linux/kernel.h>
>  #include <linux/init.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/slab.h>
>  #include <linux/timer.h>
>  #include <linux/sched.h>
> diff --git a/drivers/leds/trigger/ledtrig-panic.c b/drivers/leds/trigger/ledtrig-panic.c
> index 5751cd032f9d..64abf2e91608 100644
> --- a/drivers/leds/trigger/ledtrig-panic.c
> +++ b/drivers/leds/trigger/ledtrig-panic.c
> @@ -8,6 +8,7 @@
>  #include <linux/kernel.h>
>  #include <linux/init.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/leds.h>
>  #include "../leds.h"
>  
> diff --git a/drivers/misc/bcm-vk/bcm_vk_dev.c b/drivers/misc/bcm-vk/bcm_vk_dev.c
> index 6bfea3210389..ad639ee85b2a 100644
> --- a/drivers/misc/bcm-vk/bcm_vk_dev.c
> +++ b/drivers/misc/bcm-vk/bcm_vk_dev.c
> @@ -9,6 +9,7 @@
>  #include <linux/fs.h>
>  #include <linux/idr.h>
>  #include <linux/interrupt.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/kref.h>
>  #include <linux/module.h>
>  #include <linux/mutex.h>
> diff --git a/drivers/misc/ibmasm/heartbeat.c b/drivers/misc/ibmasm/heartbeat.c
> index 4f5f3bdc814d..59c9a0d95659 100644
> --- a/drivers/misc/ibmasm/heartbeat.c
> +++ b/drivers/misc/ibmasm/heartbeat.c
> @@ -9,6 +9,7 @@
>   */
>  
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include "ibmasm.h"
>  #include "dot_command.h"
>  #include "lowlevel.h"
> diff --git a/drivers/misc/pvpanic/pvpanic.c b/drivers/misc/pvpanic/pvpanic.c
> index 65f70a4da8c0..793ea0c01193 100644
> --- a/drivers/misc/pvpanic/pvpanic.c
> +++ b/drivers/misc/pvpanic/pvpanic.c
> @@ -13,6 +13,7 @@
>  #include <linux/mod_devicetable.h>
>  #include <linux/module.h>
>  #include <linux/platform_device.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/types.h>
>  #include <linux/cdev.h>
>  #include <linux/list.h>
> diff --git a/drivers/net/ipa/ipa_smp2p.c b/drivers/net/ipa/ipa_smp2p.c
> index a5f7a79a1923..34b68dc43886 100644
> --- a/drivers/net/ipa/ipa_smp2p.c
> +++ b/drivers/net/ipa/ipa_smp2p.c
> @@ -8,6 +8,7 @@
>  #include <linux/device.h>
>  #include <linux/interrupt.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/soc/qcom/smem.h>
>  #include <linux/soc/qcom/smem_state.h>
>  
> diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
> index ebaf6867b457..456776bd8ee6 100644
> --- a/drivers/parisc/power.c
> +++ b/drivers/parisc/power.c
> @@ -38,6 +38,7 @@
>  #include <linux/init.h>
>  #include <linux/kernel.h>
>  #include <linux/notifier.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/sched/signal.h>
>  #include <linux/kthread.h>
> diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
> index d1495af30081..8688c8ba8894 100644
> --- a/drivers/power/reset/ltc2952-poweroff.c
> +++ b/drivers/power/reset/ltc2952-poweroff.c
> @@ -52,6 +52,7 @@
>  #include <linux/slab.h>
>  #include <linux/kmod.h>
>  #include <linux/module.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/mod_devicetable.h>
>  #include <linux/gpio/consumer.h>
>  #include <linux/reboot.h>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 626a6b90fba2..76dd8e2b1e7e 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -20,6 +20,7 @@
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/device.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/slab.h>
>  #include <linux/mutex.h>
>  #include <linux/dma-map-ops.h>
> diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
> index 1fd5bca9fa20..02523f4e29f4 100644
> --- a/drivers/s390/char/con3215.c
> +++ b/drivers/s390/char/con3215.c
> @@ -19,6 +19,7 @@
>  #include <linux/console.h>
>  #include <linux/interrupt.h>
>  #include <linux/err.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/serial.h> /* ASYNC_* flags */
>  #include <linux/slab.h>
> diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
> index e21962c0fd94..87cdbace1453 100644
> --- a/drivers/s390/char/con3270.c
> +++ b/drivers/s390/char/con3270.c
> @@ -13,6 +13,7 @@
>  #include <linux/init.h>
>  #include <linux/interrupt.h>
>  #include <linux/list.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/types.h>
>  #include <linux/slab.h>
>  #include <linux/err.h>
> diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
> index 986bbbc23d0a..6627820a5eb9 100644
> --- a/drivers/s390/char/sclp.c
> +++ b/drivers/s390/char/sclp.c
> @@ -11,6 +11,7 @@
>  #include <linux/kernel_stat.h>
>  #include <linux/module.h>
>  #include <linux/err.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/spinlock.h>
>  #include <linux/interrupt.h>
>  #include <linux/timer.h>
> diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c
> index 9b852a47ccc1..cc01a7b8595d 100644
> --- a/drivers/s390/char/sclp_con.c
> +++ b/drivers/s390/char/sclp_con.c
> @@ -10,6 +10,7 @@
>  #include <linux/kmod.h>
>  #include <linux/console.h>
>  #include <linux/init.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/timer.h>
>  #include <linux/jiffies.h>
>  #include <linux/termios.h>
> diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
> index 7f4445b0f819..5b8a7b090a97 100644
> --- a/drivers/s390/char/sclp_vt220.c
> +++ b/drivers/s390/char/sclp_vt220.c
> @@ -9,6 +9,7 @@
>  
>  #include <linux/module.h>
>  #include <linux/spinlock.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/list.h>
>  #include <linux/wait.h>
>  #include <linux/timer.h>
> diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
> index bd3c724bf695..b5b0848da93b 100644
> --- a/drivers/s390/char/zcore.c
> +++ b/drivers/s390/char/zcore.c
> @@ -15,6 +15,7 @@
>  #include <linux/init.h>
>  #include <linux/slab.h>
>  #include <linux/debugfs.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  
>  #include <asm/asm-offsets.h>
> diff --git a/drivers/soc/bcm/brcmstb/pm/pm-arm.c b/drivers/soc/bcm/brcmstb/pm/pm-arm.c
> index a673fdffe216..3cbb165d6e30 100644
> --- a/drivers/soc/bcm/brcmstb/pm/pm-arm.c
> +++ b/drivers/soc/bcm/brcmstb/pm/pm-arm.c
> @@ -28,6 +28,7 @@
>  #include <linux/notifier.h>
>  #include <linux/of.h>
>  #include <linux/of_address.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm.h>
>  #include <linux/printk.h>
> diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
> index 6d8e9a481786..7284cb4ac395 100644
> --- a/drivers/staging/olpc_dcon/olpc_dcon.c
> +++ b/drivers/staging/olpc_dcon/olpc_dcon.c
> @@ -22,6 +22,7 @@
>  #include <linux/device.h>
>  #include <linux/uaccess.h>
>  #include <linux/ctype.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/reboot.h>
>  #include <linux/olpc-ec.h>
>  #include <asm/tsc.h>
> diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
> index a7e6eea2c4a1..23999df52739 100644
> --- a/drivers/video/fbdev/hyperv_fb.c
> +++ b/drivers/video/fbdev/hyperv_fb.c
> @@ -52,6 +52,7 @@
>  #include <linux/completion.h>
>  #include <linux/fb.h>
>  #include <linux/pci.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/efi.h>
>  #include <linux/console.h>
>  
> diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
> index b402494883b6..f152b9bb916f 100644
> --- a/include/asm-generic/bug.h
> +++ b/include/asm-generic/bug.h
> @@ -17,7 +17,8 @@
>  #endif
>  
>  #ifndef __ASSEMBLY__
> -#include <linux/kernel.h>
> +#include <linux/panic.h>
> +#include <linux/printk.h>
>  
>  #ifdef CONFIG_BUG
>  
> diff --git a/include/linux/kernel.h b/include/linux/kernel.h
> index 15d8bad3d2f2..50f4a57cf50c 100644
> --- a/include/linux/kernel.h
> +++ b/include/linux/kernel.h
> @@ -14,6 +14,7 @@
>  #include <linux/math.h>
>  #include <linux/minmax.h>
>  #include <linux/typecheck.h>
> +#include <linux/panic.h>
>  #include <linux/printk.h>
>  #include <linux/build_bug.h>
>  #include <linux/static_call_types.h>
> @@ -72,7 +73,6 @@
>  #define lower_32_bits(n) ((u32)((n) & 0xffffffff))
>  
>  struct completion;
> -struct pt_regs;
>  struct user;
>  
>  #ifdef CONFIG_PREEMPT_VOLUNTARY
> @@ -177,14 +177,6 @@ void __might_fault(const char *file, int line);
>  static inline void might_fault(void) { }
>  #endif
>  
> -extern struct atomic_notifier_head panic_notifier_list;
> -extern long (*panic_blink)(int state);
> -__printf(1, 2)
> -void panic(const char *fmt, ...) __noreturn __cold;
> -void nmi_panic(struct pt_regs *regs, const char *msg);
> -extern void oops_enter(void);
> -extern void oops_exit(void);
> -extern bool oops_may_print(void);
>  void do_exit(long error_code) __noreturn;
>  void complete_and_exit(struct completion *, long) __noreturn;
>  
> @@ -370,52 +362,8 @@ extern int __kernel_text_address(unsigned long addr);
>  extern int kernel_text_address(unsigned long addr);
>  extern int func_ptr_is_kernel_text(void *ptr);
>  
> -#ifdef CONFIG_SMP
> -extern unsigned int sysctl_oops_all_cpu_backtrace;
> -#else
> -#define sysctl_oops_all_cpu_backtrace 0
> -#endif /* CONFIG_SMP */
> -
>  extern void bust_spinlocks(int yes);
> -extern int panic_timeout;
> -extern unsigned long panic_print;
> -extern int panic_on_oops;
> -extern int panic_on_unrecovered_nmi;
> -extern int panic_on_io_nmi;
> -extern int panic_on_warn;
> -extern unsigned long panic_on_taint;
> -extern bool panic_on_taint_nousertaint;
> -extern int sysctl_panic_on_rcu_stall;
> -extern int sysctl_max_rcu_stall_to_panic;
> -extern int sysctl_panic_on_stackoverflow;
> -
> -extern bool crash_kexec_post_notifiers;
>  
> -/*
> - * panic_cpu is used for synchronizing panic() and crash_kexec() execution. It
> - * holds a CPU number which is executing panic() currently. A value of
> - * PANIC_CPU_INVALID means no CPU has entered panic() or crash_kexec().
> - */
> -extern atomic_t panic_cpu;
> -#define PANIC_CPU_INVALID	-1
> -
> -/*
> - * Only to be used by arch init code. If the user over-wrote the default
> - * CONFIG_PANIC_TIMEOUT, honor it.
> - */
> -static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
> -{
> -	if (panic_timeout == arch_default_timeout)
> -		panic_timeout = timeout;
> -}
> -extern const char *print_tainted(void);
> -enum lockdep_ok {
> -	LOCKDEP_STILL_OK,
> -	LOCKDEP_NOW_UNRELIABLE
> -};
> -extern void add_taint(unsigned flag, enum lockdep_ok);
> -extern int test_taint(unsigned flag);
> -extern unsigned long get_taint(void);
>  extern int root_mountflags;
>  
>  extern bool early_boot_irqs_disabled;
> @@ -434,36 +382,6 @@ extern enum system_states {
>  	SYSTEM_SUSPEND,
>  } system_state;
>  
> -/* This cannot be an enum because some may be used in assembly source. */
> -#define TAINT_PROPRIETARY_MODULE	0
> -#define TAINT_FORCED_MODULE		1
> -#define TAINT_CPU_OUT_OF_SPEC		2
> -#define TAINT_FORCED_RMMOD		3
> -#define TAINT_MACHINE_CHECK		4
> -#define TAINT_BAD_PAGE			5
> -#define TAINT_USER			6
> -#define TAINT_DIE			7
> -#define TAINT_OVERRIDDEN_ACPI_TABLE	8
> -#define TAINT_WARN			9
> -#define TAINT_CRAP			10
> -#define TAINT_FIRMWARE_WORKAROUND	11
> -#define TAINT_OOT_MODULE		12
> -#define TAINT_UNSIGNED_MODULE		13
> -#define TAINT_SOFTLOCKUP		14
> -#define TAINT_LIVEPATCH			15
> -#define TAINT_AUX			16
> -#define TAINT_RANDSTRUCT		17
> -#define TAINT_FLAGS_COUNT		18
> -#define TAINT_FLAGS_MAX			((1UL << TAINT_FLAGS_COUNT) - 1)
> -
> -struct taint_flag {
> -	char c_true;	/* character printed when tainted */
> -	char c_false;	/* character printed when not tainted */
> -	bool module;	/* also show as a per-module taint flag */
> -};
> -
> -extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
> -
>  extern const char hex_asc[];
>  #define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]
>  #define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]
> diff --git a/include/linux/panic.h b/include/linux/panic.h
> new file mode 100644
> index 000000000000..f5844908a089
> --- /dev/null
> +++ b/include/linux/panic.h
> @@ -0,0 +1,98 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef _LINUX_PANIC_H
> +#define _LINUX_PANIC_H
> +
> +#include <linux/compiler_attributes.h>
> +#include <linux/types.h>
> +
> +struct pt_regs;
> +
> +extern long (*panic_blink)(int state);
> +__printf(1, 2)
> +void panic(const char *fmt, ...) __noreturn __cold;
> +void nmi_panic(struct pt_regs *regs, const char *msg);
> +extern void oops_enter(void);
> +extern void oops_exit(void);
> +extern bool oops_may_print(void);
> +
> +#ifdef CONFIG_SMP
> +extern unsigned int sysctl_oops_all_cpu_backtrace;
> +#else
> +#define sysctl_oops_all_cpu_backtrace 0
> +#endif /* CONFIG_SMP */
> +
> +extern int panic_timeout;
> +extern unsigned long panic_print;
> +extern int panic_on_oops;
> +extern int panic_on_unrecovered_nmi;
> +extern int panic_on_io_nmi;
> +extern int panic_on_warn;
> +
> +extern unsigned long panic_on_taint;
> +extern bool panic_on_taint_nousertaint;
> +
> +extern int sysctl_panic_on_rcu_stall;
> +extern int sysctl_max_rcu_stall_to_panic;
> +extern int sysctl_panic_on_stackoverflow;
> +
> +extern bool crash_kexec_post_notifiers;
> +
> +/*
> + * panic_cpu is used for synchronizing panic() and crash_kexec() execution. It
> + * holds a CPU number which is executing panic() currently. A value of
> + * PANIC_CPU_INVALID means no CPU has entered panic() or crash_kexec().
> + */
> +extern atomic_t panic_cpu;
> +#define PANIC_CPU_INVALID	-1
> +
> +/*
> + * Only to be used by arch init code. If the user over-wrote the default
> + * CONFIG_PANIC_TIMEOUT, honor it.
> + */
> +static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
> +{
> +	if (panic_timeout == arch_default_timeout)
> +		panic_timeout = timeout;
> +}
> +
> +/* This cannot be an enum because some may be used in assembly source. */
> +#define TAINT_PROPRIETARY_MODULE	0
> +#define TAINT_FORCED_MODULE		1
> +#define TAINT_CPU_OUT_OF_SPEC		2
> +#define TAINT_FORCED_RMMOD		3
> +#define TAINT_MACHINE_CHECK		4
> +#define TAINT_BAD_PAGE			5
> +#define TAINT_USER			6
> +#define TAINT_DIE			7
> +#define TAINT_OVERRIDDEN_ACPI_TABLE	8
> +#define TAINT_WARN			9
> +#define TAINT_CRAP			10
> +#define TAINT_FIRMWARE_WORKAROUND	11
> +#define TAINT_OOT_MODULE		12
> +#define TAINT_UNSIGNED_MODULE		13
> +#define TAINT_SOFTLOCKUP		14
> +#define TAINT_LIVEPATCH			15
> +#define TAINT_AUX			16
> +#define TAINT_RANDSTRUCT		17
> +#define TAINT_FLAGS_COUNT		18
> +#define TAINT_FLAGS_MAX			((1UL << TAINT_FLAGS_COUNT) - 1)
> +
> +struct taint_flag {
> +	char c_true;	/* character printed when tainted */
> +	char c_false;	/* character printed when not tainted */
> +	bool module;	/* also show as a per-module taint flag */
> +};
> +
> +extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
> +
> +enum lockdep_ok {
> +	LOCKDEP_STILL_OK,
> +	LOCKDEP_NOW_UNRELIABLE,
> +};
> +
> +extern const char *print_tainted(void);
> +extern void add_taint(unsigned flag, enum lockdep_ok);
> +extern int test_taint(unsigned flag);
> +extern unsigned long get_taint(void);
> +
> +#endif	/* _LINUX_PANIC_H */
> diff --git a/include/linux/panic_notifier.h b/include/linux/panic_notifier.h
> new file mode 100644
> index 000000000000..41e32483d7a7
> --- /dev/null
> +++ b/include/linux/panic_notifier.h
> @@ -0,0 +1,12 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef _LINUX_PANIC_NOTIFIERS_H
> +#define _LINUX_PANIC_NOTIFIERS_H
> +
> +#include <linux/notifier.h>
> +#include <linux/types.h>
> +
> +extern struct atomic_notifier_head panic_notifier_list;
> +
> +extern bool crash_kexec_post_notifiers;
> +
> +#endif	/* _LINUX_PANIC_NOTIFIERS_H */
> diff --git a/kernel/hung_task.c b/kernel/hung_task.c
> index bb2e3e15c84c..2871076e4d29 100644
> --- a/kernel/hung_task.c
> +++ b/kernel/hung_task.c
> @@ -15,6 +15,7 @@
>  #include <linux/kthread.h>
>  #include <linux/lockdep.h>
>  #include <linux/export.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/sysctl.h>
>  #include <linux/suspend.h>
>  #include <linux/utsname.h>
> diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
> index f099baee3578..4b34a9aa32bc 100644
> --- a/kernel/kexec_core.c
> +++ b/kernel/kexec_core.c
> @@ -26,6 +26,7 @@
>  #include <linux/suspend.h>
>  #include <linux/device.h>
>  #include <linux/freezer.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/pm.h>
>  #include <linux/cpu.h>
>  #include <linux/uaccess.h>
> diff --git a/kernel/panic.c b/kernel/panic.c
> index 332736a72a58..edad89660a2b 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -23,6 +23,7 @@
>  #include <linux/reboot.h>
>  #include <linux/delay.h>
>  #include <linux/kexec.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/sched.h>
>  #include <linux/sysrq.h>
>  #include <linux/init.h>
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index 3a5fef9fc934..faa847ce28cd 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
> @@ -32,6 +32,8 @@
>  #include <linux/export.h>
>  #include <linux/completion.h>
>  #include <linux/moduleparam.h>
> +#include <linux/panic.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/percpu.h>
>  #include <linux/notifier.h>
>  #include <linux/cpu.h>
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 6e0b77f1117c..304be14fa09b 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -27,6 +27,7 @@
>  #include <linux/sysctl.h>
>  #include <linux/bitmap.h>
>  #include <linux/signal.h>
> +#include <linux/panic.h>
>  #include <linux/printk.h>
>  #include <linux/proc_fs.h>
>  #include <linux/security.h>
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 560e4c8d3825..1c4e702133e8 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -39,6 +39,7 @@
>  #include <linux/slab.h>
>  #include <linux/ctype.h>
>  #include <linux/init.h>
> +#include <linux/panic_notifier.h>
>  #include <linux/poll.h>
>  #include <linux/nmi.h>
>  #include <linux/fs.h>
> -- 
> 2.30.2
>