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 Signed-off-by: Andrew Morton akpm@linux-foundation.org --- v2: - fixed all errors with allmodconfig on x86_64 (Andrew) - checked with allyesconfig on x86_64 - additionally grepped source code for panic notifier list usage and converted all users - elaborated commit message (Luis) - collected given tags (incl. Andrew's SoB, see below)

I added Andrew's SoB since part of the fixes 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 + 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 + 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 7a21eca498aa..e0b675dd7080 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 59e5e0903b0c..570699eecf90 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 004c3390c15f..7107b9b6eff4 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 4dc9077dd2ac..ac06ee7c87d7 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 76a10e0dca9f..719410b93f99 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 09035ac67d4b..6c5a05ac1ecb 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> @@ -70,7 +71,6 @@ #define lower_32_bits(n) ((u32)((n) & 0xffffffff))

struct completion; -struct pt_regs; struct user;

#ifdef CONFIG_PREEMPT_VOLUNTARY @@ -175,14 +175,6 @@ 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;

@@ -368,52 +360,8 @@ 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; @@ -432,36 +380,6 @@ 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 03282196953a..67f8f65a9ada 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 3601786ddaeb..e5cf9c4ef5e1 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 507a30bf26e4..9612a1d8fa13 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>