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authorFeng Tang <feng.tang@linux.alibaba.com>2025-12-31 16:03:09 +0800
committerAndrew Morton <akpm@linux-foundation.org>2026-01-14 22:16:22 -0800
commite561383a39ed6e5c85a0b2369720743b694327ae (patch)
tree79349187363899d267cf1c70a058b025aae90eb8 /include/linux
parentf171b55f1441294344b86edfeaa575ea9673fd23 (diff)
powerpc/watchdog: add support for hardlockup_sys_info sysctl
Commit a9af76a78760 ("watchdog: add sys_info sysctls to dump sys info on system lockup") adds 'hardlock_sys_info' systcl knob for general kernel watchdog to control what kinds of system debug info to be dumped on hardlockup. Add similar support in powerpc watchdog code to make the sysctl knob more general, which also fixes a compiling warning in general watchdog code reported by 0day bot. Link: https://lkml.kernel.org/r/20251231080309.39642-1-feng.tang@linux.alibaba.com Fixes: a9af76a78760 ("watchdog: add sys_info sysctls to dump sys info on system lockup") Signed-off-by: Feng Tang <feng.tang@linux.alibaba.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202512030920.NFKtekA7-lkp@intel.com/ Suggested-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/nmi.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index cf3c6ab408aa..207156f2143c 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -83,6 +83,7 @@ static inline void reset_hung_task_detector(void) { }
#if defined(CONFIG_HARDLOCKUP_DETECTOR)
extern void hardlockup_detector_disable(void);
extern unsigned int hardlockup_panic;
+extern unsigned long hardlockup_si_mask;
#else
static inline void hardlockup_detector_disable(void) {}
#endif