Add missing static inline stub for mmu_notifier_oom_enter() in the !CONFIG_MMU_NOTIFIER section of include/linux/mmu_notifier.h. Without this stub, allnoconfig builds fail with: mm/oom_kill.c:523: error: implicit declaration of function 'mmu_notifier_oom_enter' Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202605031109.uxckW5L3-lkp@intel.com/ Signed-off-by: shaikh.kamal --- include/linux/mmu_notifier.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 0ccd590f55d3..ad1a5e311ab7 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -670,6 +670,10 @@ static inline void mmu_notifier_synchronize(void) { } +static inline void mmu_notifier_oom_enter(struct mm_struct *mm) +{ +} + #endif /* CONFIG_MMU_NOTIFIER */ #endif /* _LINUX_MMU_NOTIFIER_H */ -- 2.43.0