When CONFIG_HWPOISON_INJECT is not enabled, there is no user of the hwpoison_filter() outside memory-failure. So there is no need to export it and we can further make it 'static' and 'inline'. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202405242336.o1NEOrln-lkp@xxxxxxxxx/ Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> --- mm/memory-failure.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 339752d768d8..6e26b8b975e5 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -294,15 +294,14 @@ int hwpoison_filter(struct page *p) return 0; } +EXPORT_SYMBOL_GPL(hwpoison_filter); #else -int hwpoison_filter(struct page *p) +static inline int hwpoison_filter(struct page *p) { return 0; } #endif -EXPORT_SYMBOL_GPL(hwpoison_filter); - /* * Kill all processes that have a poisoned page mapped and then isolate * the page. -- 2.33.0