The patch titled Subject: mm/memory-failure: don't export hwpoison_filter() when !CONFIG_HWPOISON_INJECT has been added to the -mm mm-unstable branch. Its filename is mm-memory-failure-dont-export-hwpoison_filter-when-config_hwpoison_inject.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-failure-dont-export-hwpoison_filter-when-config_hwpoison_inject.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Miaohe Lin <linmiaohe@xxxxxxxxxx> Subject: mm/memory-failure: don't export hwpoison_filter() when !CONFIG_HWPOISON_INJECT Date: Wed, 12 Jun 2024 15:18:29 +0800 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 in that case. Link: https://lkml.kernel.org/r/20240612071835.157004-8-linmiaohe@xxxxxxxxxx Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202406070136.hGQwVbsv-lkp@xxxxxxxxx/ Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: Naoya Horiguchi <nao.horiguchi@xxxxxxxxx> Cc: Tony Luck <tony.luck@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memory-failure.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/memory-failure.c~mm-memory-failure-dont-export-hwpoison_filter-when-config_hwpoison_inject +++ a/mm/memory-failure.c @@ -294,6 +294,7 @@ int hwpoison_filter(struct page *p) return 0; } +EXPORT_SYMBOL_GPL(hwpoison_filter); #else int hwpoison_filter(struct page *p) { @@ -301,8 +302,6 @@ int hwpoison_filter(struct page *p) } #endif -EXPORT_SYMBOL_GPL(hwpoison_filter); - /* * Kill all processes that have a poisoned page mapped and then isolate * the page. _ Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are mm-memory-failure-simplify-put_ref_page.patch mm-memory-failure-remove-mf_msg_slab.patch mm-memory-failure-add-macro-get_page_max_retry_num.patch mm-memory-failure-save-some-page_folio-calls.patch mm-memory-failure-remove-unneeded-empty-string.patch mm-memory-failure-remove-confusing-initialization-to-count.patch mm-memory-failure-dont-export-hwpoison_filter-when-config_hwpoison_inject.patch mm-memory-failure-use-helper-macro-task_pid_nr.patch mm-memory-failure-remove-obsolete-comment-in-unpoison_memory.patch mm-memory-failure-move-some-function-declarations-into-internalh.patch mm-memory-failure-fix-comment-of-get_hwpoison_page.patch mm-memory-failure-remove-obsolete-comment-in-kill_proc.patch mm-memory-failure-correct-comment-in-me_swapcache_dirty.patch