The patch titled Subject: mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix has been added to the -mm tree. Its filename is mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix.patch 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 and is updated there every 3-4 working days ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix export is_free_buddy_page() to modules ERROR: modpost: "is_free_buddy_page" [mm/hwpoison-inject.ko] undefined! Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx> Cc: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/page_alloc.c~mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix +++ a/mm/page_alloc.c @@ -9520,6 +9520,7 @@ bool is_free_buddy_page(struct page *pag return order < MAX_ORDER; } +EXPORT_SYMBOL(is_free_buddy_page); #ifdef CONFIG_MEMORY_FAILURE /* _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are mm.patch kasan-improve-vmalloc-tests-fix-3-fix.patch documentation-vm-page_ownerrst-update-the-documentation-fix.patch x86-mm-enable-arch_has_vm_get_page_prot-fix.patch mm-mempolicy-convert-from-atomic_t-to-refcount_t-on-mempolicy-refcnt-fix.patch mm-handle-uninitialized-numa-nodes-gracefully-fix.patch mm-memory_hotplug-remove-obsolete-comment-of-__add_pages-fix.patch proc-alloc-path_max-bytes-for-proc-pid-fd-symlinks-fix.patch linux-next-rejects.patch drivers-gpu-drm-dp-drm_dpc-fix-build.patch mutex-subsystem-synchro-test-module-fix.patch kernel-forkc-export-kernel_thread-to-modules.patch remove-bdi_congested-and-wb_congested-and-related-functions-fix.patch mm-hwpoison-inject-support-injecting-hwpoison-to-free-page-fix.patch