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authorArnd Bergmann <arnd@arndb.de>2021-02-10 00:42:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-10 04:26:44 +0300
commita30a29091b5a6d4c64b5fc77040720a65e2dd4e6 (patch)
treeac222c5119601c8be28468638b3531365791d268 /mm/mremap.c
parent793f49a87aae24e5bcf92ad98d764153fc936570 (diff)
downloadlinux-a30a29091b5a6d4c64b5fc77040720a65e2dd4e6.tar.xz
mm/mremap: fix BUILD_BUG_ON() error in get_extent
clang can't evaluate this function argument at compile time when the function is not inlined, which leads to a link time failure: ld.lld: error: undefined symbol: __compiletime_assert_414 >>> referenced by mremap.c >>> mremap.o:(get_extent) in archive mm/built-in.a Mark the function as __always_inline to avoid it. Link: https://lkml.kernel.org/r/20201230154104.522605-1-arnd@kernel.org Fixes: 9ad9718bfa41 ("mm/mremap: calculate extent in one place") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Cc: Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Brian Geffon <bgeffon@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mremap.c')
-rw-r--r--mm/mremap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index f554320281cc..aa63bfd3cad2 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -336,8 +336,9 @@ enum pgt_entry {
* valid. Else returns a smaller extent bounded by the end of the source and
* destination pgt_entry.
*/
-static unsigned long get_extent(enum pgt_entry entry, unsigned long old_addr,
- unsigned long old_end, unsigned long new_addr)
+static __always_inline unsigned long get_extent(enum pgt_entry entry,
+ unsigned long old_addr, unsigned long old_end,
+ unsigned long new_addr)
{
unsigned long next, extent, mask, size;