The patch titled
Subject: mm/mremap: fix BUILD_BUG_ON() error in get_extent
has been removed from the -mm tree. Its filename was
mm-mremap-fix-build_bug_on-error-in-get_extent.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: 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@xxxxxxxxxx
Fixes: 9ad9718bfa41 ("mm/mremap: calculate extent in one place")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>
Cc: Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Dmitry Safonov <0x7f454c46@xxxxxxxxx>
Cc: Brian Geffon <bgeffon@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mremap.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/mm/mremap.c~mm-mremap-fix-build_bug_on-error-in-get_extent
+++ a/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;
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
kasan-add-match-all-tag-tests-fix.patch
