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authorLinus Torvalds <torvalds@linux-foundation.org>2021-05-15 10:00:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-15 10:00:35 -0700
commit91b7a0f0637c14ce0d252111cf9bca3830e16593 (patch)
treeda7d03ef17f7334fca273c3767f37126054a092a /include
parenta4147415bdf152748416e391dd5d6958ad0a96da (diff)
parent2515dd6ce8e545b0b2eece84920048ef9ed846c4 (diff)
Merge tag 'core-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 stack randomization fix from Ingo Molnar: "Fix an assembly constraint that affected LLVM up to version 12" * tag 'core-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stack: Replace "o" output with "r" input constraint
Diffstat (limited to 'include')
-rw-r--r--include/linux/randomize_kstack.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/randomize_kstack.h b/include/linux/randomize_kstack.h
index fd80fab663a9..bebc911161b6 100644
--- a/include/linux/randomize_kstack.h
+++ b/include/linux/randomize_kstack.h
@@ -38,7 +38,7 @@ void *__builtin_alloca(size_t size);
u32 offset = raw_cpu_read(kstack_offset); \
u8 *ptr = __builtin_alloca(KSTACK_OFFSET_MAX(offset)); \
/* Keep allocation even after "ptr" loses scope. */ \
- asm volatile("" : "=o"(*ptr) :: "memory"); \
+ asm volatile("" :: "r"(ptr) : "memory"); \
} \
} while (0)