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arm64: memory: Add missing brackets to untagged_addr() macro 

Add brackets around the evaluation of the 'addr' parameter to the
untagged_addr() macro so that the cast to 'u64' applies to the result
of the expression.

Cc: <stable@vger.kernel.org>
Fixes: 597399d0cb ("arm64: tags: Preserve tags for addresses translated via TTBR1")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Will Deacon 2020-02-19 10:19:13 +00:00
parent dd1f6308b2
commit d0022c0ef2
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/memory.h
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@ -213,7 +213,7 @@ static inline unsigned long kaslr_offset(void)
((__force __typeof__(addr))sign_extend64((__force u64)(addr), 55)) ((__force __typeof__(addr))sign_extend64((__force u64)(addr), 55))
#define untagged_addr(addr) ({ \ #define untagged_addr(addr) ({ \
u64 __addr = (__force u64)addr; \ u64 __addr = (__force u64)(addr); \
__addr &= __untagged_addr(__addr); \ __addr &= __untagged_addr(__addr); \
(__force __typeof__(addr))__addr; \ (__force __typeof__(addr))__addr; \
}) })