Messages in this thread Patch in this message | | | From | Will Deacon <> | Subject | [PATCH 06/13] READ_ONCE: Remove smp_read_barrier_depends() invocation | Date | Fri, 8 Nov 2019 17:01:13 +0000 |
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Alpha overrides '__read_once_size_n()' directly, so there's no need to use 'smp_read_barrier_depends()' in the core code.
Signed-off-by: Will Deacon <will@kernel.org> --- include/asm-generic/rwonce.h | 1 - 1 file changed, 1 deletion(-)
diff --git a/include/asm-generic/rwonce.h b/include/asm-generic/rwonce.h index 2c2ac0948c94..2e3289268a89 100644 --- a/include/asm-generic/rwonce.h +++ b/include/asm-generic/rwonce.h @@ -102,7 +102,6 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s __read_once_size(&(x), __u.__c, sizeof(x)); \ else \ __read_once_size_nocheck(&(x), __u.__c, sizeof(x)); \ - smp_read_barrier_depends(); /* Enforce dependency ordering from x */ \ __u.__val; \ }) #define READ_ONCE(x) __READ_ONCE(x, 1) -- 2.24.0.rc1.363.gb1bccd3e3d-goog
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