Messages in this thread Patch in this message | | | From | Josh Poimboeuf <> | Subject | [PATCH v4 4/4] x86/nospec: Remove barrier_nospec() | Date | Tue, 4 May 2021 22:54:32 -0500 |
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The barrier_nospec() macro is no longer used. Its uses have been replaced with address and array index masking. Remove it.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- arch/x86/include/asm/barrier.h | 3 --- 1 file changed, 3 deletions(-)
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h index 4819d5e5a335..88f692d4f4ec 100644 --- a/arch/x86/include/asm/barrier.h +++ b/arch/x86/include/asm/barrier.h @@ -48,9 +48,6 @@ static inline unsigned long array_index_mask_nospec(unsigned long index, /* Override the default implementation from linux/nospec.h. */ #define array_index_mask_nospec array_index_mask_nospec -/* Prevent speculative execution past this barrier. */ -#define barrier_nospec() alternative("", "lfence", X86_FEATURE_LFENCE_RDTSC) - #define dma_rmb() barrier() #define dma_wmb() barrier() -- 2.31.1
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