Commit 57ce8a4e authored by Eric Biggers's avatar Eric Biggers Committed by Herbert Xu
Browse files

crypto: x86/sha256-avx2 - add missing vzeroupper 



Since sha256_transform_rorx() uses ymm registers, execute vzeroupper
before returning from it.  This is necessary to avoid reducing the
performance of SSE code.

Fixes: d34a4600 ("crypto: sha256 - Optimized sha256 x86_64 routine using AVX2's RORX instructions")
Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
Acked-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4ad096cc

arch/x86/crypto/sha256-avx2-asm.S

+1 −0
Original line number Diff line number Diff line
@@ -716,6 +716,7 @@ SYM_TYPED_FUNC_START(sha256_transform_rorx) 
	popq	%r13

	popq	%r12

	popq	%rbx

	vzeroupper

	RET

SYM_FUNC_END(sha256_transform_rorx)