From 4ad096cca942959871d8ff73826d30f81f856f6e Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 5 Apr 2024 20:26:08 -0400 Subject: crypto: x86/nh-avx2 - add missing vzeroupper Since nh_avx2() uses ymm registers, execute vzeroupper before returning from it. This is necessary to avoid reducing the performance of SSE code. Fixes: 0f961f9f670e ("crypto: x86/nhpoly1305 - add AVX2 accelerated NHPoly1305") Signed-off-by: Eric Biggers Acked-by: Tim Chen Signed-off-by: Herbert Xu --- arch/x86/crypto/nh-avx2-x86_64.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/crypto') diff --git a/arch/x86/crypto/nh-avx2-x86_64.S b/arch/x86/crypto/nh-avx2-x86_64.S index ef73a3ab8726..791386d9a83a 100644 --- a/arch/x86/crypto/nh-avx2-x86_64.S +++ b/arch/x86/crypto/nh-avx2-x86_64.S @@ -154,5 +154,6 @@ SYM_TYPED_FUNC_START(nh_avx2) vpaddq T1, T0, T0 vpaddq T4, T0, T0 vmovdqu T0, (HASH) + vzeroupper RET SYM_FUNC_END(nh_avx2) -- cgit v1.2.3