[PATCH 0/6] x86: add missing vzeroupper instructions
Eric Biggers <[email protected]>
| Newsgroups | org.kernel.vger.linux-raid,org.kernel.vger.linux-crypto,org.kernel.vger.linux-kernel,org.kernel.vger.netfilter-devel |
|---|---|
| Message-ID | <[email protected]> |
Assembly code using YMM or ZMM registers is supposed to end with the vzeroupper instruction in order to avoid degrading the performance of any later SSE code. Since this only affects performance and not correctness, it is sometimes overlooked. Most kernel code does it correctly, but a few cases were missed. This series fixes them. It should be easiest to take the full series through the x86 tree. Eric Biggers (6): xor: add missing vzeroupper to AVX code raid6: add missing vzeroupper to AVX2 code raid6: add missing vzeroupper to AVX-512 code crypto: x86/aria - add missing vzeroupper in AVX2 code crypto: x86/aria - add missing vzeroupper in AVX-512 code netfilter: nft_set_pipapo_avx2: add missing vzeroupper arch/x86/crypto/aria-aesni-avx2-asm_64.S | 6 ++++++ arch/x86/crypto/aria-gfni-avx512-asm_64.S | 3 +++ lib/raid/raid6/x86/avx2.c | 6 ++++++ lib/raid/raid6/x86/avx512.c | 6 ++++++ lib/raid/raid6/x86/recov_avx2.c | 2 ++ lib/raid/raid6/x86/recov_avx512.c | 2 ++ lib/raid/xor/x86/xor-avx.c | 1 + net/netfilter/nft_set_pipapo_avx2.c | 17 ++++++++--------- 8 files changed, 34 insertions(+), 9 deletions(-) base-commit: db2ddb87143519e20a95aa36c60b36107b736a58 -- 2.55.0