Re: [PATCH 6/6] netfilter: nft_set_pipapo_avx2: add missing vzeroupper
Stefano Brivio <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.raid,gmane.linux.kernel.cryptoapi,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.kernel.stable |
|---|---|
| Organization | Red Hat |
| Message-ID | <20260817131749.6e1408bb@elisabeth> |
On Sat, 15 Aug 2026 13:57:50 -0700 Eric Biggers <[email protected]> wrote: > Since pipapo_get_avx2() uses YMM registers, execute vzeroupper before > returning from it. This is needed to avoid degrading the performance of > any later SSE code that may happen to be executed. > > Fixes: 7400b063969b ("nft_set_pipapo: Introduce AVX2-based lookup implementation") > Cc: [email protected] > Cc: Florian Westphal <[email protected]> > Cc: Stefano Brivio <[email protected]> > Signed-off-by: Eric Biggers <[email protected]> Reviewed-by: Stefano Brivio <[email protected]> -- Stefano