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Date: Mon, 29 Nov 2021 07:35:23 +0300 From: Nikita Yushchenko <nikita.yushchenko@...tuozzo.com> To: Stefano Brivio <sbrivio@...hat.com>, Pablo Neira Ayuso <pablo@...filter.org> Cc: Florian Westphal <fw@...len.de>, netfilter-devel@...r.kernel.org, netdev@...r.kernel.org, kernel@...nvz.org Subject: Re: [PATCH nf 1/2] nft_set_pipapo: Fix bucket load in AVX2 lookup routine for six 8-bit groups > The sixth byte of packet data has to be looked up in the sixth group, > not in the seventh one, even if we load the bucket data into ymm6 > (and not ymm5, for convenience of tracking stalls). > > Without this fix, matching on a MAC address as first field of a set, > if 8-bit groups are selected (due to a small set size) would fail, > that is, the given MAC address would never match. > > Reported-by: Nikita Yushchenko <nikita.yushchenko@...tuozzo.com> > Cc: <stable@...r.kernel.org> # 5.6.x > Fixes: 7400b063969b ("nft_set_pipapo: Introduce AVX2-based lookup implementation") > Signed-off-by: Stefano Brivio <sbrivio@...hat.com> Tried it. The issue is indeed fixed. Tested-By: Nikita Yushchenko <nikita.yushchenko@...tuozzo.com>
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