linux-kernel - Re: [PATCH 1/1] netfilter: conntrack: mark UDP zero checksum as CHECKSUM

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Message-ID: <20220115143930.GA23292@breakpoint.cc>
Date:   Sat, 15 Jan 2022 15:39:30 +0100
From:   Florian Westphal <fw@...len.de>
To:     Kevin Mitchell <kevmitch@...sta.com>
Cc:     Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] netfilter: conntrack: mark UDP zero checksum as
 CHECKSUM_UNNECESSARY

Kevin Mitchell <kevmitch@...sta.com> wrote:
> The udp_error function verifies the checksum of incoming UDP packets if
> one is set. This has the desirable side effect of setting skb->ip_summed
> to CHECKSUM_COMPLETE, signalling that this verification need not be
> repeated further up the stack.

Acked-by: Florian Westphal <fw@...len.de>