netdev - Re: [PATCH net-next] tcp: add tcp_inet6

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Message-Id: <20190319.141031.2247769646917636316.davem@davemloft.net>
Date:   Tue, 19 Mar 2019 14:10:31 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next] tcp: add tcp_inet6_sk() helper

From: Eric Dumazet <edumazet@...gle.com>
Date: Tue, 19 Mar 2019 07:01:08 -0700

> TCP ipv6 fast path dereferences a pointer to get to the inet6
> part of a tcp socket, but given the fixed memory placement,
> we can do better and avoid a possible cache line miss.
> 
> This also reduces register pressure, since we let the compiler
> know about this memory placement.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.