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Message-ID: <bed89145-c9a5-ba76-2446-dee8cd35c7da@gmail.com>
Date: Thu, 4 Nov 2021 09:44:26 -0700
From: Eric Dumazet <eric.dumazet@...il.com>
To: Nghia Le <nghialm78@...il.com>, edumazet@...gle.com,
davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
kuba@...nel.org, ast@...nel.org, daniel@...earbox.net,
andrii@...nel.org, kafai@...com, songliubraving@...com, yhs@...com,
john.fastabend@...il.com, kpsingh@...nel.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
bpf@...r.kernel.org, kernel-janitors@...r.kernel.org,
lukas.bulwahn@...il.com
Subject: Re: [PATCH] ipv6: remove useless assignment to newinet in
tcp_v6_syn_recv_sock()
On 11/4/21 7:37 AM, Nghia Le wrote:
> The newinet value is initialized with inet_sk() in a block code to
> handle sockets for the ETH_P_IP protocol. Along this code path,
> newinet is never read. Thus, assignment to newinet is needless and
> can be removed.
>
> Signed-off-by: Nghia Le <nghialm78@...il.com>
> ---
> net/ipv6/tcp_ipv6.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
> index 2cc9b0e53ad1..551fce49841d 100644
> --- a/net/ipv6/tcp_ipv6.c
> +++ b/net/ipv6/tcp_ipv6.c
> @@ -1263,7 +1263,6 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
>
> inet_sk(newsk)->pinet6 = tcp_inet6_sk(newsk);
>
> - newinet = inet_sk(newsk);
> newnp = tcp_inet6_sk(newsk);
> newtp = tcp_sk(newsk);
>
>
Reviewed-by: Eric Dumazet <edumazet@...gle.com>
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