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From: Pavel Begunkov <asml.silence@gmail.com>
To: netdev@vger.kernel.org, "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
David Ahern <dsahern@kernel.org>,
Eric Dumazet <edumazet@google.com>,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
linux-kernel@vger.kernel.org,
Pavel Begunkov <asml.silence@gmail.com>
Subject: [PATCH 04/14] ipv6: clean up cork setup/release
Date: Tue, 11 Jan 2022 01:21:36 +0000 [thread overview]
Message-ID: <1e6f9ddca160b1dc3d81ac32f10ddb302cb216a9.1641863490.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1641863490.git.asml.silence@gmail.com>
A simple cleanup of ip6_setup_cork() and ip6_cork_release() adding a
local variable for v6_cork->opt instead of retyping it many times. It
serves as a preparation patch to make further work cleaner.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
net/ipv6/ip6_output.c | 44 +++++++++++++++++++++----------------------
1 file changed, 21 insertions(+), 23 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4acd577d5ec5..88349e49717a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1354,7 +1354,7 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
{
struct ipv6_pinfo *np = inet6_sk(sk);
unsigned int mtu;
- struct ipv6_txoptions *opt = ipc6->opt;
+ struct ipv6_txoptions *nopt, *opt = ipc6->opt;
/*
* setup for corking
@@ -1363,32 +1363,28 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
if (WARN_ON(v6_cork->opt))
return -EINVAL;
- v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
- if (unlikely(!v6_cork->opt))
+ nopt = v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
+ if (unlikely(!nopt))
return -ENOBUFS;
- v6_cork->opt->tot_len = sizeof(*opt);
- v6_cork->opt->opt_flen = opt->opt_flen;
- v6_cork->opt->opt_nflen = opt->opt_nflen;
+ nopt->tot_len = sizeof(*opt);
+ nopt->opt_flen = opt->opt_flen;
+ nopt->opt_nflen = opt->opt_nflen;
- v6_cork->opt->dst0opt = ip6_opt_dup(opt->dst0opt,
- sk->sk_allocation);
- if (opt->dst0opt && !v6_cork->opt->dst0opt)
+ nopt->dst0opt = ip6_opt_dup(opt->dst0opt, sk->sk_allocation);
+ if (opt->dst0opt && !nopt->dst0opt)
return -ENOBUFS;
- v6_cork->opt->dst1opt = ip6_opt_dup(opt->dst1opt,
- sk->sk_allocation);
- if (opt->dst1opt && !v6_cork->opt->dst1opt)
+ nopt->dst1opt = ip6_opt_dup(opt->dst1opt, sk->sk_allocation);
+ if (opt->dst1opt && !nopt->dst1opt)
return -ENOBUFS;
- v6_cork->opt->hopopt = ip6_opt_dup(opt->hopopt,
- sk->sk_allocation);
- if (opt->hopopt && !v6_cork->opt->hopopt)
+ nopt->hopopt = ip6_opt_dup(opt->hopopt, sk->sk_allocation);
+ if (opt->hopopt && !nopt->hopopt)
return -ENOBUFS;
- v6_cork->opt->srcrt = ip6_rthdr_dup(opt->srcrt,
- sk->sk_allocation);
- if (opt->srcrt && !v6_cork->opt->srcrt)
+ nopt->srcrt = ip6_rthdr_dup(opt->srcrt, sk->sk_allocation);
+ if (opt->srcrt && !nopt->srcrt)
return -ENOBUFS;
/* need source address above miyazawa*/
@@ -1820,11 +1816,13 @@ static void ip6_cork_release(struct inet_cork_full *cork,
struct inet6_cork *v6_cork)
{
if (v6_cork->opt) {
- kfree(v6_cork->opt->dst0opt);
- kfree(v6_cork->opt->dst1opt);
- kfree(v6_cork->opt->hopopt);
- kfree(v6_cork->opt->srcrt);
- kfree(v6_cork->opt);
+ struct ipv6_txoptions *opt = v6_cork->opt;
+
+ kfree(opt->dst0opt);
+ kfree(opt->dst1opt);
+ kfree(opt->hopopt);
+ kfree(opt->srcrt);
+ kfree(opt);
v6_cork->opt = NULL;
}
--
2.34.1
next prev parent reply other threads:[~2022-01-11 1:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 1:21 [PATCH 00/14] udp optimisation Pavel Begunkov
2022-01-11 1:21 ` [PATCH 01/14] ipv6: optimise dst referencing Pavel Begunkov
2022-01-11 1:21 ` [PATCH 02/14] ipv6: shuffle up->pending AF_INET bits Pavel Begunkov
2022-01-11 1:21 ` [PATCH 03/14] ipv6: remove daddr temp buffer in __ip6_make_skb Pavel Begunkov
2022-01-11 1:21 ` Pavel Begunkov [this message]
2022-01-11 1:21 ` [PATCH 05/14] ipv6: don't zero cork's flowi after use Pavel Begunkov
2022-01-11 1:21 ` [PATCH 06/14] ipv6: pass full cork into __ip6_append_data() Pavel Begunkov
2022-01-11 1:21 ` [PATCH 07/14] ipv6: pass flow in ip6_make_skb together with cork Pavel Begunkov
2022-01-11 1:21 ` [PATCH 08/14] ipv6/udp: don't make extra copies of iflow Pavel Begunkov
2022-01-11 1:21 ` [PATCH 09/14] ipv6: hand dst refs to cork setup Pavel Begunkov
2022-01-11 15:39 ` Willem de Bruijn
2022-01-11 15:57 ` Pavel Begunkov
2022-01-11 17:11 ` Paolo Abeni
2022-01-11 20:39 ` Pavel Begunkov
2022-01-12 11:15 ` Paolo Abeni
2022-01-12 16:49 ` Pavel Begunkov
2022-01-11 1:21 ` [PATCH 10/14] skbuff: drop zero check from skb_zcopy_set Pavel Begunkov
2022-01-11 1:21 ` [PATCH 11/14] skbuff: drop null check from skb_zcopy Pavel Begunkov
2022-01-11 1:21 ` [PATCH 12/14] skbuff: optimise alloc_skb_with_frags() Pavel Begunkov
2022-01-11 1:21 ` [PATCH 13/14] net: inline part of skb_csum_hwoffload_help Pavel Begunkov
2022-01-11 9:24 ` David Laight
2022-01-11 16:59 ` Pavel Begunkov
2022-01-11 17:25 ` David Laight
2022-01-11 20:48 ` Pavel Begunkov
2022-01-12 2:41 ` David Laight
2022-01-12 16:43 ` Pavel Begunkov
2022-01-11 1:21 ` [PATCH 14/14] net: inline sock_alloc_send_skb Pavel Begunkov
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