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| author | RongQing.Li <roy.qing.li@gmail.com> | 2012-07-01 17:18:59 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-05 03:11:15 -0700 |
| commit | 43264e0bd96304092062c013b0612cc944508288 (patch) | |
| tree | 49f253e1ca2afa4829f19bad3e9eaf05e412c97a /net/ipv6 | |
| parent | 30e80b55dd250b17c2570e234d2be34a0718063e (diff) | |
| download | linux-43264e0bd96304092062c013b0612cc944508288.tar.gz | |
ipv6: remove unnecessary codes in tcp_ipv6.c
opt always equals np->opts, so it is meaningless to define opt, and check if opt does not equal np->opts and then try to free opt. Signed-off-by: RongQing.Li <roy.qing.li@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 9c06eafaf695..6cc67ed6c2e6 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -486,7 +486,6 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst, struct inet6_request_sock *treq = inet6_rsk(req); struct ipv6_pinfo *np = inet6_sk(sk); struct sk_buff * skb; - struct ipv6_txoptions *opt = np->opt; int err = -ENOMEM; /* First, grab a route. */ @@ -500,13 +499,11 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst, fl6->daddr = treq->rmt_addr; skb_set_queue_mapping(skb, queue_mapping); - err = ip6_xmit(sk, skb, fl6, opt, np->tclass); + err = ip6_xmit(sk, skb, fl6, np->opt, np->tclass); err = net_xmit_eval(err); } done: - if (opt && opt != np->opt) - sock_kfree_s(sk, opt, opt->tot_len); return err; } @@ -1229,7 +1226,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, struct inet_sock *newinet; struct tcp_sock *newtp; struct sock *newsk; - struct ipv6_txoptions *opt; #ifdef CONFIG_TCP_MD5SIG struct tcp_md5sig_key *key; #endif @@ -1290,7 +1286,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, } treq = inet6_rsk(req); - opt = np->opt; if (sk_acceptq_is_full(sk)) goto out_overflow; @@ -1359,11 +1354,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, but we make one more one thing there: reattach optmem to newsk. */ - if (opt) { - newnp->opt = ipv6_dup_options(newsk, opt); - if (opt != np->opt) - sock_kfree_s(sk, opt, opt->tot_len); - } + if (np->opt) + newnp->opt = ipv6_dup_options(newsk, np->opt); inet_csk(newsk)->icsk_ext_hdr_len = 0; if (newnp->opt) @@ -1410,8 +1402,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, out_overflow: NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS); out_nonewsk: - if (opt && opt != np->opt) - sock_kfree_s(sk, opt, opt->tot_len); dst_release(dst); out: NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS); |