diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-08-23 20:39:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-24 08:23:50 +0200 |
| commit | 6a6ad2a4e57bc907a6977eef6cad49348ad2744b (patch) | |
| tree | a3e8a7d9cefa9d2a975b422015e7b375d336e8f2 | |
| parent | net: diag: support SOCK_DESTROY for UDP sockets (diff) | |
| download | linux-6a6ad2a4e57bc907a6977eef6cad49348ad2744b.tar.xz linux-6a6ad2a4e57bc907a6977eef6cad49348ad2744b.zip | |
ipv6: udp: remove udp_v6_clear_sk()
Now RCU lookups of ipv6 udp sockets no longer dereference
pinet6 field, we can get rid of udp_v6_clear_sk() helper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/udp.c | 12 | ||||
| -rw-r--r-- | net/ipv6/udp_impl.h | 2 | ||||
| -rw-r--r-- | net/ipv6/udplite.c | 2 |
3 files changed, 1 insertions, 15 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 16512cf06e73..9efe740ff6dd 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1424,17 +1424,6 @@ void udp6_proc_exit(struct net *net) } #endif /* CONFIG_PROC_FS */ -void udp_v6_clear_sk(struct sock *sk, int size) -{ - struct inet_sock *inet = inet_sk(sk); - - /* we do not want to clear pinet6 field, because of RCU lookups */ - sk_prot_clear_portaddr_nulls(sk, offsetof(struct inet_sock, pinet6)); - - size -= offsetof(struct inet_sock, pinet6) + sizeof(inet->pinet6); - memset(&inet->pinet6 + 1, 0, size); -} - /* ------------------------------------------------------------------------ */ struct proto udpv6_prot = { @@ -1466,7 +1455,6 @@ struct proto udpv6_prot = { .compat_setsockopt = compat_udpv6_setsockopt, .compat_getsockopt = compat_udpv6_getsockopt, #endif - .clear_sk = udp_v6_clear_sk, .diag_destroy = udp_abort, }; diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h index 0682c031ccdc..f6eb1ab34f4b 100644 --- a/net/ipv6/udp_impl.h +++ b/net/ipv6/udp_impl.h @@ -29,8 +29,6 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb); void udpv6_destroy_sock(struct sock *sk); -void udp_v6_clear_sk(struct sock *sk, int size); - #ifdef CONFIG_PROC_FS int udp6_seq_show(struct seq_file *seq, void *v); #endif diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c index 9cf097e206e9..118057a5b759 100644 --- a/net/ipv6/udplite.c +++ b/net/ipv6/udplite.c @@ -56,7 +56,7 @@ struct proto udplitev6_prot = { .compat_setsockopt = compat_udpv6_setsockopt, .compat_getsockopt = compat_udpv6_getsockopt, #endif - .clear_sk = udp_v6_clear_sk, + .clear_sk = sk_prot_clear_portaddr_nulls, }; static struct inet_protosw udplite6_protosw = { |