diff options
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index eec814fe53b8..82018bdce863 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -93,12 +93,13 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(const struct sock *sk, /* Helper returning the inet6 address from a given tcp socket. * It can be used in TCP stack instead of inet6_sk(sk). * This avoids a dereference and allow compiler optimizations. + * It is a specialized version of inet6_sk_generic(). */ static struct ipv6_pinfo *tcp_inet6_sk(const struct sock *sk) { - struct tcp6_sock *tcp6 = container_of(tcp_sk(sk), struct tcp6_sock, tcp); + unsigned int offset = sizeof(struct tcp6_sock) - sizeof(struct ipv6_pinfo); - return &tcp6->inet6; + return (struct ipv6_pinfo *)(((u8 *)sk) + offset); } static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb) |