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tcp: md5: hide unused variable

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Changing from a memcpy to per-member comparison left the
size variable unused:

net/ipv4/tcp_ipv4.c: In function 'tcp_md5_do_lookup':
net/ipv4/tcp_ipv4.c:910:15: error: unused variable 'size' [-Werror=unused-variable]

This does not show up when CONFIG_IPV6 is enabled, but the
variable can be removed either way, along with the now unused
assignment.

Fixes: 6797318e62 ("tcp: md5: add an address prefix for key lookup")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2017-06-20 22:11:21 +02:00 • committed by David S. Miller
parent e1d20e22dd
commit 083a0326ae
1 changed files with 1 additions and 5 deletions
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6
net/ipv4/tcp_ipv4.c
View file

@ -907,7 +907,6 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(const struct sock *sk,
{
const struct tcp_sock *tp = tcp_sk(sk);
struct tcp_md5sig_key *key;
unsigned int size = sizeof(struct in_addr);
const struct tcp_md5sig_info *md5sig;
__be32 mask;
struct tcp_md5sig_key *best_match = NULL;
@ -918,10 +917,7 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(const struct sock *sk,
lockdep_sock_is_held(sk));
if (!md5sig)
return NULL;
#if IS_ENABLED(CONFIG_IPV6)
if (family == AF_INET6)
size = sizeof(struct in6_addr);
#endif
hlist_for_each_entry_rcu(key, &md5sig->head, node) {
if (key->family != family)
continue;