tcp: md5: hide unused variable
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>
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@ -907,7 +907,6 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(const struct sock *sk,
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{
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const struct tcp_sock *tp = tcp_sk(sk);
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struct tcp_md5sig_key *key;
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unsigned int size = sizeof(struct in_addr);
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const struct tcp_md5sig_info *md5sig;
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__be32 mask;
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struct tcp_md5sig_key *best_match = NULL;
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@ -918,10 +917,7 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(const struct sock *sk,
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lockdep_sock_is_held(sk));
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if (!md5sig)
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return NULL;
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#if IS_ENABLED(CONFIG_IPV6)
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if (family == AF_INET6)
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size = sizeof(struct in6_addr);
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#endif
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hlist_for_each_entry_rcu(key, &md5sig->head, node) {
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if (key->family != family)
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continue;
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