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tcp: md5: constify tcp_md5_do_lookup() socket argument

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When TCP new listener is done, these functions will be called
without socket lock being held. Make sure they don't change
anything.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2015-09-25 07:39:15 -07:00
committed by David S. Miller
parent 4e3f5d727d
commit b83e3deb97
3 changed files with 10 additions and 10 deletions
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6
net/ipv4/tcp_ipv4.c
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@@ -865,7 +865,7 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req)
*/
/* Find the Key structure for an address. */
struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
struct tcp_md5sig_key *tcp_md5_do_lookup(const struct sock *sk,
const union tcp_md5_addr *addr,
int family)
{
@@ -877,7 +877,7 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
/* caller either holds rcu_read_lock() or socket lock */
md5sig = rcu_dereference_check(tp->md5sig_info,
sock_owned_by_user(sk) ||
lockdep_is_held(&sk->sk_lock.slock));
lockdep_is_held((spinlock_t *)&sk->sk_lock.slock));
if (!md5sig)
return NULL;
#if IS_ENABLED(CONFIG_IPV6)
@@ -894,7 +894,7 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
}
EXPORT_SYMBOL(tcp_md5_do_lookup);
struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk,
struct tcp_md5sig_key *tcp_v4_md5_lookup(const struct sock *sk,
const struct sock *addr_sk)
{
const union tcp_md5_addr *addr;