net: constify sk_dst_get() and __sk_dst_get() argument

Both helpers only read fields from their socket argument.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sock.h b/include/net/sock.h
index 56ac1abadea59e6734396a7ef2e22518a0ba80a1..2800d587b08ddc93d7d190ea71dd96a1a3591c1a 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2141,14 +2141,14 @@ static inline bool sk_rethink_txhash(struct sock *sk)
 }
 
 static inline struct dst_entry *
-__sk_dst_get(struct sock *sk)
+__sk_dst_get(const struct sock *sk)
 {
        return rcu_dereference_check(sk->sk_dst_cache,
                                     lockdep_sock_is_held(sk));
 }
 
 static inline struct dst_entry *
-sk_dst_get(struct sock *sk)
+sk_dst_get(const struct sock *sk)
 {
        struct dst_entry *dst;