old_dst 1909 include/net/sock.h struct dst_entry *old_dst; old_dst 1913 include/net/sock.h old_dst = rcu_dereference_protected(sk->sk_dst_cache, old_dst 1916 include/net/sock.h dst_release(old_dst); old_dst 1922 include/net/sock.h struct dst_entry *old_dst; old_dst 1926 include/net/sock.h old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst); old_dst 1927 include/net/sock.h dst_release(old_dst);