tcp: fix a compile error in DBGUNDO()

If DBGUNDO() is enabled (FASTRETRANS_DEBUG > 1), a compile
error will happen, since inet6_sk(sk)->daddr became sk->sk_v6_daddr

Fixes: efe4208f47f9 ("ipv6: make lookups simpler and faster")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 08323bd95f2a..a756b8749a26 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2329,10 +2329,9 @@ static void DBGUNDO(struct sock *sk, const char *msg)
         }
 #if IS_ENABLED(CONFIG_IPV6)
         else if (sk->sk_family == AF_INET6) {
-                struct ipv6_pinfo *np = inet6_sk(sk);
                 pr_debug("Undo %s %pI6/%u c%u l%u ss%u/%u p%u\n",
                          msg,
-                         &np->daddr, ntohs(inet->inet_dport),
+                         &sk->sk_v6_daddr, ntohs(inet->inet_dport),
                          tp->snd_cwnd, tcp_left_out(tp),
                          tp->snd_ssthresh, tp->prior_ssthresh,
                          tp->packets_out);