tcp/dccp: constify rtx_synack() and friends

This is done to make sure we do not change listener socket
while sending SYNACK packets while socket lock is not held.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 87935cad2f7b..ff7ce1e53ed4 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -32,7 +32,7 @@ struct request_sock_ops {
         int             obj_size;
         struct kmem_cache       *slab;
         char            *slab_name;
-        int             (*rtx_syn_ack)(struct sock *sk,
+        int             (*rtx_syn_ack)(const struct sock *sk,
                                        struct request_sock *req);
         void            (*send_ack)(struct sock *sk, struct sk_buff *skb,
                                     struct request_sock *req);