net/smc: handle sockopt TCP_DEFER_ACCEPT

If sockopt TCP_DEFER_ACCEPT is set, the accept is delayed till
data is available.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/smc/smc.h b/net/smc/smc.h
index e4829a2f46ba..2405e889b93d 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -180,6 +180,10 @@ struct smc_sock {				/* smc sock container */
         struct list_head        accept_q;       /* sockets to be accepted */
         spinlock_t              accept_q_lock;  /* protects accept_q */
         bool                    use_fallback;   /* fallback to tcp */
+        int                     sockopt_defer_accept;
+                                                /* sockopt TCP_DEFER_ACCEPT
+                                                 * value
+                                                 */
         u8                      wait_close_tx_prepared : 1;
                                                 /* shutdown wr or close
                                                  * started, waiting for unsent