From: Stefan Raspl <raspl@linux.ibm.com>
Subject: smc: no update for unused sk_write_pending
Patch-mainline: v4.16-rc1
Git-commit: 4bd3e7fbfadcd284b1582a284d076afebbe3479d
References: FATE#325694, LTC#167874, bsc#1113480

Summary:     net/smc: SMC-R MVP
Description: Add latest upstream patches to push SMC-R to the MVP level

Upstream-Description:

             smc: no update for unused sk_write_pending

             The smc code never checks the sk_write_pending sock field.
             Thus there is no need to update it.

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

Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 net/smc/smc_tx.c |    2 --
 1 file changed, 2 deletions(-)

--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -103,14 +103,12 @@ static int smc_tx_wait_memory(struct smc
 		if (atomic_read(&conn->sndbuf_space))
 			break; /* at least 1 byte of free space available */
 		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
-		sk->sk_write_pending++;
 		sk_wait_event(sk, &timeo,
 			      sk->sk_err ||
 			      (sk->sk_shutdown & SEND_SHUTDOWN) ||
 			      smc_cdc_rxed_any_close_or_senddone(conn) ||
 			      atomic_read(&conn->sndbuf_space),
 			      &wait);
-		sk->sk_write_pending--;
 	}
 	remove_wait_queue(sk_sleep(sk), &wait);
 	return rc;