netdev - [PATCH net-next 08/10] net/smc: avoid a delay by waiting for nothing

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Message-Id: <20181122092643.26820-9-ubraun@linux.ibm.com>
Date:   Thu, 22 Nov 2018 10:26:41 +0100
From:   Ursula Braun <ubraun@...ux.ibm.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        raspl@...ux.ibm.com, ubraun@...ux.ibm.com
Subject: [PATCH net-next 08/10] net/smc: avoid a delay by waiting for nothing

From: Karsten Graul <kgraul@...ux.ibm.com>

When a send failed then don't start to wait for a response in
smc_llc_do_confirm_rkey.

Signed-off-by: Karsten Graul <kgraul@...ux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@...ux.ibm.com>
---
 net/smc/smc_llc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index 9c916c709ca7..132c6a8e49f8 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -651,7 +651,9 @@ int smc_llc_do_confirm_rkey(struct smc_link *link,
 	int rc;
 
 	reinit_completion(&link->llc_confirm_rkey);
-	smc_llc_send_confirm_rkey(link, rmb_desc);
+	rc = smc_llc_send_confirm_rkey(link, rmb_desc);
+	if (rc)
+		return rc;
 	/* receive CONFIRM RKEY response from server over RoCE fabric */
 	rc = wait_for_completion_interruptible_timeout(&link->llc_confirm_rkey,
 						       SMC_LLC_WAIT_TIME);
-- 
2.16.4