[dpdk-stable] patch 'net/i40e: fix unchecked Tx cleanup error' has been queued to LTS release 18.11.7

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/25/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/ef6860fb6586ab2f12c0ac120df0afa953b3883a

Thanks.

Kevin.

---
>From ef6860fb6586ab2f12c0ac120df0afa953b3883a Mon Sep 17 00:00:00 2001
From: Beilei Xing <beilei.xing at intel.com>
Date: Wed, 12 Feb 2020 20:36:01 +0800
Subject: [PATCH] net/i40e: fix unchecked Tx cleanup error

[ upstream commit ba950e62762bd0198e53666ecc2a791767adc137 ]

Coverity complains of unchecked return value warning of
i40e_xmit_cleanup, while this cleanup is opportunistic and will not
cause problems if it fails. So instead of checking the return value of
i40e_xmit_cleanup and return in case of cleanup failure, we directly
cast it to void function to make the Coverity happy.

Coverity issue: 353617
Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Beilei Xing <beilei.xing at intel.com>
Acked-by: Xiaolong Ye <xiaolong.ye at intel.com>
---
 drivers/net/i40e/i40e_rxtx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 1642cf4948..e4a314f4ab 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1053,5 +1053,5 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 	/* Check if the descriptor ring needs to be cleaned. */
 	if (txq->nb_tx_free < txq->tx_free_thresh)
-		i40e_xmit_cleanup(txq);
+		(void)i40e_xmit_cleanup(txq);
 
 	for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
-- 
2.21.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-19 15:43:50.716654569 +0000
+++ 0019-net-i40e-fix-unchecked-Tx-cleanup-error.patch	2020-02-19 15:43:49.765141303 +0000
@@ -1 +1 @@
-From ba950e62762bd0198e53666ecc2a791767adc137 Mon Sep 17 00:00:00 2001
+From ef6860fb6586ab2f12c0ac120df0afa953b3883a Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit ba950e62762bd0198e53666ecc2a791767adc137 ]
+
@@ -14 +15,0 @@
-Cc: stable at dpdk.org
@@ -23 +24 @@
-index fd1ae80da8..f6d23c9fb6 100644
+index 1642cf4948..e4a314f4ab 100644
@@ -26 +27 @@
-@@ -1040,5 +1040,5 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+@@ -1053,5 +1053,5 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)