[dpdk-stable] patch 'net/ixgbe: fix warning with GCC 9' has been queued to LTS release 18.11.2

Kevin Traynor ktraynor at redhat.com
Wed May 8 12:15:28 CEST 2019


Hi,

FYI, your patch has been queued to LTS release 18.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/13/19. 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/41be7288e378921fafbfdcee3e53bff4c414d60c

Thanks.

Kevin Traynor

---
>From 41be7288e378921fafbfdcee3e53bff4c414d60c Mon Sep 17 00:00:00 2001
From: Bruce Richardson <bruce.richardson at intel.com>
Date: Wed, 1 May 2019 20:50:11 +0100
Subject: [PATCH] net/ixgbe: fix warning with GCC 9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit e81b0569cc6855fb4d95635d0ae8a749da5d0aed ]

Compiling on Fedora 30, we get the following warning, causing build failure
when Werror flag is set:

../drivers/net/ixgbe/ixgbe_rxtx.c:2141:14: warning:
‘nmb’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 2141 |    rxe->mbuf = nmb;
      |    ~~~~~~~~~~^~~~~

Initializing the value to "NULL" fixes the issue.

Fixes: 8eecb3295aed ("ixgbe: add LRO support")

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 drivers/net/ixgbe/ixgbe_rxtx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 63ca5dccf..46c93f595 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -2030,5 +2030,5 @@ ixgbe_recv_pkts_lro(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts,
 		struct rte_mbuf *first_seg;
 		struct rte_mbuf *rxm;
-		struct rte_mbuf *nmb;
+		struct rte_mbuf *nmb = NULL;
 		union ixgbe_adv_rx_desc rxd;
 		uint16_t data_len;
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-05-08 11:05:08.100843685 +0100
+++ 0046-net-ixgbe-fix-warning-with-GCC-9.patch	2019-05-08 11:05:05.858932154 +0100
@@ -1 +1 @@
-From e81b0569cc6855fb4d95635d0ae8a749da5d0aed Mon Sep 17 00:00:00 2001
+From 41be7288e378921fafbfdcee3e53bff4c414d60c Mon Sep 17 00:00:00 2001
@@ -8,0 +9,2 @@
+[ upstream commit e81b0569cc6855fb4d95635d0ae8a749da5d0aed ]
+
@@ -20 +21,0 @@
-Cc: stable at dpdk.org
@@ -28 +29 @@
-index e71d3c188..1fbc754ae 100644
+index 63ca5dccf..46c93f595 100644


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