[dpdk-stable] patch 'net/qede: limit Rx ring index read for debug' has been queued to LTS release 18.11.6

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/10/19. 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/c0384d31df0a725fc2df7e8cfaf2ba32dc3082ec

Thanks.

Kevin.

---
>From c0384d31df0a725fc2df7e8cfaf2ba32dc3082ec Mon Sep 17 00:00:00 2001
From: David Marchand <david.marchand at redhat.com>
Date: Fri, 27 Sep 2019 13:28:49 +0200
Subject: [PATCH] net/qede: limit Rx ring index read for debug

[ upstream commit ff3555d6849748f84056ba2f517dc50ac5718974 ]

Caught by clang, this idx value is only used for a debug message when
the mbufs allocation fails.
No need to use idx as a temporary storage.

Fixes: 8f2312474529 ("net/qede: fix performance bottleneck in Rx path")

Signed-off-by: David Marchand <david.marchand at redhat.com>
Acked-by: Rasesh Mody <rmody at marvell.com>
---
 drivers/net/qede/qede_rxtx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index ca1305f1b..52ebc8b8b 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -47,6 +47,4 @@ static inline int qede_alloc_rx_bulk_mbufs(struct qede_rx_queue *rxq, int count)
 	uint16_t idx;
 
-	idx = rxq->sw_rx_prod & NUM_RX_BDS(rxq);
-
 	if (count > QEDE_MAX_BULK_ALLOC_COUNT)
 		count = QEDE_MAX_BULK_ALLOC_COUNT;
@@ -57,5 +55,7 @@ static inline int qede_alloc_rx_bulk_mbufs(struct qede_rx_queue *rxq, int count)
 			   "Failed to allocate %d rx buffers "
 			    "sw_rx_prod %u sw_rx_cons %u mp entries %u free %u",
-			    count, idx, rxq->sw_rx_cons & NUM_RX_BDS(rxq),
+			    count,
+			    rxq->sw_rx_prod & NUM_RX_BDS(rxq),
+			    rxq->sw_rx_cons & NUM_RX_BDS(rxq),
 			    rte_mempool_avail_count(rxq->mb_pool),
 			    rte_mempool_in_use_count(rxq->mb_pool));
-- 
2.21.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-12-03 17:29:53.681625068 +0000
+++ 0032-net-qede-limit-Rx-ring-index-read-for-debug.patch	2019-12-03 17:29:51.755749849 +0000
@@ -1 +1 @@
-From ff3555d6849748f84056ba2f517dc50ac5718974 Mon Sep 17 00:00:00 2001
+From c0384d31df0a725fc2df7e8cfaf2ba32dc3082ec Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit ff3555d6849748f84056ba2f517dc50ac5718974 ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index dbb74fc64..fffccf070 100644
+index ca1305f1b..52ebc8b8b 100644