patch 'net/nfb: fix array indexes in deinit functions' has been queued to stable release 19.11.12

[christian.ehrhardt@canonical.com]

Hi,

FYI, your patch has been queued to stable release 19.11.12

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/11/22. 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/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/2294078fe8a8024a3728e826d9e605967184a318

Thanks.

Christian Ehrhardt <christian.ehrhardt@canonical.com>

---
From 2294078fe8a8024a3728e826d9e605967184a318 Mon Sep 17 00:00:00 2001
From: Martin Spinler <spinler@cesnet.cz>
Date: Tue, 15 Feb 2022 13:55:39 +0100
Subject: [PATCH] net/nfb: fix array indexes in deinit functions

[ upstream commit 8a4c8edb1154a58bad807cdc2ca947773e2ee8f1 ]

The indexes in the for cycle were wrongly used and
the code accessed outside of the rxmac/txmac array.

Fixes: 6435f9a0ac22 ("net/nfb: add new netcope driver")

Signed-off-by: Martin Spinler <spinler@cesnet.cz>
---
 drivers/net/nfb/nfb_ethdev.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/nfb/nfb_ethdev.c b/drivers/net/nfb/nfb_ethdev.c
index 341b57edb4..697d4af1c3 100644
--- a/drivers/net/nfb/nfb_ethdev.c
+++ b/drivers/net/nfb/nfb_ethdev.c
@@ -77,9 +77,10 @@ static void
 nfb_nc_rxmac_deinit(struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC],
 	uint16_t max_rxmac)
 {
-	for (; max_rxmac > 0; --max_rxmac) {
-		nc_rxmac_close(rxmac[max_rxmac]);
-		rxmac[max_rxmac] = NULL;
+	uint16_t i;
+	for (i = 0; i < max_rxmac; i++) {
+		nc_rxmac_close(rxmac[i]);
+		rxmac[i] = NULL;
 	}
 }
 
@@ -95,9 +96,10 @@ static void
 nfb_nc_txmac_deinit(struct nc_txmac *txmac[RTE_MAX_NC_TXMAC],
 	uint16_t max_txmac)
 {
-	for (; max_txmac > 0; --max_txmac) {
-		nc_txmac_close(txmac[max_txmac]);
-		txmac[max_txmac] = NULL;
+	uint16_t i;
+	for (i = 0; i < max_txmac; i++) {
+		nc_txmac_close(txmac[i]);
+		txmac[i] = NULL;
 	}
 }
 
-- 
2.35.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-03-09 11:57:44.003615230 +0100
+++ 0012-net-nfb-fix-array-indexes-in-deinit-functions.patch	2022-03-09 11:57:43.336938030 +0100
@@ -1 +1 @@
-From 8a4c8edb1154a58bad807cdc2ca947773e2ee8f1 Mon Sep 17 00:00:00 2001
+From 2294078fe8a8024a3728e826d9e605967184a318 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 8a4c8edb1154a58bad807cdc2ca947773e2ee8f1 ]
+
@@ -10 +11,0 @@
-Cc: stable@dpdk.org
@@ -18 +19 @@
-index 3c39937816..0b27fe78cc 100644
+index 341b57edb4..697d4af1c3 100644