patch 'net/nfb: fix array indexes in deinit functions' has been queued to stable release 20.11.5

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/02/22. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/aa27fa7968f1890e3f6679dd8310aa15ce0eb27a

Thanks.

Luca Boccassi

---
>From aa27fa7968f1890e3f6679dd8310aa15ce0eb27a Mon Sep 17 00:00:00 2001
From: Martin Spinler <spinler at 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 at 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 c55bcdf1ef..d7c0879ef5 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;
 	}
 }
 
-- 
2.30.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-28 21:17:55.674850674 +0000
+++ 0021-net-nfb-fix-array-indexes-in-deinit-functions.patch	2022-02-28 21:17:53.864929757 +0000
@@ -1 +1 @@
-From 8a4c8edb1154a58bad807cdc2ca947773e2ee8f1 Mon Sep 17 00:00:00 2001
+From aa27fa7968f1890e3f6679dd8310aa15ce0eb27a Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 8a4c8edb1154a58bad807cdc2ca947773e2ee8f1 ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org
@@ -18 +19 @@
-index 3c39937816..0b27fe78cc 100644
+index c55bcdf1ef..d7c0879ef5 100644