patch 'net/mlx5: fix build with clang 14' has been queued to stable release 20.11.6

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/22/22. 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/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/06375d5c71ad0349621ad3f711d0f9368e7b083a

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 06375d5c71ad0349621ad3f711d0f9368e7b083a Mon Sep 17 00:00:00 2001
From: Ali Alnubani <alialnu at nvidia.com>
Date: Wed, 11 May 2022 19:41:09 +0300
Subject: [PATCH] net/mlx5: fix build with clang 14
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit bae645a23a41c7656928b742e0418fbf41095202 ]

Use fgets instead of fscanf to resolve the following warning
reported by clang 14.0.0 in Fedora 37 (Rawhide):

drivers/net/mlx5/linux/mlx5_ethdev_os.c:1137:52: error:
  'fscanf' may overflow; destination buffer in argument 3 has size 16,
  but the corresponding specifier may require size 17
  [-Werror,-Wfortify-source]
  ret = fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", port_name);

Fixes: 63d1db710fbc ("net/mlx5: fix unlimited parsing of switch info")

Signed-off-by: Ali Alnubani <alialnu at nvidia.com>
Acked-by: Thomas Monjalon <thomas at monjalon.net>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_ethdev_os.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx5/linux/mlx5_ethdev_os.c b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
index e89d16aace..b15fc7e5e0 100644
--- a/drivers/net/mlx5/linux/mlx5_ethdev_os.c
+++ b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
@@ -1087,7 +1087,6 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
 	bool port_switch_id_set = false;
 	bool device_dir = false;
 	char c;
-	int ret;
 
 	if (!if_indextoname(ifindex, ifname)) {
 		rte_errno = errno;
@@ -1103,10 +1102,9 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
 
 	file = fopen(phys_port_name, "rb");
 	if (file != NULL) {
-		ret = fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", port_name);
-		fclose(file);
-		if (ret == 1)
+		if (fgets(port_name, IF_NAMESIZE, file) != NULL)
 			mlx5_translate_port_name(port_name, &data);
+		fclose(file);
 	}
 	file = fopen(phys_switch_id, "rb");
 	if (file == NULL) {
-- 
2.35.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-07-20 15:01:00.300084372 +0800
+++ 0032-net-mlx5-fix-build-with-clang-14.patch	2022-07-20 15:00:58.731000464 +0800
@@ -1 +1 @@
-From bae645a23a41c7656928b742e0418fbf41095202 Mon Sep 17 00:00:00 2001
+From 06375d5c71ad0349621ad3f711d0f9368e7b083a Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit bae645a23a41c7656928b742e0418fbf41095202 ]
@@ -16 +18,0 @@
-Cc: stable at dpdk.org
@@ -26 +28 @@
-index 8d30ad0994..2a1cf04431 100644
+index e89d16aace..b15fc7e5e0 100644
@@ -29 +31 @@
-@@ -1118,7 +1118,6 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
+@@ -1087,7 +1087,6 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
@@ -37 +39 @@
-@@ -1134,10 +1133,9 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
+@@ -1103,10 +1102,9 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)