From: Ali Alnubani <alialnu@nvidia.com>
To: <dev@dpdk.org>
Cc: <michaelba@mellanox.com>, <stable@dpdk.org>
Subject: [PATCH] net/mlx5: fix build with clang 14
Date: Wed, 11 May 2022 16:58:15 +0300 [thread overview]
Message-ID: <20220511135815.1564053-1-alialnu@nvidia.com> (raw)
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")
Cc: michaelba@mellanox.com
Cc: stable@dpdk.org
Signed-off-by: Ali Alnubani <alialnu@nvidia.com>
---
drivers/net/mlx5/linux/mlx5_ethdev_os.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/mlx5/linux/mlx5_ethdev_os.c b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
index 8fe73f1adb..3d28597e7b 100644
--- a/drivers/net/mlx5/linux/mlx5_ethdev_os.c
+++ b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
@@ -1118,7 +1118,7 @@ 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;
+ char *ret;
if (!if_indextoname(ifindex, ifname)) {
rte_errno = errno;
@@ -1134,9 +1134,9 @@ 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);
+ ret = fgets(port_name, IF_NAMESIZE, file);
fclose(file);
- if (ret == 1)
+ if (ret != NULL)
mlx5_translate_port_name(port_name, &data);
}
file = fopen(phys_switch_id, "rb");
--
2.25.1
next reply other threads:[~2022-05-11 13:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 13:58 Ali Alnubani [this message]
2022-05-11 14:04 ` David Marchand
2022-05-11 16:41 ` [PATCH v2] " Ali Alnubani
2022-06-15 8:16 ` Thomas Monjalon
2022-06-15 8:41 ` David Marchand
2022-06-15 8:21 ` Slava Ovsiienko
2022-06-15 10:08 ` Raslan Darawsheh
2022-05-18 9:11 [PATCH] " David Marchand
2022-06-10 13:54 ` Bruce Richardson
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