[PATCH] net/mlx5: fix build with clang 14

[Bruce Richardson]

On Wed, May 18, 2022 at 11:11:00AM +0200, David Marchand wrote:
> clang 14 raises the following warning:
> 
> ../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);
> 
> Extend port_name so that it can fit a null terminated string.
> 
> Fixes: 63d1db710fbc ("net/mlx5: fix unlimited parsing of switch info")
> Fixes: 1256805dd54d ("net/mlx5: move Linux-specific functions")
> Cc: stable at dpdk.org
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---
>  drivers/net/mlx5/linux/mlx5_ethdev_os.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
Seeing this error with Ubuntu 22.04, and this patch fixes the issue.

Tested-by: Bruce Richardson <bruce.richardson at intel.com>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>