[dpdk-dev] [PATCH v2] examples/rxtx_callbacks: fix port ID format specifier

[Stephen Hemminger]

On Thu,  6 May 2021 00:51:33 +0300
Dmitry Kozlyuk <dmitry.kozliuk at gmail.com> wrote:

> This fixes -Wformat warning with clang 10.0.0 on Windows.
> 
> Fixes: f8244c6399d9 ("ethdev: increase port id range")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk at gmail.com>
> Acked-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
> ---
> v2: use PRIx16 instead of %u and a cast (Tyler, Thomas).
> 
>  examples/rxtx_callbacks/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/examples/rxtx_callbacks/main.c b/examples/rxtx_callbacks/main.c
> index b57b2fc6bc..ecc2da2d8c 100644
> --- a/examples/rxtx_callbacks/main.c
> +++ b/examples/rxtx_callbacks/main.c
> @@ -329,7 +329,7 @@ main(int argc, char *argv[])
>  	/* initialize all ports */
>  	RTE_ETH_FOREACH_DEV(portid)
>  		if (port_init(portid, mbuf_pool) != 0)
> -			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8"\n",
> +			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIx16"\n",
>  					portid);
>  
>  	if (rte_lcore_count() > 1)

NAK

Just use %u  it works for uint16. Don't start using hex, no other places in
DPDK print port number in hex.