[PATCH] examples/l3fwd-acl:memset the acl matching result array

[Ananyev, Konstantin]

> If we don't memset acl result array before matching,
> we can get arbitrary dirty data from memory.

I don't think it is the case.
acl_classify() on successful completion will always populate result array.
The only exception - user provided ivalid input parameters, or acl ctx is not build, etc.
So no need to do memset() here.
 
> Signed-off-by: Zhiheng Chen <chenzhiheng0227 at gmail.com>
> ---
>  examples/l3fwd-acl/main.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
> index 1fb1807235..7b9539b3ca 100644
> --- a/examples/l3fwd-acl/main.c
> +++ b/examples/l3fwd-acl/main.c
> @@ -738,6 +738,9 @@ prepare_acl_parameter(struct rte_mbuf **pkts_in, struct acl_search_t *acl,
>  	acl->num_ipv4 = 0;
>  	acl->num_ipv6 = 0;
> 
> +	memset(acl->res_ipv4, 0, sizeof(acl->res_ipv4));
> +	memset(acl->res_ipv6, 0, sizeof(acl->res_ipv6));
> +
>  	/* Prefetch first packets */
>  	for (i = 0; i < PREFETCH_OFFSET && i < nb_rx; i++) {
>  		rte_prefetch0(rte_pktmbuf_mtod(
> --
> 2.32.0