[PATCH] app/testpmd: fix lcore ID restriction

[Stephen Hemminger]

On Mon, 15 Apr 2024 19:46:31 +0000
Sivaprasad Tummala <sivaprasad.tummala at amd.com> wrote:

> +				nb_fwd_lcores = (lcoreid_t) n;

This should really be using strtoul() not atoi() because it offers
more error checking.