On Fri, 19 Jul 2019 13:00:29 +0200, Jiri Pirko wrote:
> diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
> index 1fa30d514e3f..68ad12a7fc4d 100644
> --- a/net/core/rtnetlink.c
> +++ b/net/core/rtnetlink.c
> @@ -1793,6 +1793,8 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1]
> = {
> [IFLA_MAX_MTU] = { .type = NLA_U32 },
> [IFLA_ALT_IFNAME_MOD] = { .type = NLA_STRING,
> .len = ALTIFNAMSIZ - 1 },
> + [IFLA_ALT_IFNAME] = { .type = NLA_STRING,
> + .len = ALTIFNAMSIZ - 1 },
What's the disadvantage of just letting IFLA_IFNAME to get longer
on input? Is it just that the handling would be asymmetrical?
> };
>
> static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
