nexthop: Use a dedicated policy for nh_valid_get_del_req()

This function uses the global nexthop policy only to then bounce all
arguments except for NHA_ID. Instead, just create a new policy that
only includes the one allowed attribute.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Petr Machata 2021-01-20 16:44:10 +01:00 • committed by Jakub Kicinski
commit 60f5ad5e19