net/mlx5e: replace EINVAL in mlx5e_flower_parse_meta()

The drivers reports EINVAL to userspace through netlink on invalid meta
match. This is confusing since EINVAL is usually reserved for malformed
netlink messages. Replace it by more meaningful codes.

Fixes: 6d65bc6 ("net/mlx5e: Add mlx5e_flower_parse_meta support")
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>

Author: ummakynes

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -2068,21 +2068,21 @@ static int mlx5e_flower_parse_meta(struct net_device *filter_dev,
 	flow_rule_match_meta(rule, &match);
 	if (match.mask->ingress_ifindex != 0xFFFFFFFF) {
 		NL_SET_ERR_MSG_MOD(extack, "Unsupported ingress ifindex mask");
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	ingress_dev = __dev_get_by_index(dev_net(filter_dev),
 					 match.key->ingress_ifindex);
 	if (!ingress_dev) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can't find the ingress port to match on");
-		return -EINVAL;
+		return -ENOENT;
 	}
 
 	if (ingress_dev != filter_dev) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can't match on the ingress filter port");
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;