Currently, mlxsw only supports the 'ingress_ifindex' field in the
'FLOW_DISSECTOR_KEY_META' key, but subsequent patches are going to add
support for the 'l2_miss' field as well. It is valid to only match on
'l2_miss' without 'ingress_ifindex', so do not force matching on it.

Signed-off-by: Ido Schimmel <[email protected]>
---

Notes:
    v2:
    * New patch.

 drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
index 2b0bae847eb9..9c62c12e410b 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
@@ -290,6 +290,9 @@ mlxsw_sp_flower_parse_meta_iif(struct 
mlxsw_sp_acl_rule_info *rulei,
        struct mlxsw_sp_port *mlxsw_sp_port;
        struct net_device *ingress_dev;
 
+       if (!match->mask->ingress_ifindex)
+               return 0;
+
        if (match->mask->ingress_ifindex != 0xFFFFFFFF) {
                NL_SET_ERR_MSG_MOD(extack, "Unsupported ingress ifindex mask");
                return -EINVAL;
-- 
2.40.1

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