[PATCH net-next] sfc: use flow_rule_no_unsupp_control_flags()

["Asbjørn Sloth Tønnesen" <ast@fiberby.net>]

Adopt nfp-style *_FLOWER_SUPPORTED_CTLFLAGS define.

Change the check for unsupported control flags, to use the new helper
flow_rule_is_supp_control_flags().

Since the helper was based on sfc, then nothing really changes.

Compile-tested, and compiled objects are identical.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
---
 drivers/net/ethernet/sfc/tc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tc.c b/drivers/net/ethernet/sfc/tc.c
index 82e8891a619a..5f73f1dea524 100644
--- a/drivers/net/ethernet/sfc/tc.c
+++ b/drivers/net/ethernet/sfc/tc.c
@@ -21,6 +21,10 @@
 #include "ef100_rep.h"
 #include "efx.h"
 
+#define SFC_FLOWER_SUPPORTED_CTLFLAGS \
+	(FLOW_DIS_IS_FRAGMENT | \
+	 FLOW_DIS_FIRST_FRAG)
+
 enum efx_encap_type efx_tc_indr_netdev_type(struct net_device *net_dev)
 {
 	if (netif_is_vxlan(net_dev))
@@ -273,11 +277,9 @@ static int efx_tc_flower_parse_match(struct efx_nic *efx,
 			match->value.ip_firstfrag = fm.key->flags & FLOW_DIS_FIRST_FRAG;
 			match->mask.ip_firstfrag = true;
 		}
-		if (fm.mask->flags & ~(FLOW_DIS_IS_FRAGMENT | FLOW_DIS_FIRST_FRAG)) {
-			NL_SET_ERR_MSG_FMT_MOD(extack, "Unsupported match on control.flags %#x",
-					       fm.mask->flags);
+		if (!flow_rule_is_supp_control_flags(SFC_FLOWER_SUPPORTED_CTLFLAGS,
+						     fm.mask->flags, extack))
 			return -EOPNOTSUPP;
-		}
 	}
 	if (dissector->used_keys &
 	    ~(BIT_ULL(FLOW_DISSECTOR_KEY_CONTROL) |
-- 
2.43.0