Mailing List Archive

This driver currently doesn't support any control flags.

Use flow_rule_match_has_control_flags() to check for control flags,
such as can be set through `tc flower ... ip_flags frag`.

In case any control flags are masked, flow_rule_match_has_control_flags()
sets a NL extended error message, and we return -EOPNOTSUPP.

Only compile-tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
index b6a534a3e0b1..701a87370737 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
@@ -33,6 +33,9 @@ static int dpaa2_switch_flower_parse_key(struct flow_cls_offload *cls,
acl_h = &acl_key->match;
acl_m = &acl_key->mask;

+ if (flow_rule_match_has_control_flags(rule, extack))
+ return -EOPNOTSUPP;
+
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
struct flow_match_basic match;

@@ -548,6 +551,9 @@ static int dpaa2_switch_flower_parse_mirror_key(struct flow_cls_offload *cls,
return -EOPNOTSUPP;
}

+ if (flow_rule_match_has_control_flags(rule, extack))
+ return -EOPNOTSUPP;
+
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
struct flow_match_vlan match;

--
2.43.0