net: dsa: sja1105: flower: validate control flags
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> Link: https://lore.kernel.org/r/20240417144413.104257-1-ast@fiberby.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -214,6 +214,9 @@ static int sja1105_flower_parse_key(struct sja1105_private *priv,
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return -EOPNOTSUPP;
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}
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if (flow_rule_match_has_control_flags(rule, extack))
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return -EOPNOTSUPP;
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if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
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struct flow_match_basic match;
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