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Date: Mon,  8 Apr 2024 13:09:24 +0000
From: Asbjørn Sloth Tønnesen <ast@...erby.net>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Louis Peens <louis.peens@...igine.com>,
	Taras Chornyi <taras.chornyi@...ision.eu>,
	Woojung Huh <woojung.huh@...rochip.com>,
	UNGLinuxDriver@...rochip.com
Cc: Asbjørn Sloth Tønnesen <ast@...erby.net>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Yanguo Li <yanguo.li@...igine.com>,
	oss-drivers@...igine.com,
	Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	Vladimir Oltean <olteanv@...il.com>,
	Edward Cree <ecree.xilinx@...il.com>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Cong Wang <xiyou.wangcong@...il.com>,
	Jiri Pirko <jiri@...nulli.us>
Subject: [PATCH net-next 6/6] net: dsa: microchip: ksz9477: flower: validate control flags

Add check for unsupported control flags.

Only compile-tested, no access to HW.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@...erby.net>
---
 drivers/net/dsa/microchip/ksz9477_tc_flower.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/microchip/ksz9477_tc_flower.c b/drivers/net/dsa/microchip/ksz9477_tc_flower.c
index 8b2f5be667e01..4823a876ad8ab 100644
--- a/drivers/net/dsa/microchip/ksz9477_tc_flower.c
+++ b/drivers/net/dsa/microchip/ksz9477_tc_flower.c
@@ -124,6 +124,9 @@ static int ksz9477_flower_parse_key(struct ksz_device *dev, int port,
 		return -EOPNOTSUPP;
 	}
 
+	if (!flow_rule_match_no_control_flags(rule, extack))
+		return -EOPNOTSUPP;
+
 	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC) ||
 	    flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
 		ret = ksz9477_flower_parse_key_l2(dev, port, extack, rule,
-- 
2.43.0


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