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Message-ID: <20240411105302.112091-4-ast@fiberby.net>
Date: Thu, 11 Apr 2024 10:52:56 +0000
From: Asbjørn Sloth Tønnesen <ast@...erby.net>
To: netdev@...r.kernel.org
Cc: Asbjørn Sloth Tønnesen <ast@...erby.net>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	linux-kernel@...r.kernel.org,
	Louis Peens <louis.peens@...igine.com>,
	Yanguo Li <yanguo.li@...igine.com>,
	oss-drivers@...igine.com,
	Taras Chornyi <taras.chornyi@...ision.eu>,
	Woojung Huh <woojung.huh@...rochip.com>,
	UNGLinuxDriver@...rochip.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 v3 3/4] net: prestera: 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/ethernet/marvell/prestera/prestera_flower.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
index 8b9455d8a4f7a..418101a931490 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
@@ -229,6 +229,10 @@ static int prestera_flower_parse(struct prestera_flow_block *block,
 
 		flow_rule_match_control(f_rule, &match);
 		addr_type = match.key->addr_type;
+
+		if (flow_rule_has_control_flags(match.mask->flags,
+						f->common.extack))
+			return -EOPNOTSUPP;
 	}
 
 	if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_BASIC)) {
-- 
2.43.0


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