linux-kernel - [PATCH net-next 3/3] net: dsa: ocelot: check policer entry

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Message-ID: <20260126061340.757543-4-mmyangfl@gmail.com>
Date: Mon, 26 Jan 2026 14:13:31 +0800
From: David Yang <mmyangfl@...il.com>
To: netdev@...r.kernel.org
Cc: David Yang <mmyangfl@...il.com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Claudiu Manoil <claudiu.manoil@....com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	UNGLinuxDriver@...rochip.com,
	Andrew Lunn <andrew@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next 3/3] net: dsa: ocelot: check policer entry

rate_bytes_per_sec might be 0, check for it.

Signed-off-by: David Yang <mmyangfl@...il.com>
---
 drivers/net/dsa/ocelot/felix.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 9e5ede932b42..fb2d02ff0fe7 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -2011,6 +2011,10 @@ static int felix_port_policer_add(struct dsa_switch *ds, int port,
 		.burst = policer->burst,
 	};
 
+	if (dsa_mall_policer_tc_entry_type(policer) !=
+	    DSA_MALL_POLICER_TC_KNOWN)
+		return -EOPNOTSUPP;
+
 	return ocelot_port_policer_add(ocelot, port, &pol);
 }
 
-- 
2.51.0