netdev - [PATCH v3 net-next 1/2] net: ocelot: remove "bridge" argument from ocelot_get_bridge_fwd

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Date:   Thu, 25 Nov 2021 14:58:07 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>
Subject: [PATCH v3 net-next 1/2] net: ocelot: remove "bridge" argument from ocelot_get_bridge_fwd_mask

The only called takes ocelot_port->bridge and passes it as the "bridge"
argument to this function, which then compares it with
ocelot_port->bridge. This is not useful.

Instead, we would like this function to return 0 if ocelot_port->bridge
is not present, which is what this patch does.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
v2->v3: patch is new

 drivers/net/ethernet/mscc/ocelot.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 95920668feb0..26feb030d1a6 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1542,15 +1542,18 @@ static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond,
 	return mask;
 }
 
-static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot, int src_port,
-				      struct net_device *bridge)
+static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot, int src_port)
 {
 	struct ocelot_port *ocelot_port = ocelot->ports[src_port];
+	const struct net_device *bridge;
 	u32 mask = 0;
 	int port;
 
-	if (!ocelot_port || ocelot_port->bridge != bridge ||
-	    ocelot_port->stp_state != BR_STATE_FORWARDING)
+	if (!ocelot_port || ocelot_port->stp_state != BR_STATE_FORWARDING)
+		return 0;
+
+	bridge = ocelot_port->bridge;
+	if (!bridge)
 		return 0;
 
 	for (port = 0; port < ocelot->num_phys_ports; port++) {
@@ -1617,10 +1620,9 @@ void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot)
 			mask = GENMASK(ocelot->num_phys_ports - 1, 0);
 			mask &= ~cpu_fwd_mask;
 		} else if (ocelot_port->bridge) {
-			struct net_device *bridge = ocelot_port->bridge;
 			struct net_device *bond = ocelot_port->bond;
 
-			mask = ocelot_get_bridge_fwd_mask(ocelot, port, bridge);
+			mask = ocelot_get_bridge_fwd_mask(ocelot, port);
 			mask |= cpu_fwd_mask;
 			mask &= ~BIT(port);
 			if (bond) {
-- 
2.25.1