linux-kernel - [PATCH net-next 06/16] net: bridge: Stop calling switchdev_port_attr

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Date:   Fri,  8 Feb 2019 16:32:38 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Ido Schimmel <idosch@...lanox.com>,
        linux-kernel@...r.kernel.org (open list),
        devel@...verdev.osuosl.org (open list:STAGING SUBSYSTEM),
        bridge@...ts.linux-foundation.org (moderated list:ETHERNET BRIDGE),
        jiri@...lanox.com, andrew@...n.ch, vivien.didelot@...il.com
Subject: [PATCH net-next 06/16] net: bridge: Stop calling switchdev_port_attr_get()

Now that all switchdev drivers have been converted to checking the
bridge port flags during the prepare phase of the
switchdev_port_attr_set(), we can move straight to trying to set the
desired flag through SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 net/bridge/br_switchdev.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index db9e8ab96d48..939f300522c5 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -64,29 +64,15 @@ int br_switchdev_set_port_flag(struct net_bridge_port *p,
 {
 	struct switchdev_attr attr = {
 		.orig_dev = p->dev,
-		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
+		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
+		.flags = SWITCHDEV_F_DEFER,
+		.u.brport_flags = flags,
 	};
 	int err;
 
 	if (mask & ~BR_PORT_FLAGS_HW_OFFLOAD)
 		return 0;
 
-	err = switchdev_port_attr_get(p->dev, &attr);
-	if (err == -EOPNOTSUPP)
-		return 0;
-	if (err)
-		return err;
-
-	/* Check if specific bridge flag attribute offload is supported */
-	if (!(attr.u.brport_flags_support & mask)) {
-		br_warn(p->br, "bridge flag offload is not supported %u(%s)\n",
-			(unsigned int)p->port_no, p->dev->name);
-		return -EOPNOTSUPP;
-	}
-
-	attr.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS;
-	attr.flags = SWITCHDEV_F_DEFER;
-	attr.u.brport_flags = flags;
 	err = switchdev_port_attr_set(p->dev, &attr);
 	if (err) {
 		br_warn(p->br, "error setting offload flag on port %u(%s)\n",
-- 
2.17.1