[PATCH net-next] net/bridge: Enable bridge also when switchdev can't be built

[Or Gerlitz <ogerlitz@mellanox.com>]

Currently switchdev doesn't build on older gcc version such as 4.4.6

The reason for the compile error is such that it causes a failure
to build the bridge too, even when switchdev isn't configured (the
stub isn't enough), fix it.

CC [M]  net/bridge/br_stp.o
net/bridge/br_stp.c: In function 'br_set_state':
net/bridge/br_stp.c:44: error: unknown field 'stp_state' specified in initializer

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
---
 net/bridge/br_stp.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index b9300da..752783a 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -39,17 +39,19 @@ void br_log_state(const struct net_bridge_port *p)
 
 void br_set_state(struct net_bridge_port *p, unsigned int state)
 {
+#ifdef CONFIG_NET_SWITCHDEV
 	struct switchdev_attr attr = {
 		.id = SWITCHDEV_ATTR_PORT_STP_STATE,
 		.stp_state = state,
 	};
 	int err;
 
-	p->state = state;
 	err = switchdev_port_attr_set(p->dev, &attr);
 	if (err && err != -EOPNOTSUPP)
 		br_warn(p->br, "error setting offload STP state on port %u(%s)\n",
 				(unsigned int) p->port_no, p->dev->name);
+#endif
+	p->state = state;
 }
 
 /* called under bridge lock */
-- 
1.7.1