[PATCH] BRIDGE: recompute features when adding a new device

[PATCH] BRIDGE: recompute features when adding a new device

[BRIDGE]: recompute features when adding a new device

We must recompute bridge features everytime the list of underlying
devices changes, or we might end up with features that are not supported
by all devices (eg. NETIF_F_TSO)
This patch adds the missing recompute when adding a device to the bridge.

Signed-off-by: Olaf Rempel <razzor@kopf-tisch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>