Re: [PATCH v3 net-next 07/11] net: prep switchdev drivers for concurrent SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS
From: Ido Schimmel <hidden>
Date: 2021-02-10 10:27:51
Also in:
bridge, linux-omap, lkml
On Wed, Feb 10, 2021 at 11:14:41AM +0200, Vladimir Oltean wrote:
From: Vladimir Oltean <vladimir.oltean@nxp.com> Because the bridge will start offloading SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS while not serialized by any lock such as the br->lock spinlock, existing drivers that treat that attribute and cache the brport flags might no longer work correctly.
Can you explain the race? This notification is sent from sysfs/netlink call path, both of which take rtnl.