Re: [PATCH net-next v04 1/3] af_packet: allow fanout_add when socket is not RUNNING

Gur Stavi wrote:

PACKET socket can retain its fanout membership through link down and up and leave a fanout while closed regardless of link state. However, socket was forbidden from joining a fanout while it was not RUNNING.

This patch allows PACKET socket to join fanout while not RUNNING.

Socket can be RUNNING if it has a specified protocol. Either directly from packet_create (being implicitly bound to any interface) or following a successful bind. Socket RUNNING state is switched off if it is bound to an interface that went down.

Instead of the test for RUNNING, this patch adds a test that socket can become RUNNING.

Signed-off-by: Gur Stavi gur.stavi@huawei.com

Reviewed-by: Willem de Bruijn willemb@google.com