tree c01cf2481fea951491b25a4cedab5de305a1fcb6
parent 349ce993ac706869d553a1816426d3a4bfda02b1
author Eric Dumazet <edumazet@google.com> 1414032226 -0700
committer David S. Miller <davem@davemloft.net> 1414268642 -0400

macvlan: fix a race on port dismantle and possible skb leaks

We need to cancel the work queue after rcu grace period,
otherwise it can be rescheduled by incoming packets.

We need to purge queue if some skbs are still in it.

We can use __skb_queue_head_init() variant in
macvlan_process_broadcast()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 412ca1550cbec ("macvlan: Move broadcasts into a work queue")
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>