Re: [PATCH] ipv4: arp: fix a lockdep splat in arp_solicit()

From: Eric Dumazet <redacted>
Date: Fri, 21 Dec 2012 09:32:10 -0800

From: Eric Dumazet <edumazet@google.com>

Yan Burman reported following lockdep warning :

 ...

Bug is from arp_solicit(), releasing the neigh lock after arp_send()
In case of vxlan, we eventually need to write lock a neigh lock later.

Its a false positive, but we can get rid of it without lockdep
annotations.

We can instead use neigh_ha_snapshot() helper.

Reported-by: Yan Burman <redacted>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Stephen Hemminger <redacted>

Applied.