From: Stephen Hemminger <[email protected]>
Date: Thu, 24 Aug 2017 16:49:16 -0700
> There is a deadlock possible when canceling the link status
> delayed work queue. The removal process is run with RTNL held,
> and the link status callback is acquring RTNL.
>
> Resolve the issue by using trylock and rescheduling.
> If cancel is in process, that block it from happening.
>
> Fixes: 122a5f6410f4 ("staging: hv: use delayed_work for netvsc_send_garp()")
> Signed-off-by: Stephen Hemminger <[email protected]>
Applied and queued up for -stable, thanks.
