From: Shreyas Bhatewara <sbhatewara@vmware.com>
Date: Fri, 16 Jul 2010 01:17:29 -0700 (PDT)

> 
> 
> On Thu, 15 Jul 2010, David Miller wrote:
> 
>> From: Shreyas Bhatewara <sbhatewara@vmware.com>
>> Date: Thu, 15 Jul 2010 18:20:52 -0700 (PDT)
>> 
>> > Is this what you suggest :
>> > 
>> > ---
>> > 
>> > Hold rtnl_lock to get the right link state.
>> 
>> It ought to work, but make sure that it is legal to take the
>> RTNL semaphore in all contexts in which this code block
>> might be called.
>> 
> 
> This code block is called only from the workqueue handler, which runs in
> process context, so it is legal to take rtnl semaphore.
> Tested this code by simulating event interrupts (which schedule this 
> code) at considerable frequency while the interface was brought up and
> down in a loop. Similar stress testing had revealed the bug originally. 

Awesome, please submit this formally.  The copy you sent lacked a commit
message and signoff.