Re: [PATCH] usbcore: refine warm reset logic

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On Mon, 2011-08-29 at 14:52 -0700, Sarah Sharp wrote:
> On Fri, Aug 26, 2011 at 11:03:28AM +0800, Andiry Xu wrote:
> > On Thu, 2011-08-25 at 19:10 -0700, Sarah Sharp wrote:
> > > Note that the mask does not include the warm port reset bit (PORT_WRC).
> > > When I applied the attached patch to include the warm port reset bit
> > > change in the mask on top of Andiry's patch (plus the modifications I
> > > made), the USB core did clear the BH reset change.
> > > 
> > > When I reverted Andiry's patch, and applied my mask bit patch, the USB
> > > core cleared the BH reset fine.  I think we should go with the simpler
> > > fix for 3.1 and the stable trees, and maybe Andiry's patch (modified to
> > > remove the clearing of the change bits) should be queued for 3.2.
> > > 
> > 
> > OK, but I'm wondering why the usbcore will report BH reset change for me
> > even without the two patches. 
> 
> Maybe the host controller you're testing on reports another change bit
> being set at the same time as the BH reset change?  Perhaps a link state
> change?  It could be just a hardware implementation difference.
> 
> Any objections to me queueing this patch (minus the comment about port
> reset) for 3.1?
> 

I'm OK with it.

Thanks,
Andiry


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