linux-kernel - Re: [PATCH] USB: fix interrupt disabling for HCDs with shared interrupt handlers

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Date:	Tue, 1 Jul 2008 12:13:43 -0700
From:	Greg KH <gregkh@...e.de>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Stefan Becker <Stefan.Becker@...ia.com>, linux-usb@...r.kernel.org,
	ext David Brownell <david-b@...bell.net>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	ext Leonardo Chiquitto <leonardo.lists@...il.com>
Subject: Re: [PATCH] USB: fix interrupt disabling for HCDs with shared
	interrupt handlers

On Tue, Jul 01, 2008 at 02:59:38PM -0400, Alan Stern wrote:
> On Tue, 1 Jul 2008, Greg KH wrote:
> 
> > Hm, isn't this also an issue in 2.6.25 as well?  I've had a few very
> > strange reports of USB just locking up in 2.6.25, could this also be the
> > cause there?
> 
> It could go back a lot farther than that.  I don't think our interrupt 
> setup has been changed significantly for a long time, with one 
> exception: We added the IRQF_DISABLED flag fairly recently.  But of 
> course, we now know that it doesn't do what we expected.
> 
> It's surprising that more people haven't experienced this problem and 
> reported it.

Ok, I'll queue it up for -stable as well.

> > Alan and Dave, do you both ack this thing?  I know you've been involved
> > in creating it, just want to get the formal approval :)
> 
> Acked-by: Alan Stern <stern@...land.harvard.edu>
> 
> There still are a few places where spaces were used instead of tabs for 
> indenting.  Aside from that it looks fine.

Thanks, I'll clean that up by hand, not a big deal :)

greg k-h
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