linux-kernel - Re: [usb regression] Re: [PATCH 2.6.24-rc3] Fix /proc/net breakage

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Message-ID: <20080102071431.GA32357@kroah.com>
Date:	Tue, 1 Jan 2008 23:14:31 -0800
From:	Greg KH <greg@...ah.com>
To:	Andreas Mohr <andi@...as.de>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Ingo Molnar <mingo@...e.hu>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	kernel list <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>,
	Pavel Emelyanov <xemul@...nvz.org>,
	"Denis V. Lunev" <den@...nvz.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: [usb regression] Re: [PATCH 2.6.24-rc3] Fix /proc/net breakage

On Wed, Jan 02, 2008 at 07:13:08AM +0100, Andreas Mohr wrote:
> Hi,
> 
> On Tue, Jan 01, 2008 at 10:00:06PM -0800, Greg KH wrote:
> > Ok, no, I didn't write that patch, I'm getting very confused here.
> > 
> > In 2.6.24-rc6 there is no usage of debugfs in the ohci driver.
> > 
> > In the -mm tree there is a patch, from Tony Jones, that moves some debug
> > code out of sysfs and into debugfs where it belongs.  It does it for
> > both the ehci and ohci USB host controller drivers, and this is the code
> > that is incorrect if CONFIG_DEBUGFS is not enabled.
> > 
> > So, for the 2.6.24 release, nothing needs to be changed, all is good,
> > and there is no regression.
> > 
> > Right?  Or am I still confused about this whole thing?
> 
> Probably, since I also wasn't sure about this getting added to the
> post-2.6.23 regressions. I'd expect this problem to be -mm only myself,
> but then I didn't actively verify it in code (and I haven't tried -rc6
> proper on that machine yet either, build takes ages ;).
> OK, since I cannot really offer anything other than positive feelings about
> this being non-rc6 breakage, should I try -rc6 proper, too?

Please do, that would be very helpful.

As the code being discussed isn't even in Linus's tree, it's hard to see
how this could be a proposed fix for the regression :)

thanks,

greg k-h
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