linux-kernel - Re: 2.6.21-rc4-mm1

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Message-Id: <20070326024400.1ce3c6e4.akpm@linux-foundation.org>
Date:	Mon, 26 Mar 2007 02:44:00 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Eric Rannaud <eric.rannaud@...il.com>
Cc:	Cornelia Huck <cornelia.huck@...ibm.com>,
	Larry Finger <larry.finger@...inger.net>,
	Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org,
	linux-wireless@...r.kernel.org,
	Monakhov Dmitriy <dmonakhov@...nvz.org>
Subject: Re: 2.6.21-rc4-mm1

On Mon, 26 Mar 2007 12:34:33 +0200 Eric Rannaud <eric.rannaud@...il.com> wrote:

> On Mon, Mar 26, 2007 at 01:22:32AM -0800, Andrew Morton wrote:
> > On Mon, 26 Mar 2007 11:09:49 +0200 Cornelia Huck <cornelia.huck@...ibm.com> wrote:
> > > > If so, do you think I should labour on with
> > > > uevent-improve-error-checking-and-handling.patch plus your fix, or should I
> > > > drop the lot?  (I'm inclined toward the latter, but I'm still not
> > > > sure which patch(es) need to be dropped).
> > > 
> > > This depends on what semantics uevent returning an error code should
> > > have. The firmware code was using it to suppress uevents, but
> > > uevent_suppress is a better idea now. So if we want uevent returning !=
> > > 0 to imply "something really bad happened", all uevent functions have
> > > to be audited and those that work like firmware_uevent have to be
> > > converted to uevent_suppress. This would be cleaner, but I'm not sure
> > > it's worth the work.
> > 
> > We're generally struggling to stay alive amongst all the bugs at present -
> > I'll drop all those patches.
> 
> My mistake, I wrote the guilty patch
> uevent-improve-error-checking-and-handling.patch assuming it was safe to
> treat the return value as an error code, since several uevent functions
> returns things like -ENOMEM.
> 
> Should I rework the patch as Cornelia suggests and resubmit later, when
> things have settled down a little?

Sure, when we've fixed all the bugs ;)

I think we now know what to test for - firmware loading simply collapsed
all over the place with these changes.

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