linux-kernel - Re: 2.6.24-mm1: module params broken

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Message-Id: <20080204161620.6230f62a.akpm@linux-foundation.org>
Date:	Mon, 4 Feb 2008 16:16:20 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Hugh Dickins <hugh@...itas.com>
Cc:	yi.y.yang@...el.com, greg@...ah.com, rdunlap@...otime.net,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.24-mm1: module params broken

On Tue, 5 Feb 2008 00:06:39 +0000 (GMT)
Hugh Dickins <hugh@...itas.com> wrote:

> On Mon, 4 Feb 2008, Andrew Morton wrote:
> > 
> > Takashi found a bug in it:
> 
> Bless him.
> 
> > --- a/lib/vsprintf.c~add-new-string-functions-strict_strto-and-convert-kernel-params-to-use-them-fix-2
> > +++ a/lib/vsprintf.c
> > @@ -234,7 +234,7 @@ int strict_strto##type(const char *cp, u
> >  		if (ret != 0)						\
> >  			*res = -(*res);					\
> >  	} else								\
> > -		ret = strict_strtou##type(cp+1, base, res);		\
> > +		ret = strict_strtou##type(cp, base, res);		\
> >  									\
> >  	return ret;							\
> >  }									\
> > _
> > 
> > and I was very bad and didn't immediately prepare and upload the fix and
> > hence probably wasted a lot of your time, for which I apologise.  In my
> > defense, it was 4:00AM Sunday and I had lost eye control by then.
> 
> Please don't even begin to think of apologizing to me:
> that's so much the wrong way round it's embarrassing.

three minutes saved here led to maybe an hour lost there.

> It's scary to think of how much of your time gets wasted
> on knocking these -mms into some kind of shape that's
> then ready for the rest of us to start attacking them.

Well yeah.  Three minutes saved there (* 1000) led to maybe 1000 hours lost
here.  Kernel economics :(


> > Does that fix fix it?  If not: patch overboard.
> 
> Reprieve!  Indeed that precisely fixes it: numerous
> modules now working again with that fix.  Thanks a lot.

Thanks.
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