linux-kernel - Re: RFC: kconfig select warnings bogus?

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Message-ID: <a781481a0705191804u7f5a344cr92f2a1981c502bf7@mail.gmail.com>
Date:	Sun, 20 May 2007 06:34:01 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Stefan Richter" <stefanr@...6.in-berlin.de>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Sam Ravnborg" <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Roman Zippel" <zippel@...ux-m68k.org>,
	"Kumar Gala" <galak@...nel.crashing.org>,
	"Simon Horman" <horms@...ge.net.au>, "Adrian Bunk" <bunk@...sta.de>
Subject: Re: RFC: kconfig select warnings bogus?

On 5/20/07, Satyam Sharma <satyam.sharma@...il.com> wrote:
> On 5/20/07, Stefan Richter <stefanr@...6.in-berlin.de> wrote:
> > Satyam Sharma wrote:
> > > A combined patch for all of those on top of 22-rc2 (adding Signed-off-by's
> > > for original authors too):
> > >
> > > Signed-off-by: Kumar Gala <galak@...nel.crashing.org>
> > > Signed-off-by: Simon Horman <horms@...ge.net.au>
> > > Signed-off-by: Satyam Sharma <ssatyam@....iitk.ac.in>
> >
> > [...]
> >
> > Adrian already commented on this.  Let me just add that these above
> > changes are in so far *totally wrong* as they remove the "depends on
> > XYZ" which is implied by "select XYZ".
>
> Did you even try this patch?
>
> Did you try to select UCC_GETH and see if UCC_FAST got
> automatically selected or not?
>
> Did you get any build problems (or bogus warnings, for that matter)?
>
> Have you ever looked into arch/.../Kconfig's?
>
> > Remember, "select" is like "depends on", just with the added twist that
> > the 'make snafuconfig' scripts are instructed to (a) not hide the
> > depending option from the user and (b) try to enable the dependency for
> > the user if he tries to enable the depending option.
>
> This is precisely what happens with this patch too.
>
> Believe me, just go ahead and try it.
>
> Report any errors, dissatisfaction, etc, if any.
>
> Thanks.

[ Just to add: ]

You'll learn about the "default .. if .." Kconfig idiom after you try this, but
when this patch works for you, an Acked-by would also be nice, thanks.
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