linux-kernel - Re: [PATCH] samples: build fix

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Message-ID: <20080214194633.GA21894@uranus.ravnborg.org>
Date:	Thu, 14 Feb 2008 20:46:33 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Roland McGrath <roland@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] samples: build fix

On Thu, Feb 14, 2008 at 08:27:52AM -0500, Mathieu Desnoyers wrote:
> * Roland McGrath (roland@...hat.com) wrote:
> > 
> > The samples/ subdirectory contains only modules.
> > But the only make run done there is in commands for vmlinux.
> > I can't see why this was ever done in this nonstandard fashion.
> > As things stand, the modules don't get built by 'make modules'.
> > 
> > I didn't make the addition of the directory use core-$(CONFIG_SAMPLES)
> > because there is no other conditional like that in the top-level Makefile
> > and samples/Makefile already uses obj-$(CONFIG_SAMPLES) as if it expects
> > always to be included.
> > 
> 
> Sam, is this ok with the samples intent ? I think as long as we do not
> include them with the kernel image and have a "make samples" to build
> them, it's ok. Having them built upon make modules seems like a good
> idea to me.

The samples code are supposed to be what the name says 'samples'.
This is not code that are supposed to be part of the built-in kernel.
This is not modules that are supposed to be installes when 
installing modules.

Adding it to core-y as Roland does in the patch below is plain
wrong as it enabled both points above.
The fact that the present code in samples/ does not do this is
in this respect irellevant.

Do we have problems when to build the sampls - then lets
address this issue but not by trying to upgrade the samples
to first class citizen in the kernel - they are not that
and should not be handled like that.

	Sam
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