linux-kernel - Re: [GIT] kbuild

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Message-ID: <20090420082429.GA9877@uranus.ravnborg.org>
Date:	Mon, 20 Apr 2009 10:24:29 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Russell King <rmk+lkml@....linux.org.uk>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, jdike@...toit.com
Subject: Re: [GIT] kbuild

On Mon, Apr 20, 2009 at 06:15:38AM +0100, Al Viro wrote:
> On Mon, Apr 20, 2009 at 06:45:51AM +0200, Sam Ravnborg wrote:
> 
> > For kernel proper the use of -idirafter would be confusing.
> > But for um alone we should be safe provided it is properly commented.
> 
> Less than for all um - it's only for USER_OBJ there.  It is special,
> simply because for uml the counterpart of really low-level glue has
> to talk to libc.  So there we have separation into "normal kernel source"
> and "userland code that uses userland headers, calls libc functions, etc."
>  
> > I have already fixed um the obvious way for asm-offsets in my local tree.
> > But if you prefer I can add a -dirafter based patch before the "move
> > asm-offsets.h to incldue/generated" patch.
> 
> I've dumped several header cleanup patches for uml into
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/um-header.git/ 
> including the -idirafter, move of user_constants.h, etc.
> Another fun thing: user.h used to be included directly by just about
> every userland-side file.  Switched it to -include user.h (for USER_CFLAGS,
> of course - not for normal stuff), killed includes, got rid of shitloads
> of kern_constants.h includes at the same time.  At which point getting
> rid of kern_constants.h became trivial.
> 
> Up to Jeff's approval, obviously - *including* -idirafter patch.

I have skimmed the patches - they all looked good to me.
Everyting that cleans up arch/um/Makefile is good!

I you respin them you can add my:

    Acked-by: Sam Ravnborg <sam@...nborg.org>

The asm-offsets.h that um picks us is the one generated by um.
So we still need to add a dummy file in arch/um/include/asm that
only do:
    #include <generated/asm-offsets.h>

I will do so in my patch-set.

	Sam
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