linux-kernel - Re: [PATCH] kbuild: drop check for CONFIG_ in headers

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Message-ID: <20090131004111.GB13709@elte.hu>
Date:	Sat, 31 Jan 2009 01:41:11 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Jaswinder Singh Rajput <jaswinder@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kbuild: drop check for CONFIG_ in headers_check


* Arnd Bergmann <arnd@...db.de> wrote:

> On Saturday 31 January 2009, Ingo Molnar wrote:
> > Jaswinder, i think we now have a realistic chance to reach a zero baseline 
> > with these warnings, for v2.6.29. Here are the remaining warnings (summed 
> > up per file) on x86 (after Sam's patch):
> > 
> >      17 /dev/shm/tip/usr/include/linux/reiserfs_fs.h
> >      12 /dev/shm/tip/usr/include/linux/soundcard.h
> >       3 /dev/shm/tip/usr/include/linux/nubus.h
> >       2 /dev/shm/tip/usr/include/linux/in6.h
> >       1 /dev/shm/tip/usr/include/mtd/jffs2-user.h
> >       1 /dev/shm/tip/usr/include/linux/socket.h
> >       1 /dev/shm/tip/usr/include/linux/coda_psdev.h
> >       1 /dev/shm/tip/usr/include/linux/bsg.h
> > 
> 
> Ah, that doesn't look too bad. On a related subject, was there ever a 
> conclusion about whether we want to support __KERNEL_STRICT_NAMES in 
> every header? When that is set, headers cannot use most of the standard 
> types (dev_t, mode_t, off_t, pid_t, suseconds_t, timer_t, uid_t, gid_t, 
> loff_t, time_t, clock_t, caddr_t, pgoff_t, {u_,u,}int{8,16,32,64}_6}) 
> but have to use the __kernel_* versions of that.

hm, that looks quite ugly and unnatural. Could the usr/* exporting scripts 
convert these types automatically to the __kernel_* versions?

	Ingo
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