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Date: Mon, 2 Feb 2009 13:29:18 -0500
Message-ID: <8bd0f97a0902021029xa07a4d2n9779137a7d2bb9cd@mail.gmail.com>
Subject: Re: [git pull -tip] headers_check fixes for other architectures
From: Mike Frysinger <vapier.adi@gmail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jaswinder Singh Rajput <jaswinder@kernel.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Sam Ravnborg <sam@ravnborg.org>,
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       Russell King - ARM Linux <linux@arm.linux.org.uk>,
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On Mon, Feb 2, 2009 at 13:08, Ingo Molnar wrote:
> * Mike Frysinger wrote:
>> On Sun, Feb 1, 2009 at 11:49, Ingo Molnar wrote:
>> > These are the remaining ones on x86:
>> >
>> >     17 /dev/shm/tip/usr/include/linux/reiserfs_fs.h
>> >     12 /dev/shm/tip/usr/include/linux/soundcard.h
>> >      6 /dev/shm/tip/usr/include/asm/setup.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/asm/prctl.h
>> >
>> > They are all of the "extern's make no sense in userspace" type. What was
>> > the verdict, are they worth touching, or should we turn off this warning
>> > in 'make headers_check'?
>>
>> the warning wouldnt have been added if it didnt make sense ... like it
>> says, prototypes for kernel functions make no sense in userspace headers
>
> the existence of a warning does not justify it. For example the CONFIG_*
> warnings were deemed largely bogus and were removed.

kernel function prototypes make no sense in userspace, especially
considering how much effort goes into avoiding namespace pollution.
-mike