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Date: Tue, 20 May 2008 00:08:35 -0700
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] KBUILD: Move non-__KERNEL__-checking headers to
 header-y.
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To: "Robert P. J. Day" <rpjday@crashcourse.ca>
Cc: kbuild devel list <linux-kbuild@vger.kernel.org>

On Sat, 17 May 2008 20:18:07 -0400 (EDT) "Robert P. J. Day" <rpjday@crashcourse.ca> wrote:

> 
> Move exported header files under include/linux that don't check the
> __KERNEL__ preprocessor from unifdef-y to header-y.
> 

Changelog fails to tell us why this change is being made.

Perhaps it's because these headers just don't need unifdef processing?

If so, that seems fragile.  If we later add a __KERNEL__ section to a
header we need to remember to move the file to unifdef-y, and we'll
forget.  It'd be better to process all files with unifdef.

Or something.  Or not.