linux-kernel - Re: [PATCH 41/45] include/uapi/sound/emu10k1.h: hide gpr_valid, tram_valid and code

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Date:	Wed, 11 Mar 2015 03:22:04 +0200
From:	Mikko Rapeli <mikko.rapeli@....fi>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
	alsa-devel@...a-project.org, linux-api@...r.kernel.org
Subject: Re: [PATCH 41/45] include/uapi/sound/emu10k1.h: hide gpr_valid,
 tram_valid and code_valid in userspace

On Tue, Feb 17, 2015 at 07:27:38AM +0100, Takashi Iwai wrote:
> At Tue, 17 Feb 2015 00:05:44 +0100,
> Mikko Rapeli wrote:
> > 
> > The DECLARE_BITMAP macro is not available in userspace headers.
> > Fixes userspace compile error:
> > error: expected specifier-qualifier-list before ‘DECLARE_BITMAP’
> 
> It's nonsense.  This results in an incompatible structure, thus ABI
> would be broken completely (actually this will break the compile of
> ld10k1).

None of the exported headers after 'make headers_install' have definition
of DECLARE_BITMAP macro. It is defined in include/linux/types.h which is
different from include/uapi/linux/types.h and missing this definition and
a few other things.

One option would be add DECLARE_BITMAP macro to include/uapi/linux/types.h
and add include/linux/bitops.h to uapi.

Thoughts?

-Mikko
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