linux-kernel - Re: [PATCH 24/45] hdspm.h: include stdint.h in userspace

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Message-ID: <20150311002812.GB12550@lakka.kapsi.fi>
Date:	Wed, 11 Mar 2015 02:28:12 +0200
From:	Mikko Rapeli <mikko.rapeli@....fi>
To:	Takashi Iwai <tiwai@...e.de>, Arnd Bergmann <arnd@...db.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 24/45] hdspm.h: include stdint.h in userspace

On Tue, Feb 17, 2015 at 07:46:02AM +0100, Takashi Iwai wrote:
> At Tue, 17 Feb 2015 00:05:27 +0100,
> Mikko Rapeli wrote:
> > 
> > Fixes compilation error:
> > 
> > sound/hdspm.h:43:2: error: unknown type name ‘uint32_t’
> > 
> > Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>
> 
> Applied for 3.21, thanks.

Sorry, but this should maybe be dropped or reverted from the sound tree.

Arnd and others pointed out that kernel headers should be using __u32 etc
types from linux/types.h instead of including stdint.h from libc and using
uint32_t et al.

I'll post a new patch version for hdspm.h too in the next revision.

-Mikko

> 
> Takashi
> 
> > ---
> >  include/uapi/sound/hdspm.h | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h
> > index d956c35..f799828 100644
> > --- a/include/uapi/sound/hdspm.h
> > +++ b/include/uapi/sound/hdspm.h
> > @@ -20,6 +20,12 @@
> >   *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> >   */
> >  
> > +#ifdef __KERNEL__
> > +#include <linux/types.h>
> > +#else
> > +#include <stdint.h>
> > +#endif
> > +
> >  /* Maximum channels is 64 even on 56Mode you have 64playbacks to matrix */
> >  #define HDSPM_MAX_CHANNELS      64
> >  
> > -- 
> > 2.1.4
> > 
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