Re: [PATCH] topology: Include <linux/types.h> in API header file

[Liam Girdwood <liam.r.girdwood@linux.intel.com>]

On Fri, 2015-11-06 at 14:33 +0100, Takashi Iwai wrote:
> On Fri, 06 Nov 2015 14:31:18 +0100,
> Vinod Koul wrote:
> > 
> > On Fri, Nov 06, 2015 at 01:59:41PM +0100, Takashi Iwai wrote:
> > > On Fri, 06 Nov 2015 13:39:36 +0100,
> > > mengdong.lin@linux.intel.com wrote:
> > > > 
> > > > From: Mengdong Lin <mengdong.lin@linux.intel.com>
> > > > 
> > > > Include <linux/types.h> in the API header file topology.h
> > > > 
> > > > The struct snd_tplg_stream_caps_template has a member "formats"
> > > > of type __le64. So <linux/types.h> is needed.
> > > 
> > > We shouldn't use __le64 for user-space API.  I couldn't find it in
> > > include/topology.h.  Where is it used?
> > > 
> > > Of course, it's fine to use it for kernel ABI.  But then linux/types.h
> > > is already included in local.h, so it shouldn't be a problem.
> > 
> > Our tool threw this error
> > 
> > ./local-alsa/include/alsa/topology.h:668:2: error: â__le64â does not name a
> > type
> >   __le64 formats; /*!< supported formats SNDRV_PCM_FMTBIT_* */
> > 

Can you try the following patch for the userspace header.

From 568f769269122e90fceee605a98a1a526db2b3d4 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 6 Nov 2015 14:30:36 +0000
Subject: [PATCH] topology: remove little endian type from userspace header.

Use a generic unsigned long long for formats instead of an ABI endian
specific __le64 type.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
---
 include/topology.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/topology.h b/include/topology.h
index b631871..1a110a2 100644
--- a/include/topology.h
+++ b/include/topology.h
@@ -665,7 +665,7 @@ struct snd_tplg_stream_template {
  */
 struct snd_tplg_stream_caps_template {
 	const char *name;	/*!< name of the stream caps */
-	__le64 formats;	/*!< supported formats SNDRV_PCM_FMTBIT_* */
+	unsigned long long formats;	/*!< supported formats SNDRV_PCM_FMTBIT_* */
 	unsigned int rates;	/*!< supported rates SNDRV_PCM_RATE_* */
 	unsigned int rate_min;	/*!< min rate */
 	unsigned int rate_max;	/*!< max rate */
-- 
2.5.0


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