linux-kernel - [PATCH 2/2] Use __compat_aligned

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Date:	Wed, 25 Dec 2013 09:17:46 -0800
From:	"H.J. Lu" <hjl.tools@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	alan.cox@...el.com, Thomas Gleixner <tglx@...utronix.de>,
	tiwai@...e.de, perex@...ex.cz, alsa-devel@...a-project.org
Subject: [PATCH 2/2] Use __compat_aligned_s64 in uapi <sound/asound.h>

The integer64 field in struct snd_ctl_elem_value has different offsets,
depending the alignment of long long.  This patch replaces long long
with the newly introduced __compat_aligned_s64 so that x32 and ia32
can use the same compat system call for struct snd_ctl_elem_value.

Signed-off-by: H.J. Lu <hjl.tools@...il.com>
---
 include/uapi/sound/asound.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index e3983d5..ea6489c 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -877,8 +877,8 @@ struct snd_ctl_elem_value {
 			long *value_ptr;	/* obsoleted */
 		} integer;
 		union {
-			long long value[64];
-			long long *value_ptr;	/* obsoleted */
+			__compat_aligned_s64 value[64];
+			__compat_aligned_s64 *value_ptr;	/* obsoleted */
 		} integer64;
 		union {
 			unsigned int item[128];
-- 
1.8.1.4

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