linux/sound/core/timer_compat.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *   32bit -> 64bit ioctl wrapper for timer API
 *   Copyright (c) by Takashi Iwai <[email protected]>
 */

/* This file included from timer.c */

#include <linux/compat.h>

/*
 * ILP32/LP64 has different size for 'long' type. Additionally, the size
 * of storage alignment differs depending on architectures. Here, '__packed'
 * qualifier is used so that the size of this structure is multiple of 4 and
 * it fits to any architectures with 32 bit storage alignment.
 */
struct snd_timer_gparams32 { … } __packed;

struct snd_timer_info32 { … };

static int snd_timer_user_gparams_compat(struct file *file,
					struct snd_timer_gparams32 __user *user)
{ … }

static int snd_timer_user_info_compat(struct file *file,
				      struct snd_timer_info32 __user *_info)
{ … }

enum { … };

static long __snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
					  unsigned long arg)
{ … }

static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
					unsigned long arg)
{ … }