/*
 *   32bit -> 64bit ioctl wrapper for hwdep API
 *   Copyright (c) by Takashi Iwai <tiwai@suse.de>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

/* This file is included from hwdep.c */

#include <linux/compat.h>

struct snd_hwdep_dsp_image32 {
	u32 index;
	unsigned char name[64];
	u32 image;	/* pointer */
	u32 length;
	u32 driver_data;
} /* don't set packed attribute here */;

static int snd_hwdep_dsp_load_compat(struct snd_hwdep *hw,
				     struct snd_hwdep_dsp_image32 __user *src)
{
	struct snd_hwdep_dsp_image __user *dst;
	compat_caddr_t ptr;
	u32 val;

	dst = compat_alloc_user_space(sizeof(*dst));

	/* index and name */
	if (copy_in_user(dst, src, 4 + 64))
		return -EFAULT;
	if (get_user(ptr, &src->image) ||
	    put_user(compat_ptr(ptr), &dst->image))
		return -EFAULT;
	if (get_user(val, &src->length) ||
	    put_user(val, &dst->length))
		return -EFAULT;
	if (get_user(val, &src->driver_data) ||
	    put_user(val, &dst->driver_data))
		return -EFAULT;

	return snd_hwdep_dsp_load(hw, dst);
}

enum {
	SNDRV_HWDEP_IOCTL_DSP_LOAD32   = _IOW('H', 0x03, struct snd_hwdep_dsp_image32)
};

static long snd_hwdep_ioctl_compat(struct file * file, unsigned int cmd,
				   unsigned long arg)
{
	struct snd_hwdep *hw = file->private_data;
	void __user *argp = compat_ptr(arg);
	switch (cmd) {
	case SNDRV_HWDEP_IOCTL_PVERSION:
	case SNDRV_HWDEP_IOCTL_INFO:
	case SNDRV_HWDEP_IOCTL_DSP_STATUS:
		return snd_hwdep_ioctl(file, cmd, (unsigned long)argp);
	case SNDRV_HWDEP_IOCTL_DSP_LOAD32:
		return snd_hwdep_dsp_load_compat(hw, argp);
	}
	if (hw->ops.ioctl_compat)
		return hw->ops.ioctl_compat(hw, file, cmd, arg);
	return -ENOIOCTLCMD;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>serial</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>pl2303.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-10 14:39:08 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-10 14:39:08 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>aca9fa0c8d225b1446dbed798b1d2f20e37e52cf</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>cf8d9f70ca376665da6b83eaae382ac0218395fc</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>drivers/usb/serial/pl2303.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.c?id=fc6f41ba8b2e705f91324db158c3cc28209a15b1'>fc6f41ba8b2e705f91324db158c3cc28209a15b1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf&amp;id2=fc6f41ba8b2e705f91324db158c3cc28209a15b1'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.c?id=bbb27fc33d44e7b8d96369810654df4ee1837566'>bbb27fc33d44e7b8d96369810654df4ee1837566</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/pl2303.c?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf&amp;id2=bbb27fc33d44e7b8d96369810654df4ee1837566'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux</div><div class='commit-msg'>Pull i2c bugfixes from Wolfram Sang:
 "Two bugfixes (proper IO mapping and use of mutex) for a driver feature
  we introduced in this cycle"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: piix4: Request the SMBUS semaphore inside the mutex
  i2c: piix4: Fix request_region size
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=aca9fa0c8d225b1446dbed798b1d2f20e37e52cf'>Diffstat</a> (limited to 'drivers/usb/serial/pl2303.c')</div><table summary='diffstat' class='diffstat'>