diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/core/hwdep_compat.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/core/hwdep_compat.c')
-rw-r--r-- | kernel/sound/core/hwdep_compat.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/kernel/sound/core/hwdep_compat.c b/kernel/sound/core/hwdep_compat.c new file mode 100644 index 000000000..3827c0cee --- /dev/null +++ b/kernel/sound/core/hwdep_compat.c @@ -0,0 +1,78 @@ +/* + * 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; +} |