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>

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;
+}