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, 193 insertions, 0 deletions

diff --git a/kernel/drivers/net/wireless/ipw2x00/libipw_geo.c b/kernel/drivers/net/wireless/ipw2x00/libipw_geo.c
new file mode 100644
index 000000000..218f2a32d
--- /dev/null
+++ b/kernel/drivers/net/wireless/ipw2x00/libipw_geo.c
@@ -0,0 +1,193 @@
+/******************************************************************************
+
+  Copyright(c) 2005 Intel Corporation. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2 of the GNU General Public License as
+  published by the Free Software Foundation.
+
+  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.
+
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+
+  Contact Information:
+  Intel Linux Wireless <ilw@linux.intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+******************************************************************************/
+#include <linux/compiler.h>
+#include <linux/errno.h>
+#include <linux/if_arp.h>
+#include <linux/in6.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/wireless.h>
+#include <linux/etherdevice.h>
+#include <asm/uaccess.h>
+
+#include "libipw.h"
+
+int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
+
+	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			/* NOTE: If G mode is currently supported but
+			 * this is a B only channel, we don't see it
+			 * as valid. */
+			if ((ieee->geo.bg[i].channel == channel) &&
+			    !(ieee->geo.bg[i].flags & LIBIPW_CH_INVALID) &&
+			    (!(ieee->mode & IEEE_G) ||
+			     !(ieee->geo.bg[i].flags & LIBIPW_CH_B_ONLY)))
+				return LIBIPW_24GHZ_BAND;
+
+	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if ((ieee->geo.a[i].channel == channel) &&
+			    !(ieee->geo.a[i].flags & LIBIPW_CH_INVALID))
+				return LIBIPW_52GHZ_BAND;
+
+	return 0;
+}
+
+int libipw_channel_to_index(struct libipw_device *ieee, u8 channel)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return -1;
+
+	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			if (ieee->geo.bg[i].channel == channel)
+				return i;
+
+	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if (ieee->geo.a[i].channel == channel)
+				return i;
+
+	return -1;
+}
+
+u32 libipw_channel_to_freq(struct libipw_device * ieee, u8 channel)
+{
+	const struct libipw_channel * ch;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
+
+	ch = libipw_get_channel(ieee, channel);
+	if (!ch->channel)
+		return 0;
+	return ch->freq;
+}
+
+u8 libipw_freq_to_channel(struct libipw_device * ieee, u32 freq)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
+
+	freq /= 100000;
+
+	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			if (ieee->geo.bg[i].freq == freq)
+				return ieee->geo.bg[i].channel;
+
+	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if (ieee->geo.a[i].freq == freq)
+				return ieee->geo.a[i].channel;
+
+	return 0;
+}
+
+void libipw_set_geo(struct libipw_device *ieee,
+		      const struct libipw_geo *geo)
+{
+	memcpy(ieee->geo.name, geo->name, 3);
+	ieee->geo.name[3] = '\0';
+	ieee->geo.bg_channels = geo->bg_channels;
+	ieee->geo.a_channels = geo->a_channels;
+	memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
+	       sizeof(struct libipw_channel));
+	memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
+	       sizeof(struct libipw_channel));
+}
+
+const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee)
+{
+	return &ieee->geo;
+}
+
+u8 libipw_get_channel_flags(struct libipw_device * ieee, u8 channel)
+{
+	int index = libipw_channel_to_index(ieee, channel);
+
+	if (index == -1)
+		return LIBIPW_CH_INVALID;
+
+	if (channel <= LIBIPW_24GHZ_CHANNELS)
+		return ieee->geo.bg[index].flags;
+
+	return ieee->geo.a[index].flags;
+}
+
+static const struct libipw_channel bad_channel = {
+	.channel = 0,
+	.flags = LIBIPW_CH_INVALID,
+	.max_power = 0,
+};
+
+const struct libipw_channel *libipw_get_channel(struct libipw_device
+						      *ieee, u8 channel)
+{
+	int index = libipw_channel_to_index(ieee, channel);
+
+	if (index == -1)
+		return &bad_channel;
+
+	if (channel <= LIBIPW_24GHZ_CHANNELS)
+		return &ieee->geo.bg[index];
+
+	return &ieee->geo.a[index];
+}
+
+EXPORT_SYMBOL(libipw_get_channel);
+EXPORT_SYMBOL(libipw_get_channel_flags);
+EXPORT_SYMBOL(libipw_is_valid_channel);
+EXPORT_SYMBOL(libipw_freq_to_channel);
+EXPORT_SYMBOL(libipw_channel_to_freq);
+EXPORT_SYMBOL(libipw_channel_to_index);
+EXPORT_SYMBOL(libipw_set_geo);
+EXPORT_SYMBOL(libipw_get_geo);