mac80211: rtlwifi: Align private space in rtl_priv struct

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 38346

package/kernel/mac80211/patches/750-rtlwifi-Align-private-space-in-rtl_priv-struct.patch

+From 60ce314d1750fef843e9db70050e09e49f838b69 Mon Sep 17 00:00:00 2001
+From: Larry Finger <Larry.Finger@lwfinger.net>
+Date: Thu, 19 Sep 2013 02:21:35 +0000
+Subject: rtlwifi: Align private space in rtl_priv struct
+
+The private array at the end of the rtl_priv struct is not aligned.
+On ARM architecture, this causes an alignment trap and is fixed by aligning
+that array with __align(sizeof(void *)). That should properly align that
+space according to the requirements of all architectures.
+
+Reported-by: Jason Andrews <jasona@cadence.com>
+Tested-by: Jason Andrews <jasona@cadence.com>
+Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
+Cc: Stable <stable@vger.kernel.org>
+Signed-off-by: John W. Linville <linville@tuxdriver.com>
+---
+--- a/drivers/net/wireless/rtlwifi/wifi.h
++++ b/drivers/net/wireless/rtlwifi/wifi.h
+@@ -2057,7 +2057,7 @@ struct rtl_priv {
+ 	   that it points to the data allocated
+ 	   beyond  this structure like:
+ 	   rtl_pci_priv or rtl_usb_priv */
+-	u8 priv[0];
++	u8 priv[0] __aligned(sizeof(void *));
+ };
+ 
+ #define rtl_priv(hw)		(((struct rtl_priv *)(hw)->priv))