rtl2800usb: Fix incorrect storage of MAC address on big-endian platforms

commit daabead1c32f331edcfb255fd973411c667977e8 upstream.

The eeprom data is stored in little-endian order in the rt2x00 library.
As it was converted to cpu order in the read routines, the data need to
be converted to LE on a big-endian platform.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index d7e76c1d6ce1ea282b0ac9d9f6b92c10d6ecad5d..3f7ea1ce2956839c6c056446384405c61b3353b0 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3512,14 +3512,15 @@ static void rt2800_efuse_read(struct rt2x00_dev *rt2x00dev, unsigned int i)
        rt2800_regbusy_read(rt2x00dev, EFUSE_CTRL, EFUSE_CTRL_KICK, &reg);
 
        /* Apparently the data is read from end to start */
-       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA3,
-                                       (u32 *)&rt2x00dev->eeprom[i]);
-       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA2,
-                                       (u32 *)&rt2x00dev->eeprom[i + 2]);
-       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA1,
-                                       (u32 *)&rt2x00dev->eeprom[i + 4]);
-       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA0,
-                                       (u32 *)&rt2x00dev->eeprom[i + 6]);
+       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA3, &reg);
+       /* The returned value is in CPU order, but eeprom is le */
+       rt2x00dev->eeprom[i] = cpu_to_le32(reg);
+       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA2, &reg);
+       *(u32 *)&rt2x00dev->eeprom[i + 2] = cpu_to_le32(reg);
+       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA1, &reg);
+       *(u32 *)&rt2x00dev->eeprom[i + 4] = cpu_to_le32(reg);
+       rt2800_register_read_lock(rt2x00dev, EFUSE_DATA0, &reg);
+       *(u32 *)&rt2x00dev->eeprom[i + 6] = cpu_to_le32(reg);
 
        mutex_unlock(&rt2x00dev->csr_mutex);
 }