dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

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

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>
Cc: Stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2011-09-14 16:50:23 -05:00 committed by John W. Linville
parent d331eb51e4
commit daabead1c3
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/wireless/rt2x00/rt2800lib.c
View File

@ -3697,14 +3697,15 @@ 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);
}