From: Oliver Neukum oneukum@suse.com
[ Upstream commit b8b277525e9df2fd2dc3d1f4fe01c6796bb107fc ]
If the MTU is large enough, the first write to the device is just repeated. On BE architectures, however, the first word of the command will be swapped a second time and garbage will be written. Avoid that.
Signed-off-by: Oliver Neukum oneukum@suse.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/aqc111.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -453,6 +453,8 @@ static int aqc111_change_mtu(struct net_ reg16 = 0x1420; else if (dev->net->mtu <= 16334) reg16 = 0x1A20; + else + return 0;
aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW, 2, ®16);