b44: fix IFF_ALLMULTI handling of CAM slots

If you set the IFF_ALLMULTI flag on a b44 device, or if you join more than
B44_MCAST_TABLE_SIZE multicast groups, the device will stop receiving unicast
messages.  This is because the __b44_set_mac_addr call sets the zeroth CAM
entry to the MAC address of the device, and then the loop at line 1722
proceeds to overwrite it unless the value of i is set by the __b44_load_mcast
call.  However, when IFF_ALLMULTI is set, that call is bypassed, leaving i set
to zero.

Fixed by starting the loop at 1 to make it skip the CAM entry for the MAC
address.

Signed-off-by: Bill Helfinstine <bhelf@flitterfly.whirpon.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index aaada572732a87fd3c8fd2d03898861d834c2c86..d742bfe2447107aed4517bef81bd180e3b475a33 100644 (file)
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -1709,7 +1709,7 @@ static void __b44_set_rx_mode(struct net_device *dev)
                bw32(bp, B44_RXCONFIG, val);
        } else {
                unsigned char zero[6] = {0, 0, 0, 0, 0, 0};
-               int i = 0;
+               int i = 1;
 
                __b44_set_mac_addr(bp);