[netdrvr] b44: handle excessive multicast groups

If there are more than B44_MCAST_TABLE_SIZE groups in the dev->mc_list,
it will only listen to the first B44_MCAST_TABLE_SIZE that it sees.

This change makes the driver go into RXCONFIG_ALLMULTI mode if there
are more than B44_MCAST_TABLE_SIZE groups being subscribed to, similar
to other network drivers.

Noticed by Bill Helfinstine <bhelf@flitterfly.whirpon.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index e891ea2ecc3c..973b8eb37dc2 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -1706,14 +1706,15 @@ static void __b44_set_rx_mode(struct net_device *dev)
 
                 __b44_set_mac_addr(bp);
 
-                if (dev->flags & IFF_ALLMULTI)
+                if ((dev->flags & IFF_ALLMULTI) ||
+                    (dev->mc_count > B44_MCAST_TABLE_SIZE))
                         val |= RXCONFIG_ALLMULTI;
                 else
                         i = __b44_load_mcast(bp, dev);
 
-                for (; i < 64; i++) {
+                for (; i < 64; i++)
                         __b44_cam_write(bp, zero, i);
-                }
+
                 bw32(bp, B44_RXCONFIG, val);
                 val = br32(bp, B44_CAM_CTRL);
                 bw32(bp, B44_CAM_CTRL, val | CAM_CTRL_ENABLE);