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authorDavid Kilroy <kilroyd@gmail.com>2008-08-23 19:03:34 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-09-02 17:39:49 -0400
commit667d41008eb8a0e1d495d6c0a6143b43fe587c98 (patch)
tree27a014eb95da100aa3f196a3c0beeafe5c811183 /drivers
parentf0b9f5cb4adcec9424142592ca7bf024fe6c91a9 (diff)
orinoco: Multicast to the specified addresses
When multicasting the driver sets the number of group addresses using the count from the previous set multicast command. In general this means you have to set the multicast addresses twice to get the behaviour you want. If we were multicasting, and reduce the number of addresses we are multicasting to, then the driver would write uninitialised data from the stack into the group addresses to multicast to. Only write the multicast addresses we have specifically set. Signed-off-by: David Kilroy <kilroyd@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/orinoco.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index 1ebcafe7ca5..36c004e1560 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -1970,6 +1970,9 @@ __orinoco_set_multicast_list(struct net_device *dev)
priv->promiscuous = promisc;
}
+ /* If we're not in promiscuous mode, then we need to set the
+ * group address if either we want to multicast, or if we were
+ * multicasting and want to stop */
if (! promisc && (mc_count || priv->mc_count) ) {
struct dev_mc_list *p = dev->mc_list;
struct hermes_multicast mclist;
@@ -1989,9 +1992,10 @@ __orinoco_set_multicast_list(struct net_device *dev)
printk(KERN_WARNING "%s: Multicast list is "
"longer than mc_count\n", dev->name);
- err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
- HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
- &mclist);
+ err = hermes_write_ltv(hw, USER_BAP,
+ HERMES_RID_CNFGROUPADDRESSES,
+ HERMES_BYTES_TO_RECLEN(mc_count * ETH_ALEN),
+ &mclist);
if (err)
printk(KERN_ERR "%s: Error %d setting multicast list.\n",
dev->name, err);