tree 1ada6ec6cd236f98371c32fc02c30c97546f84d9
parent 58c5900bdaffbf76afd7ad5e053410cb95eb3169
author Michael Ellerman <[EMAIL PROTECTED]> Thu, 01 Sep 2005 11:29:02 +1000
committer Jeff Garzik <[EMAIL PROTECTED]> Thu, 01 Sep 2005 06:37:57 -0400
[PATCH] iseries_veth: Fix broken promiscuous handling
Due to a logic bug, once promiscuous mode is enabled in the iseries_veth
driver it is never disabled.
The driver keeps two flags, promiscuous and all_mcast which have exactly the
same effect. This is because we only ever receive packets destined for us,
or multicast packets. So consolidate them into one promiscuous flag for
simplicity.
Signed-off-by: Michael Ellerman <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
drivers/net/iseries_veth.c | 16 +++++-----------
1 files changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -159,7 +159,6 @@ struct veth_port {
rwlock_t mcast_gate;
int promiscuous;
- int all_mcast;
int num_mcast;
u64 mcast_addr[VETH_MAX_MCAST];
};
@@ -756,17 +755,15 @@ static void veth_set_multicast_list(stru
write_lock_irqsave(&port->mcast_gate, flags);
- if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
- printk(KERN_INFO "%s: Promiscuous mode enabled.\n",
- dev->name);
+ if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
+ (dev->mc_count > VETH_MAX_MCAST)) {
port->promiscuous = 1;
- } else if ( (dev->flags & IFF_ALLMULTI)
- || (dev->mc_count > VETH_MAX_MCAST) ) {
- port->all_mcast = 1;
} else {
struct dev_mc_list *dmi = dev->mc_list;
int i;
+ port->promiscuous = 0;
+
/* Update table */
port->num_mcast = 0;
@@ -1145,12 +1142,9 @@ static inline int veth_frame_wanted(stru
if ( (mac_addr == port->mac_addr) || (mac_addr == 0xffffffffffff0000) )
return 1;
- if (! (((char *) &mac_addr)[0] & 0x01))
- return 0;
-
read_lock_irqsave(&port->mcast_gate, flags);
- if (port->promiscuous || port->all_mcast) {
+ if (port->promiscuous) {
wanted = 1;
goto out;
}
-
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