diff options
| author | Derrick Pallas <pallas@meraki.com> | 2015-02-18 00:50:25 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-20 15:49:07 -0500 |
| commit | f81edc6ac1e1e2e2cbe98bcd6ef5ebb7afb00807 (patch) | |
| tree | 064426f731f97f44fb09bd6d17dcf237054b7111 | |
| parent | 7b4577a9da3702049650f7095506e9afd9f68849 (diff) | |
ethernet/ixp4xx: prevent allmulti from clobbering promisc
If both promisc and allmulti are set, promisc should trump allmulti and
disable the MAC filter; otherwise, the interface is not really promisc.
Previously, this code checked IFF_ALLMULTI prior to and without regard for
IFF_PROMISC; if both were set, only multicast and direct unicast traffic
would make it through the filter.
Signed-off-by: Derrick Pallas <pallas@meraki.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c index f7e0f0f7c2e2..9e16a2819d48 100644 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c @@ -938,7 +938,7 @@ static void eth_set_mcast_list(struct net_device *dev) int i; static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; - if (dev->flags & IFF_ALLMULTI) { + if ((dev->flags & IFF_ALLMULTI) && !(dev->flags & IFF_PROMISC)) { for (i = 0; i < ETH_ALEN; i++) { __raw_writel(allmulti[i], &port->regs->mcast_addr[i]); __raw_writel(allmulti[i], &port->regs->mcast_mask[i]); |