p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

hv_netvsc: enable multicast if necessary 

My recent change to netvsc drive in how receive flags are handled
broke multicast.  The Hyper-v/Azure virtual interface there is not a
multicast filter list, filtering is only all or none. The driver must
enable all multicast if any multicast address is present.

Fixes: 009f766ca2 ("hv_netvsc: filter multicast/broadcast")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2018-03-27 11:28:48 -07:00 committed by David S. Miller
parent 5568cdc368
commit f03dbb06dc
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/hyperv/rndis_filter.c
View File

@ -858,7 +858,7 @@ static void rndis_set_multicast(struct work_struct *w)
if (flags & IFF_PROMISC) {
filter = NDIS_PACKET_TYPE_PROMISCUOUS;
} else {
if (flags & IFF_ALLMULTI)
if (!netdev_mc_empty(rdev->ndev) || (flags & IFF_ALLMULTI))
filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
if (flags & IFF_BROADCAST)
filter |= NDIS_PACKET_TYPE_BROADCAST;