diff options
| author | Stephen Hemminger <stephen@networkplumber.org> | 2018-03-27 11:28:48 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-29 11:45:06 -0400 |
| commit | f03dbb06dc380274e351ca4b1ee1587ed4529e62 (patch) | |
| tree | 4eb44328d5d95796eef10bd3c17a25fbb1bde3ba | |
| parent | 5568cdc368c349eee7b5fc48bc956234a0828d71 (diff) | |
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: 009f766ca238 ("hv_netvsc: filter multicast/broadcast")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/hyperv/rndis_filter.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index a6ec41c399d6..465c42e30508 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -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; |