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Commit f03dbb06 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

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: 009f766c ("hv_netvsc: filter multicast/broadcast")
Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5568cdc3

drivers/net/hyperv/rndis_filter.c

+1 −1
Original line number Diff line number Diff line
@@ -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;