Commit 536ba2e0 authored by Haiyang Zhang's avatar Haiyang Zhang Committed by David S. Miller
Browse files

hv_netvsc: Set needed_headroom according to VF 



Set needed_headroom according to VF if VF needs a bigger
headroom.

Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2b4cd14f

drivers/net/hyperv/netvsc_drv.c

+5 −0
Original line number Diff line number Diff line
@@ -2384,6 +2384,9 @@ static int netvsc_register_vf(struct net_device *vf_netdev) 
	dev_hold(vf_netdev);

	rcu_assign_pointer(net_device_ctx->vf_netdev, vf_netdev);



	if (ndev->needed_headroom < vf_netdev->needed_headroom)

		ndev->needed_headroom = vf_netdev->needed_headroom;



	vf_netdev->wanted_features = ndev->features;

	netdev_update_features(vf_netdev);
@@ -2462,6 +2465,8 @@ static int netvsc_unregister_vf(struct net_device *vf_netdev) 
	RCU_INIT_POINTER(net_device_ctx->vf_netdev, NULL);

	dev_put(vf_netdev);



	ndev->needed_headroom = RNDIS_AND_PPI_SIZE;



	return NOTIFY_OK;

}