drivers/net/virtio_net.c

2894 	struct virtio_net_ctrl_mac *mac_data;
2935 		      (2 * sizeof(mac_data->entries)), GFP_ATOMIC);
2936 	mac_data = buf;
2946 	mac_data->entries = cpu_to_virtio32(vi->vdev, uc_count);
2949 		memcpy(&mac_data->macs[i++][0], ha->addr, ETH_ALEN);
2951 	sg_set_buf(&sg[0], mac_data,
2952 		   sizeof(mac_data->entries) + (uc_count * ETH_ALEN));
2955 	mac_data = (void *)&mac_data->macs[uc_count][0];
2957 	mac_data->entries = cpu_to_virtio32(vi->vdev, mc_count);
2960 		memcpy(&mac_data->macs[i++][0], ha->addr, ETH_ALEN);
2964 	sg_set_buf(&sg[1], mac_data,
2965 		   sizeof(mac_data->entries) + (mc_count * ETH_ALEN));