net: caif: convert to using IFF_NO_QUEUE

Signed-off-by: NPhil Sutter <phil@nwl.cc>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/caif/caif_hsi.c

@@ -1120,7 +1120,7 @@ static void cfhsi_setup(struct net_device *dev)
 	dev->type = ARPHRD_CAIF;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP;
 	dev->mtu = CFHSI_MAX_CAIF_FRAME_SZ;
-	dev->tx_queue_len = 0;
+	dev->priv_flags |= IFF_NO_QUEUE;
 	dev->destructor = free_netdev;
 	dev->netdev_ops = &cfhsi_netdevops;
 	for (i = 0; i < CFHSI_PRIO_LAST; ++i)

drivers/net/caif/caif_serial.c

@@ -427,7 +427,7 @@ static void caifdev_setup(struct net_device *dev)
 	dev->type = ARPHRD_CAIF;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP;
 	dev->mtu = CAIF_MAX_MTU;
-	dev->tx_queue_len = 0;
+	dev->priv_flags |= IFF_NO_QUEUE;
 	dev->destructor = free_netdev;
 	skb_queue_head_init(&serdev->head);
 	serdev->common.link_select = CAIF_LINK_LOW_LATENCY;

drivers/net/caif/caif_spi.c

@@ -710,7 +710,7 @@ static void cfspi_setup(struct net_device *dev)
 	dev->netdev_ops = &cfspi_ops;
 	dev->type = ARPHRD_CAIF;
 	dev->flags = IFF_NOARP | IFF_POINTOPOINT;
-	dev->tx_queue_len = 0;
+	dev->priv_flags |= IFF_NO_QUEUE;
 	dev->mtu = SPI_MAX_PAYLOAD_SIZE;
 	dev->destructor = free_netdev;
 	skb_queue_head_init(&cfspi->qhead);

drivers/net/wan/hdlc_fr.c

@@ -1096,7 +1096,7 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
 	}
 	dev->netdev_ops = &pvc_ops;
 	dev->mtu = HDLC_MAX_MTU;
-	dev->tx_queue_len = 0;
+	dev->priv_flags |= IFF_NO_QUEUE;
 	dev->ml_priv = pvc;
 
 	if (register_netdevice(dev) != 0) {

net/caif/caif_dev.c

@@ -177,7 +177,7 @@ static int transmit(struct cflayer *layer, struct cfpkt *pkt)
 	skb->protocol = htons(ETH_P_CAIF);
 
 	/* Check if we need to handle xoff */
-	if (likely(caifd->netdev->tx_queue_len == 0))
+	if (likely(caifd->netdev->priv_flags & IFF_NO_QUEUE))
 		goto noxoff;
 
 	if (unlikely(caifd->xoff))