caif_virtio: use new tasklet API

This converts the driver to use the new tasklet API introduced in
commit 12cc923f ("tasklet: Introduce new initialization API")
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/caif/caif_virtio.c

@@ -598,9 +598,9 @@ static netdev_tx_t cfv_netdev_tx(struct sk_buff *skb, struct net_device *netdev)
 	return NETDEV_TX_OK;
 }
 
-static void cfv_tx_release_tasklet(unsigned long drv)
+static void cfv_tx_release_tasklet(struct tasklet_struct *t)
 {
-	struct cfv_info *cfv = (struct cfv_info *)drv;
+	struct cfv_info *cfv = from_tasklet(cfv, t, tx_release_tasklet);
 	cfv_release_used_buf(cfv->vq_tx);
 }
 
@@ -716,9 +716,7 @@ static int cfv_probe(struct virtio_device *vdev)
 	cfv->ctx.head = USHRT_MAX;
 	netif_napi_add(netdev, &cfv->napi, cfv_rx_poll, CFV_DEFAULT_QUOTA);
 
-	tasklet_init(&cfv->tx_release_tasklet,
-		     cfv_tx_release_tasklet,
-		     (unsigned long)cfv);
+	tasklet_setup(&cfv->tx_release_tasklet, cfv_tx_release_tasklet);
 
 	/* Carrier is off until netdevice is opened */
 	netif_carrier_off(netdev);