Merge branch 'net-usbnet-convert-to-new-tasklet-api'

Emil Renner Berthing says:

====================
net: usbnet: convert to new tasklet API

This converts the usbnet driver to use the new tasklet API introduced in
commit 12cc923f ("tasklet: Introduce new initialization API")

It is split into two commits for ease of reviewing.
====================

Link: https://lore.kernel.org/r/20210123173221.5855-1-esmil@mailme.dkSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/usb/usbnet.c

@@ -1539,11 +1539,11 @@ static void usbnet_bh (struct timer_list *t)
 	}
 }
 
-static void usbnet_bh_tasklet(unsigned long data)
+static void usbnet_bh_tasklet(struct tasklet_struct *t)
 {
-	struct timer_list *t = (struct timer_list *)data;
+	struct usbnet *dev = from_tasklet(dev, t, bh);
 
-	usbnet_bh(t);
+	usbnet_bh(&dev->delay);
 }
 
 
@@ -1673,8 +1673,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	skb_queue_head_init (&dev->txq);
 	skb_queue_head_init (&dev->done);
 	skb_queue_head_init(&dev->rxq_pause);
-	dev->bh.func = usbnet_bh_tasklet;
-	dev->bh.data = (unsigned long)&dev->delay;
+	tasklet_setup(&dev->bh, usbnet_bh_tasklet);
 	INIT_WORK (&dev->kevent, usbnet_deferred_kevent);
 	init_usb_anchor(&dev->deferred);
 	timer_setup(&dev->delay, usbnet_bh, 0);