Re: [RFC] net: usbnet: add pre and post_reset support

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Hello.

On 10-10-2012 18:34, Bjørn Mork wrote:

Signed-off-by: Bjørn Mork <bjorn@xxxxxxx>
---
What do you think about something like this? Does it have to
be more complicated?  Somewhat tested, and seems to do the
job for me.


  drivers/net/usb/usbnet.c   |   32 ++++++++++++++++++++++++++++++++
  include/linux/usb/usbnet.h |    2 ++
  2 files changed, 34 insertions(+)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index fc9f578..2f60b2c 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1592,6 +1592,38 @@ int usbnet_resume (struct usb_interface *intf)
  }
  EXPORT_SYMBOL_GPL(usbnet_resume);
+int usbnet_pre_reset (struct usb_interface *intf)
+{
+	struct usbnet		*dev = usb_get_intfdata(intf);
+
+	if (!dev->suspend_count++) {
+		netif_device_detach (dev->net);
+		usbnet_terminate_urbs(dev);
+		usb_kill_urb(dev->interrupt);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_pre_reset);
+
+int usbnet_post_reset (struct usb_interface *intf)
+{
+	struct usbnet		*dev = usb_get_intfdata(intf);
+
+	if (!--dev->suspend_count) {
+		/* resume interrupt URBs */
+		if (dev->interrupt && test_bit(EVENT_DEV_OPEN, &dev->flags))
+			usb_submit_urb(dev->interrupt, GFP_NOIO);
+
+		netif_device_attach (dev->net);
+		if (test_bit(EVENT_DEV_OPEN, &dev->flags)) {
+			if (!(dev->txq.qlen >= TX_QLEN(dev)))
+				netif_tx_wake_all_queues(dev->net);
+			tasklet_schedule (&dev->bh);
+		}
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_post_reset);
/*-------------------------------------------------------------------------*/

I suppose you didn't run it thru scripts/checkpatch.pl? It would woran about spaces before (...

WBR, Sergei

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