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SubjectRe: [PATCHv3] drivers/net/usb: Add new driver ipheth
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On Fri, 2010-04-02 at 19:53 +0200, "L. Alberto Giménez" wrote:
> On 04/02/2010 07:21 PM, Ben Hutchings wrote:
> > On Fri, 2010-04-02 at 19:15 +0200, "L. Alberto Giménez" wrote:
> >> On 04/01/2010 01:18 AM, Ben Hutchings wrote:
> >>> On Wed, 2010-03-31 at 21:42 +0200, L. Alberto Giménez wrote:
> >>> [...]
> >>>> --- /dev/null
> >>>> +++ b/drivers/net/usb/ipheth.c
> >>> [...]
> >>>> + usb_fill_bulk_urb(dev->tx_urb, udev,
> >>>> + usb_sndbulkpipe(udev, dev->bulk_out),
> >>>> + dev->tx_buf, IPHETH_BUF_SIZE,
> >>>> + ipheth_sndbulk_callback,
> >>>> + dev);
> >>>> + dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
> >>>> +
> >>>> + retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
> >>>> + if (retval) {
> >>>> + err("%s: usb_submit_urb: %d", __func__, retval);
> >>>> + dev->stats.tx_errors++;
> >>>> + dev_kfree_skb_irq(skb);
> >>>> + } else {
> >>>> + net->trans_start = jiffies;
> >>> No longer needed.
> >> What is not longer needed? The assignment, the whole "else" branch? If
> >> the assignment is what is not needed, can I just remove that line, right?
> >
> > The assignment is not needed.
>
> Hi,
>
> I've been looking into this and it seems that the net_device.trans_start
> field is now deprecated in favor of net_device.rx_queue.trans_start
[...]

The networking core updates netdev_queue::trans_start by calling
txq_trans_update() where necessary. Drivers should not touch either
net_device::trans_start or netdev_queue::trans_start any more.

Ben.

--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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