On Fri, 1 Jun 2018, Sebastian Andrzej Siewior wrote:
> On 2018-05-22 15:14:17 [-0400], Alan Stern wrote:
> > Sorry, I don't understand that sentence at all. And I don't see how it
> > could be relevant to the point I was trying to make.
> >
> > Consider, for example, drivers/hid/usbhid/hid-core
On 2018-05-22 15:14:17 [-0400], Alan Stern wrote:
> Sorry, I don't understand that sentence at all. And I don't see how it
> could be relevant to the point I was trying to make.
>
> Consider, for example, drivers/hid/usbhid/hid-core.c. In that file,
> hid_io_error() is called by hid_irq_in(), w
On 2018-05-22 15:14:17 [-0400], Alan Stern wrote:
> On Tue, 22 May 2018, Sebastian Andrzej Siewior wrote:
>
> > On 2018-05-07 11:37:29 [-0400], Alan Stern wrote:
> > > > As far as I understand it there should be no deadlock. Without the
> > > > local_irq_save() things should not deadlock because t
On Tue, 22 May 2018, Sebastian Andrzej Siewior wrote:
> On 2018-05-07 11:37:29 [-0400], Alan Stern wrote:
> > > As far as I understand it there should be no deadlock. Without the
> > > local_irq_save() things should not deadlock because the HCD invokes USB
> > > driver's (usb-storage for instance)
On 2018-05-07 11:37:29 [-0400], Alan Stern wrote:
> > As far as I understand it there should be no deadlock. Without the
> > local_irq_save() things should not deadlock because the HCD invokes USB
> > driver's (usb-storage for instance) ->complete callback always in the
> > same way. If you mix the
On Mon, 7 May 2018, Sebastian Andrzej Siewior wrote:
> On 2018-05-04 16:07:22 [-0400], Alan Stern wrote:
> > On Fri, 4 May 2018, Sebastian Andrzej Siewior wrote:
> >
> > > Hi Alan,
> > >
> > > I posted a RFC [0] to let the HCD complete the URB in threaded-IRQ
> > > context to avoid the softirq/t
On 2018-05-04 16:07:22 [-0400], Alan Stern wrote:
> On Fri, 4 May 2018, Sebastian Andrzej Siewior wrote:
>
> > Hi Alan,
> >
> > I posted a RFC [0] to let the HCD complete the URB in threaded-IRQ
> > context to avoid the softirq/tasklet. Mauro reported that this does not
> > help him and never cam
On Fri, 4 May 2018, Sebastian Andrzej Siewior wrote:
> Hi Alan,
>
> I posted a RFC [0] to let the HCD complete the URB in threaded-IRQ
> context to avoid the softirq/tasklet. Mauro reported that this does not
> help him and never came back after that.
> You did not oppose the approach as long as
