From: Ming Lei
> On Mon, Jan 13, 2014 at 9:26 PM, David Laight wrote:
> >>
> >> I believe all processing use the urb->num_sgs field to limit the number
> >> of entries. Common interfaces like dma_map_sg() and for_each_sg() limit
> >> their processing to "nents" entries, and the USB code use the v
On Mon, Jan 13, 2014 at 9:26 PM, David Laight wrote:
>>
>> I believe all processing use the urb->num_sgs field to limit the number
>> of entries. Common interfaces like dma_map_sg() and for_each_sg() limit
>> their processing to "nents" entries, and the USB code use the value of
>> urb->num_sgs f
From: Bjørn Mork [mailto:bj...@mork.no]
> David Laight writes:
> > From: Bjørn Mork
> >> David Laight writes:
> >>
> >> > The patch you submitted is wrong.
> >> > Whoever wrote the sg interface was on crack.
> >> > The 'last' marker needs moving as well.
> >>
> >> I'm afraid I don't understand wh
David Laight writes:
> From: Bjørn Mork
>> David Laight writes:
>>
>> > The patch you submitted is wrong.
>> > Whoever wrote the sg interface was on crack.
>> > The 'last' marker needs moving as well.
>>
>> I'm afraid I don't understand what you meant by this.
>>
>> sg_init_table() set the 'la
From: Bjørn Mork
> David Laight writes:
>
> > The patch you submitted is wrong.
> > Whoever wrote the sg interface was on crack.
> > The 'last' marker needs moving as well.
>
> I'm afraid I don't understand what you meant by this.
>
> sg_init_table() set the 'last' marker. AFAICS, you don't ne
David Laight writes:
> The patch you submitted is wrong.
> Whoever wrote the sg interface was on crack.
> The 'last' marker needs moving as well.
I'm afraid I don't understand what you meant by this.
sg_init_table() set the 'last' marker. AFAICS, you don't need to change
it unless you want to
From: Bjørn Mork
> Thomas Kear writes:
>
> > On Sat, Jan 11, 2014 at 11:09 AM, Bjrn Mork wrote:
> >> But looking at the code I think I found and obvious miss in the SG list
> >> initialisation. I'll post a proposed fix for that. Would be good if
> >> someone was able to test it.
> >
> > I've b
Thomas Kear writes:
> On Sat, Jan 11, 2014 at 11:09 AM, Bjørn Mork wrote:
>> But looking at the code I think I found and obvious miss in the SG list
>> initialisation. I'll post a proposed fix for that. Would be good if
>> someone was able to test it.
>
> I've built 3.13.0-rc7-next-20140110 wi
On Sat, Jan 11, 2014 at 11:09 AM, Bjørn Mork wrote:
> But looking at the code I think I found and obvious miss in the SG list
> initialisation. I'll post a proposed fix for that. Would be good if
> someone was able to test it.
I've built 3.13.0-rc7-next-20140110 with your patch applied.
Unfortu
Ben Hutchings writes:
> On Sat, 2014-01-11 at 08:56 +1300, Thomas Kear wrote:
>> USB3 gigabit ethernet adapters with the ASIX AX88179 chipset (LevelOne
>> USB0401-V3, Plugable USB3-E1000, SIIG JU-NE0211-S1 and others) are
>> experiencing kernel panics in usb_hcd_map_urb_for_dma since 3.12.
> [...]
On Sat, 2014-01-11 at 08:56 +1300, Thomas Kear wrote:
> USB3 gigabit ethernet adapters with the ASIX AX88179 chipset (LevelOne
> USB0401-V3, Plugable USB3-E1000, SIIG JU-NE0211-S1 and others) are
> experiencing kernel panics in usb_hcd_map_urb_for_dma since 3.12.
[...]
> So far as I can tell, the d
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