Cc: netdev
On Fri, Jun 14, 2013 at 9:38 PM, Jussi Kivilinna wrote:
> Appearently some out-of-tree USB host drivers do not handle DMA alignment for
Looks these host drivers have to face the fact that the transfer buffer is often
DMA non-aligned from network device drivers(in fact, the buffer is f
On 14.06.2013 23:20, Alan Stern wrote:
> On Fri, 14 Jun 2013, Jussi Kivilinna wrote:
>
>> Appearently some out-of-tree USB host drivers do not handle DMA alignment for
>> URB buffers and let core/hcd.c to do the mapping on architectures that have
>> minimum DMA alignment requirements. This leads t
On 15.06.2013 10:41, Ming Lei wrote:
> Cc: netdev
>
> On Fri, Jun 14, 2013 at 9:38 PM, Jussi Kivilinna
> wrote:
>> Appearently some out-of-tree USB host drivers do not handle DMA alignment for
>
> Looks these host drivers have to face the fact that the transfer buffer is
> often
> DMA non-alig
On Sat, Jun 15, 2013 at 6:19 PM, Jussi Kivilinna wrote:
> On 15.06.2013 10:41, Ming Lei wrote:
>> Cc: netdev
>>
>> On Fri, Jun 14, 2013 at 9:38 PM, Jussi Kivilinna
>> wrote:
>>> Appearently some out-of-tree USB host drivers do not handle DMA alignment
>>> for
>>
>> Looks these host drivers have
On 15.06.2013 15:07, Ming Lei wrote:
> On Sat, Jun 15, 2013 at 6:19 PM, Jussi Kivilinna
> wrote:
>> On 15.06.2013 10:41, Ming Lei wrote:
>>> Cc: netdev
>>>
>>> On Fri, Jun 14, 2013 at 9:38 PM, Jussi Kivilinna
>>> wrote:
Appearently some out-of-tree USB host drivers do not handle DMA alignm
On 15.06.2013 16:10, Jussi Kivilinna wrote:
[...]
>>
>>>
>
> Instead of fixing host drivers, users end up posting bug reports against
> those USB device drivers that use unaligned buffers for URB; such as with
> rtl8192cu
> (http://thread.gmane.org/gmane.linux.kernel.wirel
On Sat, Jun 15, 2013 at 9:10 PM, Jussi Kivilinna wrote:
> On 15.06.2013 15:07, Ming Lei wrote:
>> On Sat, Jun 15, 2013 at 6:19 PM, Jussi Kivilinna
>> wrote:
>>> On 15.06.2013 10:41, Ming Lei wrote:
Cc: netdev
On Fri, Jun 14, 2013 at 9:38 PM, Jussi Kivilinna
wrote:
> App
