Re: [PATCH 2/2] USB: ehci: tegra: Align DMA transfers to 32 bytes

[Greg KH]

On Sat, Dec 18, 2010 at 12:17:40AM +0100, Oliver Neukum wrote:
> Am Samstag, 18. Dezember 2010, 00:09:40 schrieb Greg KH:
> > I still don't like it, it feels like a hack that is not going to be able
> > to be maintained very well.
> > 
> > And I still think the individual drivers should be fixed...
> > 
> 
> But they are not buggy. The USB API was written under the
> assumption that HCDs can deal with byte level granularity and alignment.
> Hence the network driver pass DMA-able memory with an alignment
> that suits them.

Ok, fair enough.

But I still don't like that urb flag stuff as a solution to this...

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/