On Wed, 7 August 2013 08:50:53 +0300, Jussi Kivilinna wrote: > On 06.08.2013 19:49, Jörn Engel wrote: > > On Tue, 6 August 2013 15:03:29 +0300, Jussi Kivilinna wrote: > >> > >> Patch fixes alauda not to use stack as URB transfer_buffer. URB buffers need to > >> be DMA-able, which stack is not. > >> > >> Patch is only compile tested. > > > > I have tested the driver back when I wrote it. Not sure why it worked > > then, maybe the chip in my notebook back then didn't care about > > alignment or I just got lucky with the memory allocations. > > You might not see problems with your hardware/architecture. > > "Documentation/DMA-API-HOWTO.txt" discusses about "What memory is DMA'able?". Makes sense. I've read your patch over and it also makes sense. Acked-by: Joern Engel <joern@xxxxxxxxx> Jörn -- It's just what we asked for, but not what we want! -- anonymous -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
