On Saturday 15 June 2013 16:22:30 Jussi Kivilinna wrote: > Hm.. rethink this a bit. > > Transfer buffer might be dma aligned but shorter than cacheline and end of cacheline > used as something else. Manual alignment by host driver does not catch that > or fix that. > So, yes.. dma mapping should work with unaligned buffers, but maybe the actual > problem is multiple buffers from same cacheline. The buffers kmalloc() returns are OK in that regard. A driver that uses a buffer for anything but buffering is buggy. Regards Oliver -- 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
