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
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