Am Montag, 31. Mai 2004 15:16 schrieb Vojtech Pavlik:
> On Mon, May 31, 2004 at 03:05:03PM +0200, Oliver Neukum wrote:
> > Hi,
> >
> > fix access to urb->status by introduction of an explicit flag
> > for finished data transfer.
> >
> > Regards
> > Oliver
> >
> > Signed-off-by: Oliver Neukum <[EMAIL PROTECTED]>
>
> Now that you're fixing this -- Is an unsigned char variable considered
> enough? I've heard about atomicity concerns on ARM, and also there might
> be problems with unflushed caches - mb()s may be needed ...
If so, IMHO we have a much larger problem than just this patch.
IIRC the kernel may assume that caches are synchronized. I need
more input on this to give a definite and sensible answer.
Regards
Oliver
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