On Mon, Apr 14, 2014 at 02:30:01PM +0800, Barry Song wrote: > From: Qipan Li <[email protected]> > > sometimes t->tx can be equal with t->rx. for example, spidev will make > tx and rx point to spidev->buffer at the same time. currently, for this > case, we map the buffer BIDIRECTION to fix the cache consistency.
I've applied this but such usage is out of spec - do we have any drivers doing this in mainline?
signature.asc
Description: Digital signature
