RE: remove dma_alloc_noncoherent

From: David Laight
Date: Tue Jun 20 2017 - 08:44:21 EST

From: Christoph Hellwig
> Sent: 16 June 2017 08:17
> For many years we've had the dma_alloc_attrs API that is more flexible
> than dma_alloc_noncoherent. This series moves the remaining users over
> to the attrs API.

And most of the callers probably only want to specify 'noncoherent'.
Grepping the source for other uses is easier if the wrapper is left.