From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
Date: Tue, 19 May 2015 23:34:44 +0100
Subject: [RFC] arm: DMA-API contiguous cacheable memory
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On Wed, May 20, 2015 at 12:14:48AM +0200, Arnd Bergmann wrote:
> With that memory, you should be able to use the normal streaming
> API (dma_sync_single_for_*).

Wrong, as I've pointed out previously.  The only memory which you're
allowed to sync is with memory which has been mapped with a dma_map_*()
function.

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