Documentation/DMA-API-HOWTO: update dma_mask sections

We don't require drivers to guess a DMA mask that might actually
match the system capabilities any more, so fix up the documentation
to clear this up.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2019-02-15 09:01:53 +01:00
commit 9eb9e96e97