On Thu, 2013-09-19 at 22:25 +0100, Russell King wrote: > Provide a helper to set both the DMA and coherent DMA masks to the > same value - this avoids duplicated code in a number of drivers, > sometimes with buggy error handling, and also allows us identify > which drivers do things differently. > > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> > --- > Documentation/DMA-API-HOWTO.txt | 37 ++++++++++++++++++++++--------------- > Documentation/DMA-API.txt | 8 ++++++++ > include/linux/dma-mapping.h | 14 ++++++++++++++ > 3 files changed, 44 insertions(+), 15 deletions(-) > > diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt > index 14129f1..5e98303 100644 > --- a/Documentation/DMA-API-HOWTO.txt > +++ b/Documentation/DMA-API-HOWTO.txt [...] > -dma_set_coherent_mask() will always be able to set the same or a > -smaller mask as dma_set_mask(). However for the rare case that a > +The coherent coherent mask will always be able to set the same or a > +smaller mask as the streaming mask. However for the rare case that a [...] The new wording doesn't make sense; a mask doesn't set itself. I would suggest: "The coherent mask can always be set to the same or a smaller mask than the streaming mask." Ben. -- Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
