dma-debug cleanups, including removing the arch hook

[Christoph Hellwig <hch@xxxxxx>]

Hi all,

this series has a few dma-debug cleanups, most notably removing the need
for architectures to explicitly initialize dma-debug.
--
To unsubscribe from this list: send the line "unsubscribe sparclinux" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html