swiotlb: minor fixes for 2.6.35

[Konrad Rzeszutek Wilk]

Attached are four simple patches that clean up the SWIOTLB library a bit.
There aren't that important, but I figured since I am doing some other work
in that layer I might as well fix some things that looked out of place.

Oh, and the first one is backwards compatible with the "old" syntax of
changing SWIOTLB IOMMU allocation amount ("swiotlb=1024,force").

Please take a moment to review them.

Konrad Rzeszutek Wilk (4):
      swiotlb: fix: Update 'setup_io_tlb_npages' to accept both arguments in either order.
      swiotlb: Normalize the swiotlb_init_* function's naming syntax.
      swiotlb: Make printk's use same prefix and include dev_err when possible.
      swiotlb: Fix checkpatch warnings.

---

 Documentation/x86/x86_64/boot-options.txt |    4 +-
 lib/swiotlb.c                             |   84 +++++++++++++++--------------
 2 files changed, 46 insertions(+), 42 deletions(-)

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