K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2014-06-11T20:46:23.545545Z
K 7
svn:log
V 283
- Unmap static DMA buffers allocated via bus_dmemem_alloc() before
  freeing them instead of after.
- Check the bus address of a static DMA buffer to decide if the associated
  map should be unloaded.
- Don't try to destroy bus dma maps for static DMA buffers.

Reviewed by:	davidcs

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