[ofa-general] Problem with ipath_dma.c and dma-mapping.h

[Roland Dreier]

 > BUT I shouldn't have to do fixes like that. And the question is, if
 > this is a 64 bit machine, and the dma-mapping.h defines valid_dma_direction
 > ONLY IF you are NOT compiling for a 64 bit machine, then the Openfabrics
 > files: ipath_dma.c and/or dma-mapping.h have some kind of mistake.

It's a broken backport.  valid_dma_direction() was moved into generic
code between 2.6.18 and 2.6.19, so someone needs to add a backport patch
to handle kernels 2.6.18 and older.

 - R.