Maybe this helps a bit: later I found that something similar occurs in
drivers/parisc/{ccio-dma.c, sba_iommu.c}:
1010: .alloc_consistent = ccio_alloc_consistent,
.alloc_noncoherent = ccio_alloc_consistent,
1036: .alloc_consistent = sba_alloc_consistent,
.alloc_noncoherent = sba_alloc_consistent,
However in these files the functions {ccio_alloc, sba_alloc}_noncoherent
do not exist.
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