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The driver-specific unmap code was removed in:
commit 54f8d501e842879143e867e70996574a54d1e130
Author: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri Oct 18 19:35:32 2013 +0200
dmaengine: remove DMA unmap from drivers
which had the side-effect of not unmapping the self-test mappings.
Fix this by using dmaengine_unmap_data in the self-test routines.
In addition, since dmaengine_unmap() assumes that all mappings were created
with dma_map_page, this commit changes the single mapping to a page mapping
to avoid an incorrect unmapping of the memcpy self-test.
The allocation could be changed to be alloc_page(), but sticking to kmalloc
results in a less intrusive patch. The size of the test buffer is increased,
since dma_map_page() seem to fail when the source and destination pages are
the same page.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
d16695a750