dmaengine: ioat: Allocate correct size for descriptor chunk

dma_alloc_coherent() is called with a fixed SZ_2M size, but frees happen
with IOAT_CHUNK_SIZE. Recently, IOAT_CHUNK_SIZE was reduced to 512M but
the allocation did not change. To fix, change to using the
IOAT_CHUNK_SIZE define.

This was caught with the upcoming patchset for converting Intel platforms to the
dma-iommu implementation. It has a warning when the unmapped size differs from
the mapped size.

Fixes: a02254f8a676 ("dmaengine: ioat: Decreasing allocation chunk size 2M->512K")
Suggested-by: Robin Murphy <[email protected]>
Signed-off-by: Logan Gunthorpe <[email protected]>
Acked-by: Dave Jiang <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Dan Williams <[email protected]>
Link: https://lore.kernel.org/intel-gfx/[email protected]/
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

0 files changed, 0 insertions, 0 deletions