IOAT_DESCS_PER_2M  335 drivers/dma/ioat/dma.c 	chunk = idx / IOAT_DESCS_PER_2M;
IOAT_DESCS_PER_2M  336 drivers/dma/ioat/dma.c 	idx &= (IOAT_DESCS_PER_2M - 1);