Function at drivers/dma/virt-dma.h, line 208 References: drivers/dma/amba-pl08x.c, line 2198 drivers/dma/dma-axi-dmac.c, line 458 drivers/dma/dma-jz4780.c, line 597 drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c, line 424 drivers/dma/fsl-edma.c, line 27 drivers/dma/hisi_dma.c, line 336 drivers/dma/imx-sdma.c, line 1153 drivers/dma/lgm/lgm-dma.c, line 1051 drivers/dma/mediatek/mtk-cqdma.c, line 596 drivers/dma/mediatek/mtk-hsdma.c, line 783 drivers/dma/milbeaut-hdmac.c, line 318 drivers/dma/ptdma/ptdma-dmaengine.c, line 37 drivers/dma/pxa_dma.c, line 1218 drivers/dma/s3c24xx-dma.c, line 748 drivers/dma/stm32-dma.c, line 517 drivers/dma/stm32-mdma.c, line 1264 drivers/dma/uniphier-xdmac.c, line 431 drivers/dma/xilinx/xilinx_dpdma.c, line 1403