Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\dma-mapping.h Create Date:2022-07-28 05:51:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:dma_unmap_resource

Proto:static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr, size_t size, enum dma_data_direction dir, unsigned long attrs)

Type:void

Parameter:

TypeParameterName
struct device *dev
dma_addr_taddr
size_tsize
enum dma_data_directiondir
unsigned longattrs
368  ops = get_dma_ops(dev)
370  BUG_ON(!valid_dma_direction(dir))
371  If Not dma_is_direct(ops) && unmap_resource Then unmap_resource(dev, addr, size, dir, attrs)
373  debug_dma_unmap_resource(dev, addr, size, dir)