函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\debug.c Create Date:2022-07-27 11:35:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:debug_dma_sync_single_for_cpu

函数原型:void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, int direction)

返回类型:void

参数:

类型参数名称
struct device *dev
dma_addr_tdma_handle
size_tsize
intdirection
1540  如果此条件成立可能性小(为编译器优化)(dma_debug_disabled())则返回
1543  type等于dma_debug_single
1544  dev等于dev
1545  dev_addr等于dma_handle
1546  size等于size
1547  direction等于direction
1548  sg_call_ents等于0
1550  check_sync(dev, & ref, true)