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 11:35:17
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：debug_dma_sync_single_for_device

函数原型：void debug_dma_sync_single_for_device(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
1560  如果此条件成立可能性小(为编译器优化)(dma_debug_disabled())则返回
1563  type等于dma_debug_single
1564  dev等于dev
1565  dev_addr等于dma_handle
1566  size等于size
1567  direction等于direction
1568  sg_call_ents等于0
1570  check_sync(dev, & ref, false)