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 11:35:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：debug_dma_unmap_page

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

返回类型：void

参数：

类型参数名称
struct device *dev
dma_addr_taddr
size_tsize
intdirection
1327  struct dma_debug_entry ref = {type = dma_debug_single, dev = dev, dev_addr = addr, size = size, direction = direction, }
1335  如果此条件成立可能性小(为编译器优化)(dma_debug_disabled())则返回
1337  check_unmap( & ref)