Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\debug.c Create Date:2022-07-28 10:35:17
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:debug_dma_unmap_page

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

Type:void

Parameter:

TypeParameterName
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  If Value for the false possibility is greater at compile time(dma_debug_disabled()) Then Return
1337  check_unmap( & ref)