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_mapping_error

Proto:void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)

Type:void

Parameter:

TypeParameterName
struct device *dev
dma_addr_tdma_addr
1293  If Value for the false possibility is greater at compile time(dma_debug_disabled()) Then Return
1296  dev = dev
1297  dev_addr = dma_addr
1298  bucket = Request exclusive access to a hash bucket for a given dma_debug_entry.
1301  If Not exact_match( & ref, entry) Then Continue
1314  If map_err_type == MAP_ERR_NOT_CHECKED Then
1315  map_err_type = MAP_ERR_CHECKED
1316  Break
1320  Give up exclusive access to the hash bucket