Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-28 12:03:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:In order to pass in both the trace_array descriptor as well as the index* to the flag that the trace option file represents, the trace_array* has a character array of trace_flags_index[], which holds the index* of the bit for the flag it represents

Proto:static void get_tr_index(void *data, struct trace_array **ptr, unsigned int *pindex)

Type:void

Parameter:

TypeParameterName
void *data
struct trace_array **ptr idx == &index[0]
unsigned int *pindex
8043  pindex = data
8045  idx == &index[0] = container_of - cast a member of a structure out to the containing structure*@ptr: the pointer to the member.*@type: the type of the container struct this is embedded in.*@member: the name of the member within the struct.(data - * pindex, structtrace_array, trace_flags_index)
Caller
NameDescribe
trace_options_core_read
trace_options_core_write