函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\core.c Create Date:2022-07-27 14:02:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：____bpf_user_rnd_u32

函数原型：static inline __attribute__((__always_inline__)) u64 ____bpf_user_rnd_u32(void)

返回类型：u64

参数：无

2126  state等于Must be an lvalue. Since @var must be a simple identifier,* we force a syntax error here if it isn't.(RNG for unpriviledged user space with separated state from prandom_u32(). )
2127  res等于随机数产生器
2128  The weird & is necessary because sparse considers (void)(var) to be* a direct dereference of percpu variable (var).(RNG for unpriviledged user space with separated state from prandom_u32(). )
2130  返回:res