函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\bitmap.c Create Date:2022-07-27 07:17:29
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：map_parselist_user()*@ubuf: pointer to user buffer containing string.*@ulen: buffer size in bytes. If string is smaller than this* then it must be terminated with a \0.*@maskp: pointer to bitmap array that will contain result.

函数原型：int bitmap_parselist_user(const char __user *ubuf, unsigned int ulen, unsigned long *maskp, int nmaskbits)

返回类型：int

参数：

类型参数名称
const char __user *ubuf
unsigned intulen
unsigned long *maskp
intnmaskbits
702  buf等于memdup_user_nul - duplicate memory region from user space and NUL-terminate*@src: source address in user space*@len: number of bytes to copy* Return: an ERR_PTR() on failure.
703  如果是错误则返回:错误
706  ret等于map_parselist - convert list format ASCII string to bitmap*@buf: read user string from this buffer; must be terminated* with a \0 or \n
708  kfree(buf)
709  返回:ret
调用者
名称描述
__test_bitmap_parselist