函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\ioctl.c Create Date:2022-07-29 10:36:19
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mpat_ptr_ioctl - generic implementation of

函数原型：long compat_ptr_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

返回类型：long

参数：

类型参数名称
struct file *file
unsigned intcmd
unsigned longarg
785  如果非unlocked_ioctl则返回:负No ioctl command
788  返回:unlocked_ioctl(file, cmd, (unsignedlong)A pointer passed in from user mode. This should not* be used for syscall parameters, just declare them* as pointers because the syscall entry code will have* appropriately converted them already.)