https://github.com/torvalds/linux
Raw File
Tip revision: 31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c authored by Linus Torvalds on 11 November 2019, 00:17:15 UTC
Linux 5.4-rc7
Tip revision: 31f4f5b
ioctl.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_IOCTL_H
#define _ASM_GENERIC_IOCTL_H

#include <uapi/asm-generic/ioctl.h>

#ifdef __CHECKER__
#define _IOC_TYPECHECK(t) (sizeof(t))
#else
/* provoke compile error for invalid uses of size argument */
extern unsigned int __invalid_size_argument_for_IOC;
#define _IOC_TYPECHECK(t) \
	((sizeof(t) == sizeof(t[1]) && \
	  sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
	  sizeof(t) : __invalid_size_argument_for_IOC)
#endif

#endif /* _ASM_GENERIC_IOCTL_H */
back to top