https://github.com/torvalds/linux
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Tip revision: 6eaae198076080886b9e7d57f4ae06fa782f90ef authored by Linus Torvalds on 23 July 2023, 22:24:10 UTC
Linux 6.5-rc3
Tip revision: 6eaae19
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 */
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