1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_IOCTL_H
3 #define _ASM_GENERIC_IOCTL_H
5 #include <uapi/asm-generic/ioctl.h>
8 #define _IOC_TYPECHECK(t) (sizeof(t))
10 /* provoke compile error for invalid uses of size argument */
11 extern unsigned int __invalid_size_argument_for_IOC;
12 #define _IOC_TYPECHECK(t) \
13 ((sizeof(t) == sizeof(t[1]) && \
14 sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
15 sizeof(t) : __invalid_size_argument_for_IOC)
18 #endif /* _ASM_GENERIC_IOCTL_H */