1 #ifndef _ASM_GENERIC_IOCTL_H
2 #define _ASM_GENERIC_IOCTL_H
4 #include <uapi/asm-generic/ioctl.h>
6 /* provoke compile error for invalid uses of size argument */
7 extern unsigned int __invalid_size_argument_for_IOC;
8 #define _IOC_TYPECHECK(t) \
9 ((sizeof(t) == sizeof(t[1]) && \
10 sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
11 sizeof(t) : __invalid_size_argument_for_IOC)
12 #endif /* _ASM_GENERIC_IOCTL_H */