1 #ifndef _ASM_GENERIC_IOCTL_H 2 #define _ASM_GENERIC_IOCTL_H 3 4 #include <uapi/asm-generic/ioctl.h> 5 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 */ 13