1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_GENERIC_IOCTL_H 3 #define _ASM_GENERIC_IOCTL_H 4 5 #include <uapi/asm-generic/ioctl.h> 6 7 #ifdef __CHECKER__ 8 #define _IOC_TYPECHECK(t) (sizeof(t)) 9 #else 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) 16 #endif 17 18 #endif /* _ASM_GENERIC_IOCTL_H */ 19