| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 */ |