LXR linux/include/asm-generic/ioctl.h

   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 */
  11extern 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