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 */
  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 */