linux/include/asm-generic/ioctl.h
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   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 */
   7extern 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
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