text: /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  /* const.h: Macros for dealing with constants.  */
  
  #ifndef _LINUX_CONST_H
  #define _LINUX_CONST_H
  
  /* Some constant macros are used in both assembler and
   * C code.  Therefore we cannot annotate them always with
   * 'UL' and other type specifiers unilaterally.  We
   * use the following macros to deal with this.
   *
   * Similarly, _AT() will cast an expression with a type in C, but
   * leave it unchanged in asm.
   */
  
  #ifdef __ASSEMBLY__
  #define _AC(X,Y)	X
  #define _AT(T,X)	X
  #else
  #define __AC(X,Y)	(X##Y)
  #define _AC(X,Y)	__AC(X,Y)
  #define _AT(T,X)	((T)(X))
  #endif
  
  #define _UL(x)		(_AC(x, UL))
  #define _ULL(x)		(_AC(x, ULL))
  
  #define _BITUL(x)	(_UL(1) << (x))
  #define _BITULL(x)	(_ULL(1) << (x))
  
  #define __ALIGN_KERNEL(x, a)		__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
  #define __ALIGN_KERNEL_MASK(x, mask)	(((x) + (mask)) & ~(mask))
  
  #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
  
  #endif /* _LINUX_CONST_H */