1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __ASM_GENERIC_BITS_PER_LONG
3#define __ASM_GENERIC_BITS_PER_LONG
4
5/*
6 * There seems to be no way of detecting this automatically from user
7 * space, so 64 bit architectures should override this in their
8 * bitsperlong.h. In particular, an architecture that supports
9 * both 32 and 64 bit user space must not rely on CONFIG_64BIT
10 * to decide it, but rather check a compiler provided macro.
11 */
12#ifndef __BITS_PER_LONG
13#define __BITS_PER_LONG 32
14#endif
15
16#endif /* __ASM_GENERIC_BITS_PER_LONG */
17

source code of include/asm-generic/bitsperlong.h