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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_GENERIC_BITS_PER_LONG #define __ASM_GENERIC_BITS_PER_LONG #include <uapi/asm-generic/bitsperlong.h> #ifdef CONFIG_64BIT #define BITS_PER_LONG 64 #else #define BITS_PER_LONG 32 #endif /* CONFIG_64BIT */ /* * FIXME: The check currently breaks x86-64 build, so it's * temporarily disabled. Please fix x86-64 and reenable */ #if 0 && BITS_PER_LONG != __BITS_PER_LONG #error Inconsistent word size. Check asm/bitsperlong.h #endif #ifndef BITS_PER_LONG_LONG #define BITS_PER_LONG_LONG 64 #endif /* * small_const_nbits(n) is true precisely when it is known at compile-time * that BITMAP_SIZE(n) is 1, i.e. 1 <= n <= BITS_PER_LONG. This allows * various bit/bitmap APIs to provide a fast inline implementation. Bitmaps * of size 0 are very rare, and a compile-time-known-size 0 is most likely * a sign of error. They will be handled correctly by the bit/bitmap APIs, * but using the out-of-line functions, so that the inline implementations * can unconditionally dereference the pointer(s). */ #define small_const_nbits(nbits) \ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0) #endif /* __ASM_GENERIC_BITS_PER_LONG */