diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/bitops.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index fa85486..8e89783 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -15,9 +15,34 @@ #ifndef __ASM_ARM_BITOPS_H #define __ASM_ARM_BITOPS_H +#if __LINUX_ARM_ARCH__ < 5 + #include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls.h> + +#else + +#define PLATFORM_FFS +#define PLATFORM_FLS + +#if !IS_ENABLED(CONFIG_HAS_THUMB2) && CONFIG_IS_ENABLED(SYS_THUMB_BUILD) + +unsigned long __fls(unsigned long word); +unsigned long __ffs(unsigned long word); +int fls(unsigned int x); +int ffs(int x); + +#else + +#include <asm-generic/bitops/builtin-__fls.h> +#include <asm-generic/bitops/builtin-__ffs.h> +#include <asm-generic/bitops/builtin-fls.h> +#include <asm-generic/bitops/builtin-ffs.h> + +#endif +#endif + #include <asm-generic/bitops/fls64.h> #ifdef __KERNEL__ @@ -113,7 +138,7 @@ static inline int test_bit(int nr, const void * addr) static inline int __ilog2(unsigned int x) { - return generic_fls(x) - 1; + return fls(x) - 1; } #define ffz(x) __ffs(~(x)) |