diff options
Diffstat (limited to 'include/linux/bitops.h')
| -rw-r--r-- | include/linux/bitops.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index be5fd38bd5a0..5d858e02997f 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h | |||
| @@ -18,8 +18,11 @@ | |||
| 18 | * position @h. For example | 18 | * position @h. For example |
| 19 | * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000. | 19 | * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000. |
| 20 | */ | 20 | */ |
| 21 | #define GENMASK(h, l) (((U32_C(1) << ((h) - (l) + 1)) - 1) << (l)) | 21 | #define GENMASK(h, l) \ |
| 22 | #define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l)) | 22 | (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) |
| 23 | |||
| 24 | #define GENMASK_ULL(h, l) \ | ||
| 25 | (((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) | ||
| 23 | 26 | ||
| 24 | extern unsigned int __sw_hweight8(unsigned int w); | 27 | extern unsigned int __sw_hweight8(unsigned int w); |
| 25 | extern unsigned int __sw_hweight16(unsigned int w); | 28 | extern unsigned int __sw_hweight16(unsigned int w); |
