diff options
Diffstat (limited to 'lib/bitops.h')
| -rw-r--r-- | lib/bitops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/bitops.h b/lib/bitops.h index af648c26..39ade388 100644 --- a/lib/bitops.h +++ b/lib/bitops.h @@ -29,4 +29,6 @@ static inline u32 u32_hash(u32 v) { return v * 2902958171u; } static inline u8 u32_popcount(u32 v) { return __builtin_popcount(v); } +static inline int uint_is_pow2(uint n) { return n && !(n & (n-1)); } + #endif |