diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bitops.h | 7 | ||||
| -rw-r--r-- | include/linux/kernel.h | 5 |
2 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 208650b1ad3a..f17525a963d1 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -175,4 +175,11 @@ static inline __u32 ror32(__u32 word, unsigned int shift) return (word >> shift) | (word << (32 - shift)); } +static inline unsigned fls_long(unsigned long l) +{ + if (sizeof(l) == 4) + return fls(l); + return fls64(l); +} + #endif diff --git a/include/linux/kernel.h b/include/linux/kernel.h index bb6e7ddee2fd..03d6cfaa5b8a 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -154,9 +154,10 @@ static inline int __attribute_pure__ long_log2(unsigned long x) return r; } -static inline unsigned long __attribute_const__ roundup_pow_of_two(unsigned long x) +static inline unsigned long +__attribute_const__ roundup_pow_of_two(unsigned long x) { - return (1UL << fls(x - 1)); + return 1UL << fls_long(x - 1); } extern int printk_ratelimit(void); |