diff options
| author | Mark Brown <broonie@kernel.org> | 2020-10-28 21:37:38 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-10-28 21:37:38 +0000 |
| commit | f59cddd8517ab880fb09bf1465b07b337e058b22 (patch) | |
| tree | b8ac2b4bd99f6b4860dd403bb39b2b7149ed06e0 /include/linux/bitops.h | |
| parent | 43c3e148830aae5469c411a2bf951d4fe7fcea29 (diff) | |
| parent | 3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff) | |
Merge tag 'v5.10-rc1' into regulator-5.10
Linux 5.10-rc1
Diffstat (limited to 'include/linux/bitops.h')
| -rw-r--r-- | include/linux/bitops.h | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 99f2ac30b1d9..5b74bdf159d6 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -188,12 +188,10 @@ static inline unsigned fls_long(unsigned long l) static inline int get_count_order(unsigned int count) { - int order; + if (count == 0) + return -1; - order = fls(count) - 1; - if (count & (count - 1)) - order++; - return order; + return fls(--count); } /** @@ -206,10 +204,7 @@ static inline int get_count_order_long(unsigned long l) { if (l == 0UL) return -1; - else if (l & (l - 1UL)) - return (int)fls_long(l); - else - return (int)fls_long(l) - 1; + return (int)fls_long(--l); } /** |