Messages in this thread Patch in this message | | | From | Chin-Chun Chen <> | Subject | [PATCH] include/linux/bitops.h: Fix function fns | Date | Sat, 13 Apr 2024 14:12:04 +0800 |
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Modified the function fns to resolve a calculation error by: 1. Reducing n first. 2. Adding 1 at the end to get the correct index.
This commit improves the accuracy and reliability of the code.
Signed-off-by: Chin-Chun Chen <chinchunchen2001@gmail.com> --- include/linux/bitops.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 2ba557e067fe..2457610f74eb 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -258,8 +258,8 @@ static inline unsigned long fns(unsigned long word, unsigned int n) while (word) { bit = __ffs(word); - if (n-- == 0) - return bit; + if (--n == 0) + return bit + 1; __clear_bit(bit, &word); } base-commit: 8f2c057754b25075aa3da132cd4fd4478cdab854 -- 2.40.1
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