From a9eb63705e379f10a3c9d13fc6aee8b50805e862 Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Thu, 15 Oct 2020 20:11:41 -0700 Subject: [PATCH] bitops: simplify get_count_order_long() These two cases could be unified into one. Signed-off-by: Wei Yang Signed-off-by: Andrew Morton Cc: Christian Brauner Cc: Andy Shevchenko Link: https://lkml.kernel.org/r/20200807085837.11697-2-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds --- include/linux/bitops.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 99f2ac30b1d9..030a98f0c452 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -206,10 +206,7 @@ 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); } /** -- 2.20.1