git: d0199f27c06c - stable/13 - libc binuptime(): use the right function to get the most significant bit index

From: Konstantin Belousov <kib_at_FreeBSD.org>
Date: Tue, 15 Feb 2022 00:37:20 UTC
The branch stable/13 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=d0199f27c06caac4ccfedc61e8b2d13b658ea589

commit d0199f27c06caac4ccfedc61e8b2d13b658ea589
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2022-02-08 19:13:40 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2022-02-15 00:36:51 +0000

    libc binuptime(): use the right function to get the most significant bit index
    
    PR:     261781
    
    (cherry picked from commit a1f9326607dea5ab6979935e3ca2d7402dcc7cc1)
---
 lib/libc/sys/__vdso_gettimeofday.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/libc/sys/__vdso_gettimeofday.c b/lib/libc/sys/__vdso_gettimeofday.c
index c1457a54d37e..cf1400cdf291 100644
--- a/lib/libc/sys/__vdso_gettimeofday.c
+++ b/lib/libc/sys/__vdso_gettimeofday.c
@@ -83,9 +83,9 @@ binuptime(struct bintime *bt, struct vdso_timekeep *tk, bool abs)
 			return (error);
 		scale = th->th_scale;
 #ifdef _LP64
-		scale_bits = ffsl(scale);
+		scale_bits = flsl(scale);
 #else
-		scale_bits = ffsll(scale);
+		scale_bits = flsll(scale);
 #endif
 		if (__predict_false(scale_bits + fls(delta) > 63)) {
 			x = (scale >> 32) * delta;