From d17b78aa142d7c63490c7a2c3f202ef99fffad70 Mon Sep 17 00:00:00 2001
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Wed, 9 Feb 2022 11:43:33 +0000
Subject: [PATCH] LinuxKPI: add __ffs64()

Add __ffs64() to linux/bitops.h needed by a driver.

Reviewed by:	hselasky
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D34225
---
 sys/compat/linuxkpi/common/include/linux/bitops.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/bitops.h b/sys/compat/linuxkpi/common/include/linux/bitops.h
index 262e6b9b110..b6c54b2e685 100644
--- a/sys/compat/linuxkpi/common/include/linux/bitops.h
+++ b/sys/compat/linuxkpi/common/include/linux/bitops.h
@@ -86,6 +86,12 @@ __ffsl(long mask)
 	return (ffsl(mask) - 1);
 }
 
+static inline unsigned long
+__ffs64(uint64_t mask)
+{
+	return (ffsll(mask) - 1);
+}
+
 static inline int
 __flsl(long mask)
 {