diff --git a/stand/powerpc/kboot/main.c b/stand/powerpc/kboot/main.c
index 25eaf5064489..21721afcfab2 100644
--- a/stand/powerpc/kboot/main.c
+++ b/stand/powerpc/kboot/main.c
@@ -31,7 +31,6 @@ __FBSDID("$FreeBSD$");
 #include <sys/param.h>
 #include <fdt_platform.h>
 
-#define _KERNEL
 #include <machine/cpufunc.h>
 #include "bootstrap.h"
 #include "host_syscall.h"
diff --git a/sys/conf/files.powerpc b/sys/conf/files.powerpc
index 013fe0fea33b..a5d3ec7153d9 100644
--- a/sys/conf/files.powerpc
+++ b/sys/conf/files.powerpc
@@ -88,8 +88,6 @@ libkern/divdi3.c		optional	powerpc | powerpcspe
 libkern/ffs.c			standard
 libkern/ffsl.c			standard
 libkern/ffsll.c			standard
-libkern/fls.c			standard
-libkern/flsl.c			standard
 libkern/flsll.c			standard
 libkern/lshrdi3.c		optional	powerpc | powerpcspe
 libkern/memcmp.c		standard
diff --git a/sys/powerpc/include/cpufunc.h b/sys/powerpc/include/cpufunc.h
index bad2042bbb19..162a591d863b 100644
--- a/sys/powerpc/include/cpufunc.h
+++ b/sys/powerpc/include/cpufunc.h
@@ -212,6 +212,20 @@ get_pcpu(void)
 	return (ret);
 }
 
+#define	HAVE_INLINE_FLS
+static __inline __pure2 int
+fls(int mask)
+{
+	return (mask ? 32 - __builtin_clz(mask) : 0);
+}
+
+#define HAVE_INLINE_FLSL
+static __inline __pure2 int
+flsl(long mask)
+{
+	return (mask ? (8 * sizeof(long) - __builtin_clzl(mask)) : 0);
+}
+
 /* "NOP" operations to signify priorities to the kernel. */
 static __inline void
 nop_prio_vlow(void)