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-rw-r--r--include/linux/gcd.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/gcd.h b/include/linux/gcd.h
index 69f5e8a01bad..616e81a7f7e3 100644
--- a/include/linux/gcd.h
+++ b/include/linux/gcd.h
@@ -1,7 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _GCD_H
#define _GCD_H
#include <linux/compiler.h>
+#include <linux/jump_label.h>
+
+DECLARE_STATIC_KEY_TRUE(efficient_ffs_key);
unsigned long gcd(unsigned long a, unsigned long b) __attribute_const__;