diff --git a/lib/cpumask.c b/lib/cpumask.c
index 5a70f6196f577a071ae0a31e9da7fa0e1dd1bc68..81dedaab36ccfed3150281a0f915a4070f667bfd 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -41,6 +41,7 @@ int cpumask_any_but(const struct cpumask *mask, unsigned int cpu)
 			break;
 	return i;
 }
+EXPORT_SYMBOL(cpumask_any_but);
 
 /* These are not inline because of header tangles. */
 #ifdef CONFIG_CPUMASK_OFFSTACK