1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 84f4cbf652e5..3fc96db2a4b6 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -416,7 +416,8 @@ static void (*smp_cross_call)(const struct cpumask *, unsigned int);
 
 void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
 {
-        smp_cross_call = fn;
+        if (!smp_cross_call)
+                smp_cross_call = fn;
 }
 
 void arch_send_call_function_ipi_mask(const struct cpumask *mask)