diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index fad94b0decc1..ed3a6d7e9de7 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -672,6 +672,7 @@ u8 setup_APIC_eilvt_ibs(u8 vector, u8 msg_type, u8 mask)
 	setup_APIC_eilvt(APIC_EILVT_LVTOFF_IBS, vector, msg_type, mask);
 	return APIC_EILVT_LVTOFF_IBS;
 }
+EXPORT_SYMBOL(setup_APIC_eilvt_ibs);
 
 /*
  * Local APIC start and shutdown
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 42bf69f8bc8e..45ec90e37b93 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -232,6 +232,7 @@ u8 setup_APIC_eilvt_ibs(u8 vector, u8 msg_type, u8 mask)
 	setup_APIC_eilvt(APIC_EILVT_LVTOFF_IBS, vector, msg_type, mask);
 	return APIC_EILVT_LVTOFF_IBS;
 }
+EXPORT_SYMBOL(setup_APIC_eilvt_ibs);
 
 /*
  * Program the next event, relative to now