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-rw-r--r--arch/s390/kernel/irq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 408e866ae54..dd3c1994b8b 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -312,6 +312,7 @@ void measurement_alert_subclass_unregister(void)
}
EXPORT_SYMBOL(measurement_alert_subclass_unregister);
+#ifdef CONFIG_SMP
void synchronize_irq(unsigned int irq)
{
/*
@@ -320,6 +321,7 @@ void synchronize_irq(unsigned int irq)
*/
}
EXPORT_SYMBOL_GPL(synchronize_irq);
+#endif
#ifndef CONFIG_PCI