[PATCH] parisc: Export iosapic_serial_irq() symbol for serial port driver

[Helge Deller <deller@xxxxxx>]

The parisc serial port driver needs this symbol when it's compiled
as module.

Signed-off-by: Helge Deller <deller@xxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index bdef7a8d6ab8..bcc1dae00780 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -866,6 +866,7 @@ int iosapic_serial_irq(struct parisc_device *dev)

 	return vi->txn_irq;
 }
+EXPORT_SYMBOL(iosapic_serial_irq);
 #endif