diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index e3fb496c71630a643a1dea0b472fab3238fa755e..943cf0d6abaf8b959e2a879ca901fedaea693b1e 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -760,7 +760,7 @@ static irqreturn_t solos_irq(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-void solos_bh(unsigned long card_arg)
+static void solos_bh(unsigned long card_arg)
 {
 	struct solos_card *card = (void *)card_arg;
 	uint32_t card_flags;