diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 8016c71315..57bdfb4e78 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -592,12 +592,6 @@ static const TypeInfo via_isa_info = {
     },
 };
 
-void via_isa_set_irq(PCIDevice *d, int n, int level)
-{
-    ViaISAState *s = VIA_ISA(d);
-    qemu_set_irq(s->isa_irqs_in[n], level);
-}
-
 static void via_isa_request_i8259_irq(void *opaque, int irq, int level)
 {
     ViaISAState *s = opaque;
diff --git a/include/hw/isa/vt82c686.h b/include/hw/isa/vt82c686.h
index da1722daf2..b6e95b2851 100644
--- a/include/hw/isa/vt82c686.h
+++ b/include/hw/isa/vt82c686.h
@@ -34,6 +34,4 @@ struct ViaAC97State {
     uint32_t ac97_cmd;
 };
 
-void via_isa_set_irq(PCIDevice *d, int n, int level);
-
 #endif