diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index 16dd1ed44bb52..3606be897cb24 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -121,9 +121,6 @@ struct cppi {
 	struct list_head		tx_complete;
 };
 
-/* CPPI IRQ handler */
-extern irqreturn_t cppi_interrupt(int, void *);
-
 struct cppi41_dma_channel {
 	struct dma_channel channel;
 	struct cppi41_dma_controller *controller;
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index e2445ca3356d0..0cd7fc468de85 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -198,10 +198,6 @@ extern struct dma_controller *
 tusb_dma_controller_create(struct musb *musb, void __iomem *base);
 extern void tusb_dma_controller_destroy(struct dma_controller *c);
 
-extern struct dma_controller *
-cppi_dma_controller_create(struct musb *musb, void __iomem *base);
-extern void cppi_dma_controller_destroy(struct dma_controller *c);
-
 extern struct dma_controller *
 cppi41_dma_controller_create(struct musb *musb, void __iomem *base);
 extern void cppi41_dma_controller_destroy(struct dma_controller *c);