diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 1fa4f705b0b4..d3dd227a2bfc 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -494,7 +494,7 @@ static struct usb_descriptor_header *fsg_hs_function[] = {
 };
 
 /* Maxpacket and other transfer characteristics vary by speed. */
-static struct usb_endpoint_descriptor *
+static __maybe_unused struct usb_endpoint_descriptor *
 fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
 		struct usb_endpoint_descriptor *hs)
 {