These are not used outside of this sourcefile, so make them static. Fixes the following W=1 kernel build warning(s): drivers/usb/gadget/udc/lpc32xx_udc.c:1929:6: warning: no previous prototype for ‘udc_send_in_zlp’ [-Wmissing-prototypes] 1929 | void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) | ^~~~~~~~~~~~~~~ drivers/usb/gadget/udc/lpc32xx_udc.c:1943:6: warning: no previous prototype for ‘udc_handle_eps’ [-Wmissing-prototypes] 1943 | void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) | ^~~~~~~~~~~~~~ Cc: Felipe Balbi <balbi@xxxxxxxxxx> Cc: Vladimir Zapolskiy <vz@xxxxxxxxx> Cc: Sylvain Lemieux <slemieux.tyco@xxxxxxxxx> Cc: Kevin Wells <kevin.wells@xxxxxxx> Cc: Roland Stigge <stigge@xxxxxxxxx> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> --- drivers/usb/gadget/udc/lpc32xx_udc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c index 465d0b7c6522a..4a112670cc6c4 100644 --- a/drivers/usb/gadget/udc/lpc32xx_udc.c +++ b/drivers/usb/gadget/udc/lpc32xx_udc.c @@ -1926,7 +1926,7 @@ static const struct usb_ep_ops lpc32xx_ep_ops = { }; /* Send a ZLP on a non-0 IN EP */ -void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) +static void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) { /* Clear EP status */ udc_clearep_getsts(udc, ep->hwep_num); @@ -1940,7 +1940,7 @@ void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) * This function will only be called when a delayed ZLP needs to be sent out * after a DMA transfer has filled both buffers. */ -void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) +static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) { u32 epstatus; struct lpc32xx_request *req; -- 2.25.1