usb: udc: lpc32xx: remove set but not used 3 variables

Fixes gcc '-Wunused-but-set-variable' warning:
drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_protocol_cmd_r’:
drivers/usb/gadget/udc/lpc32xx_udc.c:744:6: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable]

drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_handle_dma_ep’:
drivers/usb/gadget/udc/lpc32xx_udc.c:1994:14: warning: variable ‘epstatus’ set but not used [-Wunused-but-set-variable]

drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_handle_ep0_setup’:
drivers/usb/gadget/udc/lpc32xx_udc.c:2200:22: warning: variable ‘wLength’ set but not used [-Wunused-but-set-variable]

It is not used since commit 90fccb529d24 ("usb: gadget: Gadget directory cleanup - group UDC drivers")

Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 5f1b14f..2c8084d 100644 (file)
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -742,7 +742,6 @@ static inline void udc_protocol_cmd_data_w(struct lpc32xx_udc *udc, u32 cmd,
  * response data */
 static u32 udc_protocol_cmd_r(struct lpc32xx_udc *udc, u32 cmd)
 {
-       u32 tmp;
        int to = 1000;
 
        /* Write a command and read data from the protocol engine */
@@ -752,7 +751,6 @@ static u32 udc_protocol_cmd_r(struct lpc32xx_udc *udc, u32 cmd)
        /* Write command code */
        udc_protocol_cmd_w(udc, cmd);
 
-       tmp = readl(USBD_DEVINTST(udc->udp_baseaddr));
        while ((!(readl(USBD_DEVINTST(udc->udp_baseaddr)) & USBD_CDFULL))
               && (to > 0))
                to--;
@@ -1992,7 +1990,7 @@ void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
 /* DMA end of transfer completion */
 static void udc_handle_dma_ep(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
 {
-       u32 status, epstatus;
+       u32 status;
        struct lpc32xx_request *req;
        struct lpc32xx_usbd_dd_gad *dd;
 
@@ -2086,7 +2084,7 @@ static void udc_handle_dma_ep(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
                if (udc_clearep_getsts(udc, ep->hwep_num) & EP_SEL_F) {
                        udc_clearep_getsts(udc, ep->hwep_num);
                        uda_enable_hwepint(udc, ep->hwep_num);
-                       epstatus = udc_clearep_getsts(udc, ep->hwep_num);
+                       udc_clearep_getsts(udc, ep->hwep_num);
 
                        /* Let the EP interrupt handle the ZLP */
                        return;
@@ -2198,7 +2196,7 @@ static void udc_handle_ep0_setup(struct lpc32xx_udc *udc)
        struct lpc32xx_ep *ep, *ep0 = &udc->ep[0];
        struct usb_ctrlrequest ctrlpkt;
        int i, bytes;
-       u16 wIndex, wValue, wLength, reqtype, req, tmp;
+       u16 wIndex, wValue, reqtype, req, tmp;
 
        /* Nuke previous transfers */
        nuke(ep0, -EPROTO);
@@ -2214,7 +2212,6 @@ static void udc_handle_ep0_setup(struct lpc32xx_udc *udc)
        /* Native endianness */
        wIndex = le16_to_cpu(ctrlpkt.wIndex);
        wValue = le16_to_cpu(ctrlpkt.wValue);
-       wLength = le16_to_cpu(ctrlpkt.wLength);
        reqtype = le16_to_cpu(ctrlpkt.bRequestType);
 
        /* Set direction of EP0 */