usb: dwc3: ep0: Clean up unused variables

Many variables in ep0 are set but never used, so should be removed.

Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 75e6cb0..a4dceae 100644 (file)
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -487,14 +487,10 @@ static int dwc3_ep0_handle_device(struct dwc3 *dwc,
 static int dwc3_ep0_handle_intf(struct dwc3 *dwc,
                struct usb_ctrlrequest *ctrl, int set)
 {
-       enum usb_device_state   state;
        u32                     wValue;
-       u32                     wIndex;
        int                     ret = 0;
 
        wValue = le16_to_cpu(ctrl->wValue);
-       wIndex = le16_to_cpu(ctrl->wIndex);
-       state = dwc->gadget.state;
 
        switch (wValue) {
        case USB_INTRF_FUNC_SUSPEND:
@@ -517,14 +513,10 @@ static int dwc3_ep0_handle_endpoint(struct dwc3 *dwc,
                struct usb_ctrlrequest *ctrl, int set)
 {
        struct dwc3_ep          *dep;
-       enum usb_device_state   state;
        u32                     wValue;
-       u32                     wIndex;
        int                     ret;
 
        wValue = le16_to_cpu(ctrl->wValue);
-       wIndex = le16_to_cpu(ctrl->wIndex);
-       state = dwc->gadget.state;
 
        switch (wValue) {
        case USB_ENDPOINT_HALT:
@@ -551,10 +543,8 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
 {
        u32                     recip;
        int                     ret;
-       enum usb_device_state   state;
 
        recip = ctrl->bRequestType & USB_RECIP_MASK;
-       state = dwc->gadget.state;
 
        switch (recip) {
        case USB_RECIP_DEVICE:
@@ -712,12 +702,10 @@ static int dwc3_ep0_set_sel(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
        struct dwc3_ep  *dep;
        enum usb_device_state state = dwc->gadget.state;
        u16             wLength;
-       u16             wValue;
 
        if (state == USB_STATE_DEFAULT)
                return -EINVAL;
 
-       wValue = le16_to_cpu(ctrl->wValue);
        wLength = le16_to_cpu(ctrl->wLength);
 
        if (wLength != 6) {
@@ -842,9 +830,6 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
        struct usb_request      *ur;
        struct dwc3_trb         *trb;
        struct dwc3_ep          *ep0;
-       unsigned                maxp;
-       unsigned                remaining_ur_length;
-       void                    *buf;
        u32                     transferred = 0;
        u32                     status;
        u32                     length;
@@ -871,11 +856,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
        }
 
        ur = &r->request;
-       buf = ur->buf;
-       remaining_ur_length = ur->length;
 
        length = trb->size & DWC3_TRB_SIZE_MASK;
-       maxp = ep0->endpoint.maxpacket;
        transferred = ur->length - length;
        ur->actual += transferred;
 
@@ -1001,7 +983,6 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
        } else if (IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) &&
                   req->request.length && req->request.zero) {
                u32     maxpacket;
-               u32     rem;
 
                ret = usb_gadget_map_request_by_dev(dwc->sysdev,
                                &req->request, dep->number);
@@ -1009,7 +990,6 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
                        return;
 
                maxpacket = dep->endpoint.maxpacket;
-               rem = req->request.length % maxpacket;
 
                /* prepare normal TRB */
                dwc3_ep0_prepare_one_trb(dep, req->request.dma,