usb: dwc3: ep0: drop dead code
There's no such thing as XferNotReady(SETUP), we
can safely drop all that code with no problems
whatsoever.
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 151eca8..c611d80 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -457,7 +457,6 @@
enum dwc3_ep0_next {
DWC3_EP0_UNKNOWN = 0,
DWC3_EP0_COMPLETE,
- DWC3_EP0_NRDY_SETUP,
DWC3_EP0_NRDY_DATA,
DWC3_EP0_NRDY_STATUS,
};
@@ -779,7 +778,6 @@
#define DEPEVT_STREAMEVT_NOTFOUND 2
/* Control-only Status */
-#define DEPEVT_STATUS_CONTROL_SETUP 0
#define DEPEVT_STATUS_CONTROL_DATA 1
#define DEPEVT_STATUS_CONTROL_STATUS 2
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 28bce9b..d4b38c7 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -809,12 +809,6 @@
}
}
-static void dwc3_ep0_do_control_setup(struct dwc3 *dwc,
- const struct dwc3_event_depevt *event)
-{
- dwc3_ep0_out_start(dwc);
-}
-
static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
struct dwc3_ep *dep, struct dwc3_request *req)
{
@@ -926,50 +920,7 @@
{
dwc->setup_packet_pending = true;
- /*
- * This part is very tricky: If we have just handled
- * XferNotReady(Setup) and we're now expecting a
- * XferComplete but, instead, we receive another
- * XferNotReady(Setup), we should STALL and restart
- * the state machine.
- *
- * In all other cases, we just continue waiting
- * for the XferComplete event.
- *
- * We are a little bit unsafe here because we're
- * not trying to ensure that last event was, indeed,
- * XferNotReady(Setup).
- *
- * Still, we don't expect any condition where that
- * should happen and, even if it does, it would be
- * another error condition.
- */
- if (dwc->ep0_next_event == DWC3_EP0_COMPLETE) {
- switch (event->status) {
- case DEPEVT_STATUS_CONTROL_SETUP:
- dev_vdbg(dwc->dev, "Unexpected XferNotReady(Setup)\n");
- dwc3_ep0_stall_and_restart(dwc);
- break;
- case DEPEVT_STATUS_CONTROL_DATA:
- /* FALLTHROUGH */
- case DEPEVT_STATUS_CONTROL_STATUS:
- /* FALLTHROUGH */
- default:
- dev_vdbg(dwc->dev, "waiting for XferComplete\n");
- }
-
- return;
- }
-
switch (event->status) {
- case DEPEVT_STATUS_CONTROL_SETUP:
- dev_vdbg(dwc->dev, "Control Setup\n");
-
- dwc->ep0state = EP0_SETUP_PHASE;
-
- dwc3_ep0_do_control_setup(dwc, event);
- break;
-
case DEPEVT_STATUS_CONTROL_DATA:
dev_vdbg(dwc->dev, "Control Data\n");