Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"

This reverts commit 8ce14b99f678fa650041a776e96e5534133e78c5.

Turns out that commit is wrong. Host controllers are allowed to use
Clear Feature HALT as means to sync data toggle between host and
periperal.

Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9faad896b3a135e86a6d4aebae3678fbc20994d7..9f92ee03dde7048deaca902430ae60c06018c098 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1470,9 +1470,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
                unsigned transfer_in_flight;
                unsigned started;
 
-               if (dep->flags & DWC3_EP_STALL)
-                       return 0;
-
                if (dep->number > 1)
                        trb = dwc3_ep_prev_trb(dep, dep->trb_enqueue);
                else
@@ -1494,8 +1491,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
                else
                        dep->flags |= DWC3_EP_STALL;
        } else {
-               if (!(dep->flags & DWC3_EP_STALL))
-                       return 0;
 
                ret = dwc3_send_clear_stall_ep_cmd(dep);
                if (ret)