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Commit 2beda8b2 authored by Udipto Goswami's avatar Udipto Goswami
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usb: dwc3: Remove boundary check while traversing the TRB ring buffer 



Commit 694dfaa2 ("usb: dwc3: Add boundary check while traversing
the TRB ring buffer") adds a boundary check while traserving the ring
buffer for not iterating past the TRB. Removing this patch as already
upstream patch is there for this.

Change-Id: I1522226cadbd956bf8a9658554b94b4f3f407739
Signed-off-by: default avatarUdipto Goswami <ugoswami@codeaurora.org>
parent 74809ce2

drivers/usb/dwc3/gadget.c

+3 −4
Original line number Diff line number Diff line
@@ -1650,7 +1650,6 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request, 
static void dwc3_gadget_ep_skip_trbs(struct dwc3_ep *dep, struct dwc3_request *req)

{

	int i;

	struct dwc3_trb *trb = req->trb;



	/*

	 * If request was already started, this means we had to
@@ -1663,11 +1662,11 @@ static void dwc3_gadget_ep_skip_trbs(struct dwc3_ep *dep, struct dwc3_request *r 
	 * pointer.

	 */

	for (i = 0; i < req->num_trbs; i++) {

		struct dwc3_trb *trb;



		trb = req->trb + i;

		trb->ctrl &= ~DWC3_TRB_CTRL_HWO;

		dwc3_ep_inc_deq(dep);

		trb++;

		if (trb->ctrl & DWC3_TRBCTL_LINK_TRB)

			trb = dep->trb_pool;

	}



	req->num_trbs = 0;