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Commit 202adafe authored by Felipe Balbi's avatar Felipe Balbi
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usb: dwc3: gadget: don't WARN about lack of TRBs 



We don't need a big fat warning with stack dump at all. Running out of
TRBs is a normal condition and we will have more TRBs available as
soon as some transfers complete.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 225785ae

drivers/usb/dwc3/gadget.c

+1 −3
Original line number Diff line number Diff line
@@ -953,7 +953,6 @@ static struct dwc3_trb *dwc3_ep_prev_trb(struct dwc3_ep *dep, u8 index) 
static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep)

{

	struct dwc3_trb		*tmp;

	struct dwc3		*dwc = dep->dwc;

	u8			trbs_left;



	/*
@@ -965,8 +964,7 @@ static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep) 
	 */

	if (dep->trb_enqueue == dep->trb_dequeue) {

		tmp = dwc3_ep_prev_trb(dep, dep->trb_enqueue);

		if (dev_WARN_ONCE(dwc->dev, tmp->ctrl & DWC3_TRB_CTRL_HWO,

				  "%s No TRBS left\n", dep->name))

		if (tmp->ctrl & DWC3_TRB_CTRL_HWO)

			return 0;



		return DWC3_TRB_NUM - 1;