Hello. On 06/01/2012 04:30 PM, Pratyush Anand wrote:
If event status says that its last completed TRB but TRB is still owned by HW then break from the loop, because we are not going to get correct TRB status from trb control/size register.
Signed-off-by: Pratyush Anand<pratyush.anand@xxxxxx> --- drivers/usb/dwc3/gadget.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 00a60bc..42622cd 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1680,6 +1680,9 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, if (s_pkt) break; if ((event->status& DEPEVT_STATUS_LST) && + (trb->ctrl & DWC3_TRB_CTRL_HWO)) + break; + if ((event->status& DEPEVT_STATUS_LST) && (trb->ctrl &DWC3_TRB_CTRL_LST))
Isn't it better to check the first condition only once: if ((event->status & DEPEVT_STATUS_LST) && ((trb->ctrl & DWC3_TRB_CTRL_HWO) || (trb->ctrl & DWC3_TRB_CTRL_LST)) > + break; WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
