Hi Felipe, 2018-06-27 14:30 GMT+02:00 Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>: > > looks like we need to do away with the wait_event_lock_irq() > call. usb_ep_dequeue() can be called from within the controller's > interrupt handler, so we can't rely on wait_event_lock_irq(). I guess > the best thing here would be to mark TRBs as dirty (and not increment > dequeue pointer), so they aren't reused by accident, then let endpoint > continue processing. Once command completion interrupt fires, we > increment dequeue pointer. > > This should work better, I suppose. Do you want a shot at implementing > this? I wrote a patch to implement this last week, and sent it to linux-arm-msm. Feel free to review it and tell me if this complies with what you suggested to me. Regards, Pierre Le Magourou -- 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
