From: Felipe Balbi > Sent: 06 April 2016 14:25 > If we _know_ length is 0, we can just return 1 early. Does that happen often enough to be an optimisation? Looks like a mispredicted branch to me. David -- 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