> From: Greg Kroah-Hartman > CONFIG_USB_DEBUG is going away, so remove the few places in the USB core > that relied on them. > > This means that we always now do the "debug" checks for every urb > submitted, which is a good idea, as who knows how many driver bugs we > have been ignoring when people forget to enable this option. Also, with > the overall speed of USB, doing these extra checks should not cause any > additional overhead. Well USB3 isn't that slow, and the new version coming along soon is even faster. Running gigabit ethernet on usb3 shows a significantly higher cpu cost than when using a normal ethernet adapter - and really the actual operations required are very similar. ... > /* Check that the pipe's type matches the endpoint's type */ > if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) It looks as though it ought to be possible to make that check: if (unlikely(xfertype != urb->pipe->valid_xfertype)) 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
