Ming Lei wrote: > I am not sure if the same irq handler can run concurrently on different CPUs. > Even though it is, ehci/uhci handler have done such protection, so it > is not necessary to add such protection in the complete handler of usb > interface driver. What protection is done by ehci ? Is more information on this available anywhere ? Sujith -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html