On Wed, Jun 13, 2012 at 2:14 AM, Oliver Neukum <oliver@xxxxxxxxxx> wrote: > Am Dienstag, 12. Juni 2012, 03:19:42 schrieb Ming Lei: >> EVENT_DEV_OPEN is introduced to mark if the interface is opened or >> not, but we already have IFF_UP to handle it, so just >> remove the flag and use IFF_UP. > > When is IFF_UP cleared? The flag is tested in usbnet_resume(), The flag is cleared just after usbnet_stop completes. > so it must be cleared before usbnet_stop() is called. Yes, I see, otherwise system or runtime resume may happen at the same time with usbnet_stop. Thanking you for point it out. Thanks, -- Ming Lei -- 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