On Wed, 2013-06-12 at 14:53 +0200, Bart Van Assche wrote: > Changing the state of a SCSI device via sysfs into "cancel" or > "deleted" prevents removal of these devices by scsi_remove_host(). > Hence do not allow this. Also, introduce the symbolic name > INVALID_SDEV_STATE, representing a value different from any valid > SCSI device state. Update scsi_device_set_state() such that gcc > does not issue a warning about an enumeration value not being > handled inside a switch statement.
zero is the invalid state, that's why the SDEV_ states start at 1. Using a bare zero also means that gcc doesn't have to consider it in the switch statement, so there's no need to introduce a new one. If we want to try to babysit user initiated state changes, then it looks like OFFLINE<->RUNNING might be the only useful ones? James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
