sd_pm_state_change
(void) sd_pm_state_change(un, SD_PM_STATE_ACTIVE(un),
if ((rval = sd_pm_state_change(un, level, SD_PM_STATE_CHANGE))
(void) sd_pm_state_change(un, last_power_level,
(void) sd_pm_state_change(un, level,
static int sd_pm_state_change(struct sd_lun *un, int level, int flag);