diff options
Diffstat (limited to 'drivers/s390/crypto/ap_queue.c')
| -rw-r--r-- | drivers/s390/crypto/ap_queue.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c index 1901449768dd..205045cd998d 100644 --- a/drivers/s390/crypto/ap_queue.c +++ b/drivers/s390/crypto/ap_queue.c @@ -455,7 +455,8 @@ static ap_func_t *ap_jumptable[NR_AP_SM_STATES][NR_AP_SM_EVENTS] = { enum ap_sm_wait ap_sm_event(struct ap_queue *aq, enum ap_sm_event event) { - if (aq->dev_state > AP_DEV_STATE_UNINITIATED) + if (aq->config && !aq->chkstop && + aq->dev_state > AP_DEV_STATE_UNINITIATED) return ap_jumptable[aq->sm_state][event](aq); else return AP_SM_WAIT_NONE; @@ -615,6 +616,20 @@ static ssize_t config_show(struct device *dev, static DEVICE_ATTR_RO(config); +static ssize_t chkstop_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ap_queue *aq = to_ap_queue(dev); + int rc; + + spin_lock_bh(&aq->lock); + rc = scnprintf(buf, PAGE_SIZE, "%d\n", aq->chkstop ? 1 : 0); + spin_unlock_bh(&aq->lock); + return rc; +} + +static DEVICE_ATTR_RO(chkstop); + #ifdef CONFIG_ZCRYPT_DEBUG static ssize_t states_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -729,6 +744,7 @@ static struct attribute *ap_queue_dev_attrs[] = { &dev_attr_reset.attr, &dev_attr_interrupt.attr, &dev_attr_config.attr, + &dev_attr_chkstop.attr, #ifdef CONFIG_ZCRYPT_DEBUG &dev_attr_states.attr, &dev_attr_last_err_rc.attr, @@ -915,6 +931,7 @@ void ap_queue_init_state(struct ap_queue *aq) spin_lock_bh(&aq->lock); aq->dev_state = AP_DEV_STATE_OPERATING; aq->sm_state = AP_SM_STATE_RESET_START; + aq->last_err_rc = 0; ap_wait(ap_sm_event(aq, AP_SM_EVENT_POLL)); spin_unlock_bh(&aq->lock); } |