diff options
| author | Harald Freudenberger <freude@linux.ibm.com> | 2021-11-11 14:31:46 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2022-03-08 00:33:00 +0100 |
| commit | d64e5e9120a6afc8ebb9e9b46c1302f13b16b68d (patch) | |
| tree | c008a53c36943c1f3b55b35ede39c40510423d6b /drivers/s390/crypto/ap_queue.c | |
| parent | s390/mm: convert pte_val()/pXd_val() into functions (diff) | |
| download | linux-d64e5e9120a6afc8ebb9e9b46c1302f13b16b68d.tar.xz linux-d64e5e9120a6afc8ebb9e9b46c1302f13b16b68d.zip | |
s390/ap/zcrypt: debug feature improvements
This patch adds some debug feature improvements related
to some failures happened in the past. With CEX8 the max
request and response sizes have been extended but the
user space applications did not rework their code and
thus ran into receive buffer issues. This ffdc patch
here helps with additional checks and debug feature
messages in debugging and pointing to the root cause of
some failures related to wrong buffer sizes.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Jürgen Christ <jchrist@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/ap_queue.c')
| -rw-r--r-- | drivers/s390/crypto/ap_queue.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c index 1901449768dd..921a82a41e66 100644 --- a/drivers/s390/crypto/ap_queue.c +++ b/drivers/s390/crypto/ap_queue.c @@ -455,7 +455,7 @@ 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->dev_state > AP_DEV_STATE_UNINITIATED) return ap_jumptable[aq->sm_state][event](aq); else return AP_SM_WAIT_NONE; @@ -915,6 +915,7 @@ 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); } |