[S390] ap: Setup processing for messages in request queue.

Setup timer for processing messages in request queue, if sending an AP
message returns with reason code AP_RESPONSE_RESET_IN_PROGRESS.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index b77ae51..ec94f04 100644 (file)
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1271,18 +1271,16 @@ ap_config_timeout(unsigned long ptr)
 }
 
 /**
- * ap_schedule_poll_timer(): Schedule poll timer.
+ * __ap_schedule_poll_timer(): Schedule poll timer.
  *
  * Set up the timer to run the poll tasklet
  */
-static inline void ap_schedule_poll_timer(void)
+static inline void __ap_schedule_poll_timer(void)
 {
        ktime_t hr_time;
 
        spin_lock_bh(&ap_poll_timer_lock);
-       if (ap_using_interrupts() || ap_suspend_flag)
-               goto out;
-       if (hrtimer_is_queued(&ap_poll_timer))
+       if (hrtimer_is_queued(&ap_poll_timer) || ap_suspend_flag)
                goto out;
        if (ktime_to_ns(hrtimer_expires_remaining(&ap_poll_timer)) <= 0) {
                hr_time = ktime_set(0, poll_timeout);
@@ -1294,6 +1292,18 @@ out:
 }
 
 /**
+ * ap_schedule_poll_timer(): Schedule poll timer.
+ *
+ * Set up the timer to run the poll tasklet
+ */
+static inline void ap_schedule_poll_timer(void)
+{
+       if (ap_using_interrupts())
+               return;
+       __ap_schedule_poll_timer();
+}
+
+/**
  * ap_poll_read(): Receive pending reply messages from an AP device.
  * @ap_dev: pointer to the AP device
  * @flags: pointer to control flags, bit 2^0 is set if another poll is
@@ -1374,8 +1384,9 @@ static int ap_poll_write(struct ap_device *ap_dev, unsigned long *flags)
                        *flags |= 1;
                *flags |= 2;
                break;
-       case AP_RESPONSE_Q_FULL:
        case AP_RESPONSE_RESET_IN_PROGRESS:
+               __ap_schedule_poll_timer();
+       case AP_RESPONSE_Q_FULL:
                *flags |= 2;
                break;
        case AP_RESPONSE_MESSAGE_TOO_BIG: