1 files changed, 7 insertions, 11 deletions

diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index fb92524d24ef..fd5944bbe224 100644
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -251,13 +251,11 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg)
         int first = 1;
         int i;
         unsigned long duration;
-        struct timespec done_stamp = current_kernel_time(); /* xtime */
+        unsigned long done_stamp = jiffies;
 
         CTCM_PR_DEBUG("%s(%s): %s\n", __func__, ch->id, dev->name);
 
-        duration =
-            (done_stamp.tv_sec - ch->prof.send_stamp.tv_sec) * 1000000 +
-            (done_stamp.tv_nsec - ch->prof.send_stamp.tv_nsec) / 1000;
+        duration = done_stamp - ch->prof.send_stamp;
         if (duration > ch->prof.tx_time)
                 ch->prof.tx_time = duration;
 
@@ -307,7 +305,7 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg)
                 spin_unlock(&ch->collect_lock);
                 ch->ccw[1].count = ch->trans_skb->len;
                 fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch);
-                ch->prof.send_stamp = current_kernel_time(); /* xtime */
+                ch->prof.send_stamp = jiffies;
                 rc = ccw_device_start(ch->cdev, &ch->ccw[0],
                                                 (unsigned long)ch, 0xff, 0);
                 ch->prof.doios_multi++;
@@ -1229,14 +1227,12 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg)
         int             rc;
         struct th_header *header;
         struct pdu      *p_header;
-        struct timespec done_stamp = current_kernel_time(); /* xtime */
+        unsigned long done_stamp = jiffies;
 
         CTCM_PR_DEBUG("Enter %s: %s cp:%i\n",
                         __func__, dev->name, smp_processor_id());
 
-        duration =
-                (done_stamp.tv_sec - ch->prof.send_stamp.tv_sec) * 1000000 +
-                (done_stamp.tv_nsec - ch->prof.send_stamp.tv_nsec) / 1000;
+        duration = done_stamp - ch->prof.send_stamp;
         if (duration > ch->prof.tx_time)
                 ch->prof.tx_time = duration;
 
@@ -1361,7 +1357,7 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg)
 
         ch->ccw[1].count = ch->trans_skb->len;
         fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch);
-        ch->prof.send_stamp = current_kernel_time(); /* xtime */
+        ch->prof.send_stamp = jiffies;
         if (do_debug_ccw)
                 ctcmpc_dumpit((char *)&ch->ccw[0], sizeof(struct ccw1) * 3);
         rc = ccw_device_start(ch->cdev, &ch->ccw[0],
@@ -1827,7 +1823,7 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg)
         fsm_newstate(wch->fsm, CTC_STATE_TX);
 
         spin_lock_irqsave(get_ccwdev_lock(wch->cdev), saveflags);
-        wch->prof.send_stamp = current_kernel_time(); /* xtime */
+        wch->prof.send_stamp = jiffies;
         rc = ccw_device_start(wch->cdev, &wch->ccw[3],
                                         (unsigned long) wch, 0xff, 0);
         spin_unlock_irqrestore(get_ccwdev_lock(wch->cdev), saveflags);