[dpdk-dev] [PATCH] timer: fix incorrect pending-list manipulation

[Hiroyuki Mikita <h.mikita89@gmail.com>]

This commit fixes incorrect pending-list manipulation
when getting list of expired timers in rte_timer_manage().

When timer_get_prev_entries() sets pending_head on prev,
the pending-list is broken.
The next of pending_head always becomes NULL.
In this depth level, it is not need to manipulate the list.

Signed-off-by: Hiroyuki Mikita <h.mikita89@gmail.com>
---
 lib/librte_timer/rte_timer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/librte_timer/rte_timer.c b/lib/librte_timer/rte_timer.c
index 3dcdab5..7457d32 100644
--- a/lib/librte_timer/rte_timer.c
+++ b/lib/librte_timer/rte_timer.c
@@ -543,6 +543,8 @@ void rte_timer_manage(void)
 	/* break the existing list at current time point */
 	timer_get_prev_entries(cur_time, lcore_id, prev);
 	for (i = priv_timer[lcore_id].curr_skiplist_depth -1; i >= 0; i--) {
+		if (prev[i] == &priv_timer[lcore_id].pending_head)
+			continue;
 		priv_timer[lcore_id].pending_head.sl_next[i] =
 		    prev[i]->sl_next[i];
 		if (prev[i]->sl_next[i] == NULL)
-- 
2.7.4