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* [dpdk-dev] [PATCH] net/ice: fix unsafe tailq element removal
@ 2019-07-19  5:28 Beilei Xing
  2019-07-22  2:21 ` Zhang, Qi Z
  0 siblings, 1 reply; 2+ messages in thread
From: Beilei Xing @ 2019-07-19  5:28 UTC (permalink / raw)
  To: qi.z.zhang; +Cc: dev

TAILQ_FOREACH macro is not safe to remove elements
during iterating tailq lists. Replace it with
TAILQ_FOREACH_SAFE.

Fixes: d76116a4678f ("net/ice: add generic flow API")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
---
 drivers/net/ice/ice_generic_flow.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/ice_generic_flow.c b/drivers/net/ice/ice_generic_flow.c
index c2931a1c4..05c84afaf 100644
--- a/drivers/net/ice/ice_generic_flow.c
+++ b/drivers/net/ice/ice_generic_flow.c
@@ -13,6 +13,7 @@
 #include <rte_ether.h>
 #include <rte_ethdev_driver.h>
 #include <rte_malloc.h>
+#include <rte_tailq.h>
 
 #include "ice_ethdev.h"
 #include "ice_generic_flow.h"
@@ -655,9 +656,10 @@ ice_flow_flush(struct rte_eth_dev *dev,
 {
 	struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 	struct rte_flow *p_flow;
+	void *temp;
 	int ret = 0;
 
-	TAILQ_FOREACH(p_flow, &pf->flow_list, node) {
+	TAILQ_FOREACH_SAFE(p_flow, &pf->flow_list, node, temp) {
 		ret = ice_flow_destroy(dev, p_flow, error);
 		if (ret) {
 			rte_flow_error_set(error, -ret,
-- 
2.17.1


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