[dpdk-dev] [PATCH] ixgbe:set txep.mbuf to NULL when calling ixgbe_tx_free_bufs

[hepeng]

In *ixgbe_tx_free_bufs*, after recycling some tx entries, one should set their mbuf pointers to NULL.

Signed-off-by: hepeng <xnhp0320 at icloud.com>
---
 drivers/net/ixgbe/ixgbe_rxtx_vec.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec.c b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
index 1c16dec..813b168 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
@@ -615,9 +615,11 @@ ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
 	if (likely(m != NULL)) {
 		free[0] = m;
 		nb_free = 1;
+        txep[0].mbuf = NULL;
 		for (i = 1; i < n; i++) {
 			m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
 			if (likely(m != NULL)) {
+                txep[0].mbuf = NULL;
 				if (likely(m->pool == free[0]->pool))
 					free[nb_free++] = m;
 				else {
@@ -632,8 +634,10 @@ ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
 	} else {
 		for (i = 1; i < n; i++) {
 			m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
-			if (m != NULL)
+			if (m != NULL) {
+                txep[0].mbuf = NULL;
 				rte_mempool_put(m->pool, m);
+            }
 		}
 	}
 
-- 
1.9.1