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From: Lunyuan Cui <lunyuanx.cui@intel.com>
To: dev@dpdk.org
Cc: Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Lunyuan Cui <lunyuanx.cui@intel.com>,
	stable@dpdk.org
Subject: [dpdk-stable] [PATCH v2] net/e1000: fix link status update
Date: Fri, 15 Nov 2019 14:48:23 +0000	[thread overview]
Message-ID: <20191115144823.3647-1-lunyuanx.cui@intel.com> (raw)
In-Reply-To: <20191113173243.90826-1-lunyuanx.cui@intel.com>

Unassigned variable should not be used as judgment, and there
is no need to update link status according to old link status.
This patch fix the issue.

Fixes: 80ba61115e77 ("net/e1000: use link status helper functions")
Cc: stable@dpdk.org

Signed-off-by: Lunyuan Cui <lunyuanx.cui@intel.com>
---
 drivers/net/e1000/em_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 9a88b50b2..7959ee4e9 100644
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -1157,7 +1157,7 @@ eth_em_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 	memset(&link, 0, sizeof(link));
 
 	/* Now we check if a transition has happened */
-	if (link_check && (link.link_status == ETH_LINK_DOWN)) {
+	if (link_check) {
 		uint16_t duplex, speed;
 		hw->mac.ops.get_link_up_info(hw, &speed, &duplex);
 		link.link_duplex = (duplex == FULL_DUPLEX) ?
@@ -1167,7 +1167,7 @@ eth_em_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 		link.link_status = ETH_LINK_UP;
 		link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 				ETH_LINK_SPEED_FIXED);
-	} else if (!link_check && (link.link_status == ETH_LINK_UP)) {
+	} else {
 		link.link_speed = ETH_SPEED_NUM_NONE;
 		link.link_duplex = ETH_LINK_HALF_DUPLEX;
 		link.link_status = ETH_LINK_DOWN;
-- 
2.17.1


  parent reply	other threads:[~2019-11-15  6:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-13 17:32 [dpdk-stable] [PATCH] " Cui LunyuanX
2019-11-14  6:41 ` [dpdk-stable] [dpdk-dev] " Ye Xiaolong
2019-11-15 14:48 ` Lunyuan Cui [this message]
2019-11-18  3:06   ` [dpdk-stable] [dpdk-dev] [PATCH v2] " Ye Xiaolong
2019-11-18  3:21     ` Cui, LunyuanX
2019-11-18  3:28       ` Ye Xiaolong
2019-11-18 14:58   ` [dpdk-stable] [PATCH v3] " Lunyuan Cui
2019-11-18  7:23     ` [dpdk-stable] [dpdk-dev] " Ye Xiaolong
2019-11-19  6:43     ` [dpdk-stable] " Lu, Wenzhuo
2019-11-20  9:22     ` [dpdk-stable] [PATCH v4] " Lunyuan Cui
2019-11-26  2:24       ` [dpdk-stable] [dpdk-dev] " Ye Xiaolong
2019-11-26  2:04 ` [dpdk-stable] [PATCH] " Lu, Wenzhuo

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