[dpdk-stable] [PATCH v2] net/e1000: fix link status update

[Lunyuan Cui]

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 at dpdk.org

Signed-off-by: Lunyuan Cui <lunyuanx.cui at 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