[PATCH net-next 2/3] net: mvpp2: set mac address does not require the stop/start sequence

[Antoine Tenart]

From: Yan Markman <ymark...@marvell.com>

Remove special stop/start handling from the set_mac_address callback.
All this special care is not needed, and can be removed. It also
simplifies the up/down status in the driver and helps avoiding possible
link status mismatch issues.

Signed-off-by: Yan Markman <ymark...@marvell.com>
[Antoine: commit message]
Signed-off-by: Antoine Tenart <antoine.ten...@bootlin.com>
---
 drivers/net/ethernet/marvell/mvpp2.c | 38 +++++-----------------------
 1 file changed, 7 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2.c 
b/drivers/net/ethernet/marvell/mvpp2.c
index 73b2f2d331c5..a9483da18e00 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -7358,42 +7358,18 @@ static void mvpp2_set_rx_mode(struct net_device *dev)
 
 static int mvpp2_set_mac_address(struct net_device *dev, void *p)
 {
-       struct mvpp2_port *port = netdev_priv(dev);
        const struct sockaddr *addr = p;
        int err;
 
-       if (!is_valid_ether_addr(addr->sa_data)) {
-               err = -EADDRNOTAVAIL;
-               goto log_error;
-       }
-
-       if (!netif_running(dev)) {
-               err = mvpp2_prs_update_mac_da(dev, addr->sa_data);
-               if (!err)
-                       return 0;
-               /* Reconfigure parser to accept the original MAC address */
-               err = mvpp2_prs_update_mac_da(dev, dev->dev_addr);
-               if (err)
-                       goto log_error;
-       }
-
-       mvpp2_stop_dev(port);
+       if (!is_valid_ether_addr(addr->sa_data))
+               return -EADDRNOTAVAIL;
 
        err = mvpp2_prs_update_mac_da(dev, addr->sa_data);
-       if (!err)
-               goto out_start;
-
-       /* Reconfigure parser accept the original MAC address */
-       err = mvpp2_prs_update_mac_da(dev, dev->dev_addr);
-       if (err)
-               goto log_error;
-out_start:
-       mvpp2_start_dev(port);
-       mvpp2_egress_enable(port);
-       mvpp2_ingress_enable(port);
-       return 0;
-log_error:
-       netdev_err(dev, "failed to change MAC address\n");
+       if (err) {
+               /* Reconfigure parser accept the original MAC address */
+               mvpp2_prs_update_mac_da(dev, dev->dev_addr);
+               netdev_err(dev, "failed to change MAC address\n");
+       }
        return err;
 }
 
-- 
2.17.0