linux-kernel - [PATCH 3.16 45/63] stmmac: copy unicast mac address to MAC registers

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Date:   Wed, 08 Jan 2020 19:43:43 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Bhadram Varka" <vbhadram@...dia.com>,
        "Arnd Bergmann" <arnd@...db.de>
Subject: [PATCH 3.16 45/63] stmmac: copy unicast mac address to MAC registers

3.16.81-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Bhadram Varka <vbhadram@...dia.com>

commit a830405ee452ddc4101c3c9334e6fedd42c6b357 upstream.

Currently stmmac driver not copying the valid ethernet
MAC address to MAC registers. This patch takes care
of updating the MAC register with MAC address.

Signed-off-by: Bhadram Varka <vbhadram@...dia.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Cc: Arnd Bergmann <arnd@...db.de>
[bwh: Backported to 3.16:
 - Pass priv->ioaddr as first argument to set_umac_addr operation
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 .../net/ethernet/stmicro/stmmac/stmmac_main.c    | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2388,6 +2388,20 @@ static int stmmac_ioctl(struct net_devic
 	return ret;
 }
 
+static int stmmac_set_mac_address(struct net_device *ndev, void *addr)
+{
+	struct stmmac_priv *priv = netdev_priv(ndev);
+	int ret = 0;
+
+	ret = eth_mac_addr(ndev, addr);
+	if (ret)
+		return ret;
+
+	priv->hw->mac->set_umac_addr(priv->ioaddr, ndev->dev_addr, 0);
+
+	return ret;
+}
+
 #ifdef CONFIG_STMMAC_DEBUG_FS
 static struct dentry *stmmac_fs_dir;
 static struct dentry *stmmac_rings_status;
@@ -2587,7 +2601,7 @@ static const struct net_device_ops stmma
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller = stmmac_poll_controller,
 #endif
-	.ndo_set_mac_address = eth_mac_addr,
+	.ndo_set_mac_address = stmmac_set_mac_address,
 };
 
 /**