linux-kernel - [PATCH 2/5] ARCNET: add com20020_set

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Message-Id: <1411566113-15583-3-git-send-email-m.grzeschik@pengutronix.de>
Date:	Wed, 24 Sep 2014 15:41:50 +0200
From:	Michael Grzeschik <m.grzeschik@...gutronix.de>
To:	netdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: [PATCH 2/5] ARCNET: add com20020_set_hwddr to change address

This patch adds com20020_set_hwaddr to make
it possible to change the hwaddr on runtime.

Signed-off-by: Michael Grzeschik <m.grzeschik@...gutronix.de>
---
 drivers/net/arcnet/com20020.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c
index 7b96c5f..1a84378 100644
--- a/drivers/net/arcnet/com20020.c
+++ b/drivers/net/arcnet/com20020.c
@@ -149,11 +149,25 @@ int com20020_check(struct net_device *dev)
 	return 0;
 }
 
+static int com20020_set_hwaddr(struct net_device *dev, void *addr)
+{
+	int ioaddr = dev->base_addr;
+	struct arcnet_local *lp = netdev_priv(dev);
+	struct sockaddr *hwaddr = addr;
+
+	memcpy(dev->dev_addr, hwaddr->sa_data, 1);
+	SET_SUBADR(SUB_NODE);
+	outb(dev->dev_addr[0], _XREG);
+
+	return 0;
+}
+
 const struct net_device_ops com20020_netdev_ops = {
 	.ndo_open	= arcnet_open,
 	.ndo_stop	= arcnet_close,
 	.ndo_start_xmit = arcnet_send_packet,
 	.ndo_tx_timeout = arcnet_timeout,
+	.ndo_set_mac_address = com20020_set_hwaddr,
 	.ndo_set_rx_mode = com20020_set_mc_list,
 };
 
-- 
2.1.0

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