Hello!
On 16.04.2021 11:47, Thomas Bogendoerfer wrote:
If there is no mac address passed via platform data try to get it via > device
tree and fall back to a random mac address, if all fail.
Signed-off-by: Thomas Bogendoerfer <tsbog...@alpha.franken.de>
---
drivers/net/ethernet/korina.c | 24 ++++++++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index d6dbbdd43d7c..cd078a5c679b 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -43,6 +43,8 @@
#include <linux/ioport.h>
#include <linux/iopoll.h>
#include <linux/in.h>
+#include <linux/of_device.h>
+#include <linux/of_net.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/delay.h>
@@ -1068,7 +1070,12 @@ static int korina_probe(struct platform_device *pdev)
SET_NETDEV_DEV(dev, &pdev->dev);
lp = netdev_priv(dev);
- memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
+ if (mac_addr) {
+ ether_addr_copy(dev->dev_addr, mac_addr);
+ } else {
+ if (of_get_mac_address(pdev->dev.of_node, dev->dev_addr))
*else* *if* here, and no need for {} then? :-)
+ eth_hw_addr_random(dev);
+ }
lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
[...]
MBR, Sergei
