From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Sat, 2 Sep 2017 11:06:49 +0200
Subject: net: mvpp2: fallback using h/w and random mac if the dt one isn't
valid
Patch-mainline: v4.14-rc1
Git-commit: 688cbaf202df8b4a69f5ccd39e0027f179852d44
References: bsc#1098633
When using a mac address described in the device tree, a check is made
to see if it is valid. When it's not, no fallback is defined. This
patches tries to get the mac address from h/w (or use a random one if
the h/w one isn't valid) when the dt mac address isn't valid.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/marvell/mvpp2.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -7477,19 +7477,20 @@ static void mvpp2_port_copy_mac_addr(str
if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
*mac_from = "device tree";
ether_addr_copy(dev->dev_addr, dt_mac_addr);
- } else {
- if (priv->hw_version == MVPP21) {
- mvpp21_get_mac_address(port, hw_mac_addr);
- if (is_valid_ether_addr(hw_mac_addr)) {
- *mac_from = "hardware";
- ether_addr_copy(dev->dev_addr, hw_mac_addr);
- return;
- }
- }
+ return;
+ }
- *mac_from = "random";
- eth_hw_addr_random(dev);
+ if (priv->hw_version == MVPP21) {
+ mvpp21_get_mac_address(port, hw_mac_addr);
+ if (is_valid_ether_addr(hw_mac_addr)) {
+ *mac_from = "hardware";
+ ether_addr_copy(dev->dev_addr, hw_mac_addr);
+ return;
+ }
}
+
+ *mac_from = "random";
+ eth_hw_addr_random(dev);
}
/* Ports initialization */