netdev - [PATCH v1] net: thunderx: Use fwnode_get_mac

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Message-Id: <20190723200344.69864-1-andriy.shevchenko@linux.intel.com>
Date:   Tue, 23 Jul 2019 23:03:43 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Sunil Goutham <sgoutham@...ium.com>,
        Robert Richter <rric@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1] net: thunderx: Use fwnode_get_mac_address()

Replace the custom implementation with fwnode_get_mac_address,
which works on both DT and ACPI platforms.

While here, replace memcpy() by ether_addr_copy().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 .../net/ethernet/cavium/thunder/thunder_bgx.c  | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index ad22554857bf..acb016834f04 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1381,24 +1381,18 @@ static int acpi_get_mac_address(struct device *dev, struct acpi_device *adev,
 				u8 *dst)
 {
 	u8 mac[ETH_ALEN];
-	int ret;
+	u8 *addr;
 
-	ret = fwnode_property_read_u8_array(acpi_fwnode_handle(adev),
-					    "mac-address", mac, ETH_ALEN);
-	if (ret)
-		goto out;
-
-	if (!is_valid_ether_addr(mac)) {
+	addr = fwnode_get_mac_address(acpi_fwnode_handle(adev), mac, ETH_ALEN);
+	if (!addr) {
 		dev_err(dev, "MAC address invalid: %pM\n", mac);
-		ret = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	dev_info(dev, "MAC address set to: %pM\n", mac);
 
-	memcpy(dst, mac, ETH_ALEN);
-out:
-	return ret;
+	ether_addr_copy(dst, mac);
+	return 0;
 }
 
 /* Currently only sets the MAC address. */
-- 
2.20.1