netdev - [PATCH net-next 05/12] ethernet: r8169: use eth_hw_addr

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Message-Id: <20211018142932.1000613-6-kuba@kernel.org>
Date:   Mon, 18 Oct 2021 07:29:25 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        hkallweit1@...il.com, nic_swsd@...ltek.com
Subject: [PATCH net-next 05/12] ethernet: r8169: use eth_hw_addr_set()

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Read the address into an array on the stack, then call
eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: hkallweit1@...il.com
CC: nic_swsd@...ltek.com
---
 drivers/net/ethernet/realtek/r8169_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 0199914440ab..ee6c9c842012 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5217,7 +5217,7 @@ static int rtl_get_ether_clk(struct rtl8169_private *tp)
 static void rtl_init_mac_address(struct rtl8169_private *tp)
 {
 	struct net_device *dev = tp->dev;
-	u8 *mac_addr = dev->dev_addr;
+	u8 mac_addr[ETH_ALEN];
 	int rc;
 
 	rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
@@ -5235,6 +5235,7 @@ static void rtl_init_mac_address(struct rtl8169_private *tp)
 	eth_hw_addr_random(dev);
 	dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
 done:
+	eth_hw_addr_set(dev, mac_addr);
 	rtl_rar_set(tp, mac_addr);
 }
 
-- 
2.31.1