netdev - [PATCH net-next 01/12] ethernet: mv643xx: use eth_hw_addr

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Message-Id: <20211018142932.1000613-2-kuba@kernel.org>
Date:   Mon, 18 Oct 2021 07:29:21 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        sebastian.hesselbarth@...il.com
Subject: [PATCH net-next 01/12] ethernet: mv643xx: 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: sebastian.hesselbarth@...il.com
---
 drivers/net/ethernet/marvell/mv643xx_eth.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index a63d9a5c8059..bb14fa2241a3 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2925,10 +2925,14 @@ static void set_params(struct mv643xx_eth_private *mp,
 	struct net_device *dev = mp->dev;
 	unsigned int tx_ring_size;
 
-	if (is_valid_ether_addr(pd->mac_addr))
+	if (is_valid_ether_addr(pd->mac_addr)) {
 		eth_hw_addr_set(dev, pd->mac_addr);
-	else
-		uc_addr_get(mp, dev->dev_addr);
+	} else {
+		u8 addr[ETH_ALEN];
+
+		uc_addr_get(mp, addr);
+		eth_hw_addr_set(dev, addr);
+	}
 
 	mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
 	if (pd->rx_queue_size)
-- 
2.31.1