netdev - [PATCH net-next 3/6] ethernet: tehuti: use eth_hw_addr

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Message-Id: <20211019150011.1355755-4-kuba@kernel.org>
Date:   Tue, 19 Oct 2021 08:00:08 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        andy@...yhouse.net
Subject: [PATCH net-next 3/6] ethernet: tehuti: 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.

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

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: andy@...yhouse.net
---
 drivers/net/ethernet/tehuti/tehuti.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index 3e8a3fde8302..0775a5542f2f 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -840,6 +840,7 @@ static int bdx_set_mac(struct net_device *ndev, void *p)
 static int bdx_read_mac(struct bdx_priv *priv)
 {
 	u16 macAddress[3], i;
+	u8 addr[ETH_ALEN];
 	ENTER;
 
 	macAddress[2] = READ_REG(priv, regUNC_MAC0_A);
@@ -849,9 +850,10 @@ static int bdx_read_mac(struct bdx_priv *priv)
 	macAddress[0] = READ_REG(priv, regUNC_MAC2_A);
 	macAddress[0] = READ_REG(priv, regUNC_MAC2_A);
 	for (i = 0; i < 3; i++) {
-		priv->ndev->dev_addr[i * 2 + 1] = macAddress[i];
-		priv->ndev->dev_addr[i * 2] = macAddress[i] >> 8;
+		addr[i * 2 + 1] = macAddress[i];
+		addr[i * 2] = macAddress[i] >> 8;
 	}
+	eth_hw_addr_set(priv->ndev, addr);
 	RET(0);
 }
 
-- 
2.31.1