ethernet: smc91x: 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@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index b008b4e..89381f7 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -1788,6 +1788,7 @@ static int smc911x_probe(struct net_device *dev)
 	struct dma_slave_config	config;
 	dma_cap_mask_t mask;
 #endif
+	u8 addr[ETH_ALEN];
 
 	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
@@ -1892,7 +1893,8 @@ static int smc911x_probe(struct net_device *dev)
 	spin_lock_init(&lp->lock);
 
 	/* Get the MAC address */
-	SMC_GET_MAC_ADDR(lp, dev->dev_addr);
+	SMC_GET_MAC_ADDR(lp, addr);
+	eth_hw_addr_set(dev, addr);
 
 	/* now, reset the chip, and put it into a known state */
 	smc911x_reset(dev);