Merge branch 'dev_addr-dont-write'

Jakub Kicinski says:

====================
don't write directly to netdev->dev_addr

Constify references to netdev->dev_addr and
use appropriate helpers.

v2: s/got/go/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

7 files changed, 23 insertions, 24 deletions

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 7d3752cbf761..2ec8e015c7b3 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -50,7 +50,7 @@ struct arp_pkt {
 #pragma pack()
 
 /* Forward declaration */
-static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[],
+static void alb_send_learning_packets(struct slave *slave, const u8 mac_addr[],
 				      bool strict_match);
 static void rlb_purge_src_ip(struct bonding *bond, struct arp_pkt *arp);
 static void rlb_src_unlink(struct bonding *bond, u32 index);
@@ -353,7 +353,8 @@ static struct slave *rlb_next_rx_slave(struct bonding *bond)
  *
  * Caller must hold RTNL
  */
-static void rlb_teach_disabled_mac_on_primary(struct bonding *bond, u8 addr[])
+static void rlb_teach_disabled_mac_on_primary(struct bonding *bond,
+					      const u8 addr[])
 {
 	struct slave *curr_active = rtnl_dereference(bond->curr_active_slave);
 
@@ -904,7 +905,7 @@ static void rlb_clear_vlan(struct bonding *bond, unsigned short vlan_id)
 
 /*********************** tlb/rlb shared functions *********************/
 
-static void alb_send_lp_vid(struct slave *slave, u8 mac_addr[],
+static void alb_send_lp_vid(struct slave *slave, const u8 mac_addr[],
 			    __be16 vlan_proto, u16 vid)
 {
 	struct learning_pkt pkt;
@@ -940,7 +941,7 @@ static void alb_send_lp_vid(struct slave *slave, u8 mac_addr[],
 struct alb_walk_data {
 	struct bonding *bond;
 	struct slave *slave;
-	u8 *mac_addr;
+	const u8 *mac_addr;
 	bool strict_match;
 };
 
@@ -949,9 +950,9 @@ static int alb_upper_dev_walk(struct net_device *upper,
 {
 	struct alb_walk_data *data = (struct alb_walk_data *)priv->data;
 	bool strict_match = data->strict_match;
+	const u8 *mac_addr = data->mac_addr;
 	struct bonding *bond = data->bond;
 	struct slave *slave = data->slave;
-	u8 *mac_addr = data->mac_addr;
 	struct bond_vlan_tag *tags;
 
 	if (is_vlan_dev(upper) &&
@@ -982,7 +983,7 @@ static int alb_upper_dev_walk(struct net_device *upper,
 	return 0;
 }
 
-static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[],
+static void alb_send_learning_packets(struct slave *slave, const u8 mac_addr[],
 				      bool strict_match)
 {
 	struct bonding *bond = bond_get_bond_by_slave(slave);
@@ -1006,14 +1007,14 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[],
 	rcu_read_unlock();
 }
 
-static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[],
+static int alb_set_slave_mac_addr(struct slave *slave, const u8 addr[],
 				  unsigned int len)
 {
 	struct net_device *dev = slave->dev;
 	struct sockaddr_storage ss;
 
 	if (BOND_MODE(slave->bond) == BOND_MODE_TLB) {
-		memcpy(dev->dev_addr, addr, len);
+		__dev_addr_set(dev, addr, len);
 		return 0;
 	}
 
@@ -1242,8 +1243,7 @@ static int alb_set_mac_address(struct bonding *bond, void *addr)
 		res = dev_set_mac_address(slave->dev, addr, NULL);
 
 		/* restore net_device's hw address */
-		bond_hw_addr_copy(slave->dev->dev_addr, tmp_addr,
-				  slave->dev->addr_len);
+		dev_addr_set(slave->dev, tmp_addr);
 
 		if (res)
 			goto unwind;
@@ -1263,8 +1263,7 @@ unwind:
 				  rollback_slave->dev->addr_len);
 		dev_set_mac_address(rollback_slave->dev,
 				    (struct sockaddr *)&ss, NULL);
-		bond_hw_addr_copy(rollback_slave->dev->dev_addr, tmp_addr,
-				  rollback_slave->dev->addr_len);
+		dev_addr_set(rollback_slave->dev, tmp_addr);
 	}
 
 	return res;
@@ -1727,8 +1726,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 		dev_set_mac_address(new_slave->dev, (struct sockaddr *)&ss,
 				    NULL);
 
-		bond_hw_addr_copy(new_slave->dev->dev_addr, tmp_addr,
-				  new_slave->dev->addr_len);
+		dev_addr_set(new_slave->dev, tmp_addr);
 	}
 
 	/* curr_active_slave must be set before calling alb_swap_mac_addr */
@@ -1761,7 +1759,7 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
 	if (res)
 		return res;
 
-	bond_hw_addr_copy(bond_dev->dev_addr, ss->__data, bond_dev->addr_len);
+	dev_addr_set(bond_dev, ss->__data);
 
 	/* If there is no curr_active_slave there is nothing else to do.
 	 * Otherwise we'll need to pass the new address to it and handle
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0c52612cb8e9..ff8da720a33a 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -923,7 +923,7 @@ static int bond_set_dev_addr(struct net_device *bond_dev,
 	if (err)
 		return err;
 
-	memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
+	__dev_addr_set(bond_dev, slave_dev->dev_addr, slave_dev->addr_len);
 	bond_dev->addr_assign_type = NET_ADDR_STOLEN;
 	call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
 	return 0;
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 18b6dba9394e..16aa3a478e9e 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -250,7 +250,7 @@ static bool send_sci(const struct macsec_secy *secy)
 		(secy->n_rx_sc > 1 && !tx_sc->end_station && !tx_sc->scb);
 }
 
-static sci_t make_sci(u8 *addr, __be16 port)
+static sci_t make_sci(const u8 *addr, __be16 port)
 {
 	sci_t sci;
 
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 6189acb33973..d2f830ec2969 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -698,7 +698,8 @@ hash_del:
 	return 0;
 }
 
-static int macvlan_sync_address(struct net_device *dev, unsigned char *addr)
+static int macvlan_sync_address(struct net_device *dev,
+				const unsigned char *addr)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	struct net_device *lowerdev = vlan->lowerdev;
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 914619f3f0e3..8561f2d4443b 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -182,7 +182,7 @@ static int dp83867_set_wol(struct phy_device *phydev,
 {
 	struct net_device *ndev = phydev->attached_dev;
 	u16 val_rxcfg, val_micr;
-	u8 *mac;
+	const u8 *mac;
 
 	val_rxcfg = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_RXFCFG);
 	val_micr = phy_read(phydev, MII_DP83867_MICR);
@@ -193,7 +193,7 @@ static int dp83867_set_wol(struct phy_device *phydev,
 		val_micr |= MII_DP83867_MICR_WOL_INT_EN;
 
 		if (wol->wolopts & WAKE_MAGIC) {
-			mac = (u8 *)ndev->dev_addr;
+			mac = (const u8 *)ndev->dev_addr;
 
 			if (!is_valid_ether_addr(mac))
 				return -EINVAL;
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
index 755220c6451f..7113925606f7 100644
--- a/drivers/net/phy/dp83869.c
+++ b/drivers/net/phy/dp83869.c
@@ -246,7 +246,7 @@ static int dp83869_set_wol(struct phy_device *phydev,
 {
 	struct net_device *ndev = phydev->attached_dev;
 	int val_rxcfg, val_micr;
-	u8 *mac;
+	const u8 *mac;
 	int ret;
 
 	val_rxcfg = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_RXFCFG);
@@ -264,7 +264,7 @@ static int dp83869_set_wol(struct phy_device *phydev,
 
 		if (wol->wolopts & WAKE_MAGIC ||
 		    wol->wolopts & WAKE_MAGICSECURE) {
-			mac = (u8 *)ndev->dev_addr;
+			mac = (const u8 *)ndev->dev_addr;
 
 			if (!is_valid_ether_addr(mac))
 				return -EINVAL;
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 7a205ddf0060..3e1b7746cce4 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -46,7 +46,7 @@ MODULE_DEVICE_TABLE(pci, vmxnet3_pciid_table);
 static int enable_mq = 1;
 
 static void
-vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac);
+vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, const u8 *mac);
 
 /*
  *    Enable/Disable the given intr
@@ -2806,7 +2806,7 @@ vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter)
 
 
 static void
-vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac)
+vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, const u8 *mac)
 {
 	u32 tmp;