1 files changed, 79 insertions, 69 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 7a0f25301f7e..ed7212e61c54 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -90,6 +90,7 @@
 #include <net/tls.h>
 #endif
 #include <net/ip6_route.h>
+#include <net/xdp.h>
 
 #include "bonding_priv.h"
 
@@ -1508,6 +1509,11 @@ static void bond_setup_by_slave(struct net_device *bond_dev,
 
 	memcpy(bond_dev->broadcast, slave_dev->broadcast,
 		slave_dev->addr_len);
+
+	if (slave_dev->flags & IFF_POINTOPOINT) {
+		bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
+		bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP);
+	}
 }
 
 /* On bonding slaves other than the currently active slave, suppress
@@ -4441,11 +4447,6 @@ static int bond_eth_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cm
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct mii_ioctl_data *mii = NULL;
-	const struct net_device_ops *ops;
-	struct net_device *real_dev;
-	struct hwtstamp_config cfg;
-	struct ifreq ifrr;
-	int res = 0;
 
 	netdev_dbg(bond_dev, "bond_eth_ioctl: cmd=%d\n", cmd);
 
@@ -4472,44 +4473,11 @@ static int bond_eth_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cm
 		}
 
 		break;
-	case SIOCSHWTSTAMP:
-		if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
-			return -EFAULT;
-
-		if (!(cfg.flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX))
-			return -EOPNOTSUPP;
-
-		fallthrough;
-	case SIOCGHWTSTAMP:
-		real_dev = bond_option_active_slave_get_rcu(bond);
-		if (!real_dev)
-			return -EOPNOTSUPP;
-
-		strscpy_pad(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
-		ifrr.ifr_ifru = ifr->ifr_ifru;
-
-		ops = real_dev->netdev_ops;
-		if (netif_device_present(real_dev) && ops->ndo_eth_ioctl) {
-			res = ops->ndo_eth_ioctl(real_dev, &ifrr, cmd);
-			if (res)
-				return res;
-
-			ifr->ifr_ifru = ifrr.ifr_ifru;
-			if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
-				return -EFAULT;
-
-			/* Set the BOND_PHC_INDEX flag to notify user space */
-			cfg.flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX;
-
-			return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ?
-				-EFAULT : 0;
-		}
-		fallthrough;
 	default:
-		res = -EOPNOTSUPP;
+		return -EOPNOTSUPP;
 	}
 
-	return res;
+	return 0;
 }
 
 static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd)
@@ -5078,19 +5046,7 @@ static void bond_set_slave_arr(struct bonding *bond,
 
 static void bond_reset_slave_arr(struct bonding *bond)
 {
-	struct bond_up_slave *usable, *all;
-
-	usable = rtnl_dereference(bond->usable_slaves);
-	if (usable) {
-		RCU_INIT_POINTER(bond->usable_slaves, NULL);
-		kfree_rcu(usable, rcu);
-	}
-
-	all = rtnl_dereference(bond->all_slaves);
-	if (all) {
-		RCU_INIT_POINTER(bond->all_slaves, NULL);
-		kfree_rcu(all, rcu);
-	}
+	bond_set_slave_arr(bond, NULL, NULL);
 }
 
 /* Build the usable slaves array in control path for modes that use xmit-hash
@@ -5683,6 +5639,67 @@ static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed)
 	return speed;
 }
 
+/* Set the BOND_PHC_INDEX flag to notify user space */
+static int bond_set_phc_index_flag(struct kernel_hwtstamp_config *kernel_cfg)
+{
+	struct ifreq *ifr = kernel_cfg->ifr;
+	struct hwtstamp_config cfg;
+
+	if (kernel_cfg->copied_to_user) {
+		/* Lower device has a legacy implementation */
+		if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
+			return -EFAULT;
+
+		cfg.flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX;
+		if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)))
+			return -EFAULT;
+	} else {
+		kernel_cfg->flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX;
+	}
+
+	return 0;
+}
+
+static int bond_hwtstamp_get(struct net_device *dev,
+			     struct kernel_hwtstamp_config *cfg)
+{
+	struct bonding *bond = netdev_priv(dev);
+	struct net_device *real_dev;
+	int err;
+
+	real_dev = bond_option_active_slave_get_rcu(bond);
+	if (!real_dev)
+		return -EOPNOTSUPP;
+
+	err = generic_hwtstamp_get_lower(real_dev, cfg);
+	if (err)
+		return err;
+
+	return bond_set_phc_index_flag(cfg);
+}
+
+static int bond_hwtstamp_set(struct net_device *dev,
+			     struct kernel_hwtstamp_config *cfg,
+			     struct netlink_ext_ack *extack)
+{
+	struct bonding *bond = netdev_priv(dev);
+	struct net_device *real_dev;
+	int err;
+
+	if (!(cfg->flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX))
+		return -EOPNOTSUPP;
+
+	real_dev = bond_option_active_slave_get_rcu(bond);
+	if (!real_dev)
+		return -EOPNOTSUPP;
+
+	err = generic_hwtstamp_set_lower(real_dev, cfg, extack);
+	if (err)
+		return err;
+
+	return bond_set_phc_index_flag(cfg);
+}
+
 static int bond_ethtool_get_link_ksettings(struct net_device *bond_dev,
 					   struct ethtool_link_ksettings *cmd)
 {
@@ -5701,6 +5718,7 @@ static int bond_ethtool_get_link_ksettings(struct net_device *bond_dev,
 	 */
 	bond_for_each_slave(bond, slave, iter) {
 		if (bond_slave_can_tx(slave)) {
+			bond_update_speed_duplex(slave);
 			if (slave->speed != SPEED_UNKNOWN) {
 				if (BOND_MODE(bond) == BOND_MODE_BROADCAST)
 					speed = bond_mode_bcast_speed(slave,
@@ -5831,6 +5849,8 @@ static const struct net_device_ops bond_netdev_ops = {
 	.ndo_bpf		= bond_xdp,
 	.ndo_xdp_xmit           = bond_xdp_xmit,
 	.ndo_xdp_get_xmit_slave = bond_xdp_get_xmit_slave,
+	.ndo_hwtstamp_get	= bond_hwtstamp_get,
+	.ndo_hwtstamp_set	= bond_hwtstamp_set,
 };
 
 static const struct device_type bond_type = {
@@ -5844,8 +5864,7 @@ static void bond_destructor(struct net_device *bond_dev)
 	if (bond->wq)
 		destroy_workqueue(bond->wq);
 
-	if (bond->rr_tx_counter)
-		free_percpu(bond->rr_tx_counter);
+	free_percpu(bond->rr_tx_counter);
 }
 
 void bond_setup(struct net_device *bond_dev)
@@ -5896,7 +5915,9 @@ void bond_setup(struct net_device *bond_dev)
 
 	bond_dev->hw_features = BOND_VLAN_FEATURES |
 				NETIF_F_HW_VLAN_CTAG_RX |
-				NETIF_F_HW_VLAN_CTAG_FILTER;
+				NETIF_F_HW_VLAN_CTAG_FILTER |
+				NETIF_F_HW_VLAN_STAG_RX |
+				NETIF_F_HW_VLAN_STAG_FILTER;
 
 	bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
 	bond_dev->features |= bond_dev->hw_features;
@@ -5918,7 +5939,6 @@ void bond_setup(struct net_device *bond_dev)
 static void bond_uninit(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct bond_up_slave *usable, *all;
 	struct list_head *iter;
 	struct slave *slave;
 
@@ -5929,17 +5949,7 @@ static void bond_uninit(struct net_device *bond_dev)
 		__bond_release_one(bond_dev, slave->dev, true, true);
 	netdev_info(bond_dev, "Released all slaves\n");
 
-	usable = rtnl_dereference(bond->usable_slaves);
-	if (usable) {
-		RCU_INIT_POINTER(bond->usable_slaves, NULL);
-		kfree_rcu(usable, rcu);
-	}
-
-	all = rtnl_dereference(bond->all_slaves);
-	if (all) {
-		RCU_INIT_POINTER(bond->all_slaves, NULL);
-		kfree_rcu(all, rcu);
-	}
+	bond_set_slave_arr(bond, NULL, NULL);
 
 	list_del(&bond->bond_list);
 
@@ -5948,7 +5958,7 @@ static void bond_uninit(struct net_device *bond_dev)
 
 /*------------------------- Module initialization ---------------------------*/
 
-static int bond_check_params(struct bond_params *params)
+static int __init bond_check_params(struct bond_params *params)
 {
 	int arp_validate_value, fail_over_mac_value, primary_reselect_value, i;
 	struct bond_opt_value newval;