Merge branch 'bonding-cleanup-header-file-and-error-msgs'

Jonathan Toppins says:

====================
bonding: cleanup header file and error msgs

Two small patches removing unreferenced symbols and unifying error
messages across netlink and printk.
====================

Link: https://lore.kernel.org/r/cover.1628650079.git.jtoppins@redhat.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/net/bonding/bond_main.c

@@ -1725,6 +1725,20 @@ void bond_lower_state_changed(struct slave *slave)
 	netdev_lower_state_changed(slave->dev, &info);
 }
 
+#define BOND_NL_ERR(bond_dev, extack, errmsg) do {		\
+	if (extack)						\
+		NL_SET_ERR_MSG(extack, errmsg);			\
+	else							\
+		netdev_err(bond_dev, "Error: %s\n", errmsg);	\
+} while (0)
+
+#define SLAVE_NL_ERR(bond_dev, slave_dev, extack, errmsg) do {		\
+	if (extack)							\
+		NL_SET_ERR_MSG(extack, errmsg);				\
+	else								\
+		slave_err(bond_dev, slave_dev, "Error: %s\n", errmsg);	\
+} while (0)
+
 /* enslave device <slave> to bond device <master> */
 int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 		 struct netlink_ext_ack *extack)
@@ -1738,9 +1752,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 
 	if (slave_dev->flags & IFF_MASTER &&
 	    !netif_is_bond_master(slave_dev)) {
-		NL_SET_ERR_MSG(extack, "Device with IFF_MASTER cannot be enslaved");
-		netdev_err(bond_dev,
-			   "Error: Device with IFF_MASTER cannot be enslaved\n");
+		BOND_NL_ERR(bond_dev, extack,
+			    "Device with IFF_MASTER cannot be enslaved");
 		return -EPERM;
 	}
 
@@ -1752,15 +1765,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 
 	/* already in-use? */
 	if (netdev_is_rx_handler_busy(slave_dev)) {
-		NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved");
-		slave_err(bond_dev, slave_dev,
-			  "Error: Device is in use and cannot be enslaved\n");
+		SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+			     "Device is in use and cannot be enslaved");
 		return -EBUSY;
 	}
 
 	if (bond_dev == slave_dev) {
-		NL_SET_ERR_MSG(extack, "Cannot enslave bond to itself.");
-		netdev_err(bond_dev, "cannot enslave bond to itself.\n");
+		BOND_NL_ERR(bond_dev, extack, "Cannot enslave bond to itself.");
 		return -EPERM;
 	}
 
@@ -1769,8 +1780,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 	if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) {
 		slave_dbg(bond_dev, slave_dev, "is NETIF_F_VLAN_CHALLENGED\n");
 		if (vlan_uses_dev(bond_dev)) {
-			NL_SET_ERR_MSG(extack, "Can not enslave VLAN challenged device to VLAN enabled bond");
-			slave_err(bond_dev, slave_dev, "Error: cannot enslave VLAN challenged slave on VLAN enabled bond\n");
+			SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+				     "Can not enslave VLAN challenged device to VLAN enabled bond");
 			return -EPERM;
 		} else {
 			slave_warn(bond_dev, slave_dev, "enslaved VLAN challenged slave. Adding VLANs will be blocked as long as it is part of bond.\n");
@@ -1788,8 +1799,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 	 * enslaving it; the old ifenslave will not.
 	 */
 	if (slave_dev->flags & IFF_UP) {
-		NL_SET_ERR_MSG(extack, "Device can not be enslaved while up");
-		slave_err(bond_dev, slave_dev, "slave is up - this may be due to an out of date ifenslave\n");
+		SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+			     "Device can not be enslaved while up");
 		return -EPERM;
 	}
 
@@ -1828,17 +1839,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 						 bond_dev);
 		}
 	} else if (bond_dev->type != slave_dev->type) {
-		NL_SET_ERR_MSG(extack, "Device type is different from other slaves");
-		slave_err(bond_dev, slave_dev, "ether type (%d) is different from other slaves (%d), can not enslave it\n",
-			  slave_dev->type, bond_dev->type);
+		SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+			     "Device type is different from other slaves");
 		return -EINVAL;
 	}
 
 	if (slave_dev->type == ARPHRD_INFINIBAND &&
 	    BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
-		NL_SET_ERR_MSG(extack, "Only active-backup mode is supported for infiniband slaves");
-		slave_warn(bond_dev, slave_dev, "Type (%d) supports only active-backup mode\n",
-			   slave_dev->type);
+		SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+			     "Only active-backup mode is supported for infiniband slaves");
 		res = -EOPNOTSUPP;
 		goto err_undo_flags;
 	}
@@ -1852,8 +1861,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 				bond->params.fail_over_mac = BOND_FOM_ACTIVE;
 				slave_warn(bond_dev, slave_dev, "Setting fail_over_mac to active for active-backup mode\n");
 			} else {
-				NL_SET_ERR_MSG(extack, "Slave device does not support setting the MAC address, but fail_over_mac is not set to active");
-				slave_err(bond_dev, slave_dev, "The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active\n");
+				SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+					     "Slave device does not support setting the MAC address, but fail_over_mac is not set to active");
 				res = -EOPNOTSUPP;
 				goto err_undo_flags;
 			}
@@ -2149,8 +2158,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 	if (!slave_dev->netdev_ops->ndo_bpf ||
 	    !slave_dev->netdev_ops->ndo_xdp_xmit) {
 		if (bond->xdp_prog) {
-			NL_SET_ERR_MSG(extack, "Slave does not support XDP");
-			slave_err(bond_dev, slave_dev, "Slave does not support XDP\n");
+			SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+				     "Slave does not support XDP");
 			res = -EOPNOTSUPP;
 			goto err_sysfs_del;
 		}
@@ -2163,10 +2172,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 		};
 
 		if (dev_xdp_prog_count(slave_dev) > 0) {
-			NL_SET_ERR_MSG(extack,
-				       "Slave has XDP program loaded, please unload before enslaving");
-			slave_err(bond_dev, slave_dev,
-				  "Slave has XDP program loaded, please unload before enslaving\n");
+			SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+				     "Slave has XDP program loaded, please unload before enslaving");
 			res = -EOPNOTSUPP;
 			goto err_sysfs_del;
 		}
@@ -5190,17 +5197,15 @@ static int bond_xdp_set(struct net_device *dev, struct bpf_prog *prog,
 
 		if (!slave_dev->netdev_ops->ndo_bpf ||
 		    !slave_dev->netdev_ops->ndo_xdp_xmit) {
-			NL_SET_ERR_MSG(extack, "Slave device does not support XDP");
-			slave_err(dev, slave_dev, "Slave does not support XDP\n");
+			SLAVE_NL_ERR(dev, slave_dev, extack,
+				     "Slave device does not support XDP");
 			err = -EOPNOTSUPP;
 			goto err;
 		}
 
 		if (dev_xdp_prog_count(slave_dev) > 0) {
-			NL_SET_ERR_MSG(extack,
-				       "Slave has XDP program loaded, please unload before enslaving");
-			slave_err(dev, slave_dev,
-				  "Slave has XDP program loaded, please unload before enslaving\n");
+			SLAVE_NL_ERR(dev, slave_dev, extack,
+				     "Slave has XDP program loaded, please unload before enslaving");
 			err = -EOPNOTSUPP;
 			goto err;
 		}

include/net/bonding.h

@@ -150,11 +150,6 @@ struct bond_params {
 	u8 ad_actor_system[ETH_ALEN + 2];
 };
 
-struct bond_parm_tbl {
-	char *modename;
-	int mode;
-};
-
 struct slave {
 	struct net_device *dev; /* first - useful for panic debug */
 	struct bonding *bond; /* our master */
@@ -755,13 +750,6 @@ static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
 
 /* exported from bond_main.c */
 extern unsigned int bond_net_id;
-extern const struct bond_parm_tbl bond_lacp_tbl[];
-extern const struct bond_parm_tbl xmit_hashtype_tbl[];
-extern const struct bond_parm_tbl arp_validate_tbl[];
-extern const struct bond_parm_tbl arp_all_targets_tbl[];
-extern const struct bond_parm_tbl fail_over_mac_tbl[];
-extern const struct bond_parm_tbl pri_reselect_tbl[];
-extern struct bond_parm_tbl ad_select_tbl[];
 
 /* exported from bond_netlink.c */
 extern struct rtnl_link_ops bond_link_ops;