devlink: Use switch-case instead of if-else

Make core more readable with switch-case for various port flavours.
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NParav Pandit <parav@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/devlink.c

@@ -510,32 +510,37 @@ static int devlink_nl_port_attrs_put(struct sk_buff *msg,
 		return 0;
 	if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour))
 		return -EMSGSIZE;
-	if (devlink_port->attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_PF) {
+	switch (devlink_port->attrs.flavour) {
+	case DEVLINK_PORT_FLAVOUR_PCI_PF:
 		if (nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER,
 				attrs->pci_pf.pf))
 			return -EMSGSIZE;
-	} else if (devlink_port->attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_VF) {
+		break;
+	case DEVLINK_PORT_FLAVOUR_PCI_VF:
 		if (nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER,
 				attrs->pci_vf.pf) ||
 		    nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER,
 				attrs->pci_vf.vf))
 			return -EMSGSIZE;
+		break;
+	case DEVLINK_PORT_FLAVOUR_PHYSICAL:
+	case DEVLINK_PORT_FLAVOUR_CPU:
+	case DEVLINK_PORT_FLAVOUR_DSA:
+		if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER,
+				attrs->phys.port_number))
+			return -EMSGSIZE;
+		if (!attrs->split)
+			return 0;
+		if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP,
+				attrs->phys.port_number))
+			return -EMSGSIZE;
+		if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER,
+				attrs->phys.split_subport_number))
+			return -EMSGSIZE;
+		break;
+	default:
+		break;
 	}
-	if (devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PHYSICAL &&
-	    devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU &&
-	    devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA)
-		return 0;
-	if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER,
-			attrs->phys.port_number))
-		return -EMSGSIZE;
-	if (!attrs->split)
-		return 0;
-	if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP,
-			attrs->phys.port_number))
-		return -EMSGSIZE;
-	if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER,
-			attrs->phys.split_subport_number))
-		return -EMSGSIZE;
 	return 0;
 }