net: dsa: rename dsa2.c back into dsa.c and create its header

The previous change moved the code into the larger file (dsa2.c) to
minimize the delta. Rename that now to dsa.c, and create dsa.h, where
all related definitions from dsa_priv.h go.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/dsa/Makefile

@@ -3,7 +3,7 @@
 obj-$(CONFIG_NET_DSA) += dsa_core.o
 dsa_core-y += \
 	devlink.o \
-	dsa2.o \
+	dsa.o \
 	master.o \
 	netlink.o \
 	port.o \

net/dsa/dsa.c

@@ -20,6 +20,7 @@
 #include <net/sch_generic.h>
 
 #include "devlink.h"
+#include "dsa.h"
 #include "dsa_priv.h"
 #include "master.h"
 #include "port.h"

net/dsa/dsa.h

@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef __DSA_H
+#define __DSA_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+
+struct dsa_db;
+struct dsa_device_ops;
+struct dsa_lag;
+struct dsa_switch_tree;
+struct net_device;
+struct work_struct;
+
+extern struct list_head dsa_tree_list;
+
+bool dsa_db_equal(const struct dsa_db *a, const struct dsa_db *b);
+bool dsa_schedule_work(struct work_struct *work);
+void dsa_lag_map(struct dsa_switch_tree *dst, struct dsa_lag *lag);
+void dsa_lag_unmap(struct dsa_switch_tree *dst, struct dsa_lag *lag);
+struct dsa_lag *dsa_tree_lag_find(struct dsa_switch_tree *dst,
+				  const struct net_device *lag_dev);
+struct net_device *dsa_tree_find_first_master(struct dsa_switch_tree *dst);
+int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
+			      const struct dsa_device_ops *tag_ops,
+			      const struct dsa_device_ops *old_tag_ops);
+void dsa_tree_master_admin_state_change(struct dsa_switch_tree *dst,
+					struct net_device *master,
+					bool up);
+void dsa_tree_master_oper_state_change(struct dsa_switch_tree *dst,
+				       struct net_device *master,
+				       bool up);
+unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max);
+void dsa_bridge_num_put(const struct net_device *bridge_dev,
+			unsigned int bridge_num);
+struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst,
+					const struct net_device *br);
+
+#endif

net/dsa/dsa_priv.h

@@ -43,11 +43,6 @@ struct dsa_standalone_event_work {
 	u16 vid;
 };
 
-/* dsa.c */
-bool dsa_db_equal(const struct dsa_db *a, const struct dsa_db *b);
-
-bool dsa_schedule_work(struct work_struct *work);
-
 /* netlink.c */
 extern struct rtnl_link_ops dsa_link_ops __read_mostly;
 
@@ -65,33 +60,10 @@ static inline bool dsa_switch_supports_mc_filtering(struct dsa_switch *ds)
 	       !ds->needs_standalone_vlan_filtering;
 }
 
-/* dsa2.c */
-void dsa_lag_map(struct dsa_switch_tree *dst, struct dsa_lag *lag);
-void dsa_lag_unmap(struct dsa_switch_tree *dst, struct dsa_lag *lag);
-struct dsa_lag *dsa_tree_lag_find(struct dsa_switch_tree *dst,
-				  const struct net_device *lag_dev);
-struct net_device *dsa_tree_find_first_master(struct dsa_switch_tree *dst);
-int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
-			      const struct dsa_device_ops *tag_ops,
-			      const struct dsa_device_ops *old_tag_ops);
-void dsa_tree_master_admin_state_change(struct dsa_switch_tree *dst,
-					struct net_device *master,
-					bool up);
-void dsa_tree_master_oper_state_change(struct dsa_switch_tree *dst,
-				       struct net_device *master,
-				       bool up);
-unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max);
-void dsa_bridge_num_put(const struct net_device *bridge_dev,
-			unsigned int bridge_num);
-struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst,
-					const struct net_device *br);
-
 /* tag_8021q.c */
 int dsa_switch_tag_8021q_vlan_add(struct dsa_switch *ds,
 				  struct dsa_notifier_tag_8021q_vlan_info *info);
 int dsa_switch_tag_8021q_vlan_del(struct dsa_switch *ds,
 				  struct dsa_notifier_tag_8021q_vlan_info *info);
 
-extern struct list_head dsa_tree_list;
-
 #endif

net/dsa/master.c

@@ -11,7 +11,7 @@
 #include <linux/netlink.h>
 #include <net/dsa.h>
 
-#include "dsa_priv.h"
+#include "dsa.h"
 #include "master.h"
 #include "port.h"
 #include "tag.h"

net/dsa/port.c

@@ -12,7 +12,7 @@
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
 
-#include "dsa_priv.h"
+#include "dsa.h"
 #include "port.h"
 #include "slave.h"
 #include "switch.h"

net/dsa/slave.c

@@ -22,6 +22,7 @@
 #include <net/dcbnl.h>
 #include <linux/netpoll.h>
 
+#include "dsa.h"
 #include "dsa_priv.h"
 #include "port.h"
 #include "master.h"

net/dsa/switch.c

@@ -12,6 +12,7 @@
 #include <linux/if_vlan.h>
 #include <net/switchdev.h>
 
+#include "dsa.h"
 #include "dsa_priv.h"
 #include "port.h"
 #include "slave.h"