net: dsa: move headers exported by slave.c to slave.h

Minimize the use of the bloated dsa_priv.h by moving the prototypes
exported by slave.c to their own header file.

This is just approximate to get the code structure right. There are some
interdependencies with static inline code left in dsa_priv.h, so leave
slave.h included from there for now.
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/dsa.c

@@ -14,6 +14,7 @@
 #include <net/dst_metadata.h>
 
 #include "dsa_priv.h"
+#include "slave.h"
 
 static LIST_HEAD(dsa_tag_drivers_list);
 static DEFINE_MUTEX(dsa_tag_drivers_lock);

net/dsa/dsa2.c

@@ -21,6 +21,7 @@
 #include "dsa_priv.h"
 #include "master.h"
 #include "port.h"
+#include "slave.h"
 
 static DEFINE_MUTEX(dsa2_mutex);
 LIST_HEAD(dsa_tree_list);

net/dsa/dsa_priv.h

@@ -7,13 +7,11 @@
 #ifndef __DSA_PRIV_H
 #define __DSA_PRIV_H
 
-#include <linux/if_bridge.h>
-#include <linux/if_vlan.h>
 #include <linux/phy.h>
 #include <linux/netdevice.h>
-#include <linux/netpoll.h>
 #include <net/dsa.h>
-#include <net/gro_cells.h>
+
+#include "slave.h"
 
 #define DSA_MAX_NUM_OFFLOADING_BRIDGES		BITS_PER_LONG
 
@@ -224,24 +222,6 @@ struct dsa_standalone_event_work {
 	u16 vid;
 };
 
-struct dsa_slave_priv {
-	/* Copy of CPU port xmit for faster access in slave transmit hot path */
-	struct sk_buff *	(*xmit)(struct sk_buff *skb,
-					struct net_device *dev);
-
-	struct gro_cells	gcells;
-
-	/* DSA port data, such as switch, port index, etc. */
-	struct dsa_port		*dp;
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	struct netpoll		*netpoll;
-#endif
-
-	/* TC context */
-	struct list_head	mall_tc_list;
-};
-
 /* dsa.c */
 const struct dsa_device_ops *dsa_tag_driver_get_by_id(int tag_protocol);
 const struct dsa_device_ops *dsa_tag_driver_get_by_name(const char *name);
@@ -277,41 +257,6 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
 /* netlink.c */
 extern struct rtnl_link_ops dsa_link_ops __read_mostly;
 
-/* slave.c */
-extern struct notifier_block dsa_slave_switchdev_notifier;
-extern struct notifier_block dsa_slave_switchdev_blocking_notifier;
-
-void dsa_slave_mii_bus_init(struct dsa_switch *ds);
-int dsa_slave_create(struct dsa_port *dp);
-void dsa_slave_destroy(struct net_device *slave_dev);
-int dsa_slave_suspend(struct net_device *slave_dev);
-int dsa_slave_resume(struct net_device *slave_dev);
-int dsa_slave_register_notifier(void);
-void dsa_slave_unregister_notifier(void);
-void dsa_slave_sync_ha(struct net_device *dev);
-void dsa_slave_unsync_ha(struct net_device *dev);
-void dsa_slave_setup_tagger(struct net_device *slave);
-int dsa_slave_change_mtu(struct net_device *dev, int new_mtu);
-int dsa_slave_change_master(struct net_device *dev, struct net_device *master,
-			    struct netlink_ext_ack *extack);
-int dsa_slave_manage_vlan_filtering(struct net_device *dev,
-				    bool vlan_filtering);
-
-static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
-{
-	struct dsa_slave_priv *p = netdev_priv(dev);
-
-	return p->dp;
-}
-
-static inline struct net_device *
-dsa_slave_to_master(const struct net_device *dev)
-{
-	struct dsa_port *dp = dsa_slave_to_port(dev);
-
-	return dsa_port_to_master(dp);
-}
-
 /* If under a bridge with vlan_filtering=0, make sure to send pvid-tagged
  * frames as untagged, since the bridge will not untag them.
  */

net/dsa/netlink.c

@@ -5,6 +5,7 @@
 #include <net/rtnetlink.h>
 
 #include "dsa_priv.h"
+#include "slave.h"
 
 static const struct nla_policy dsa_policy[IFLA_DSA_MAX + 1] = {
 	[IFLA_DSA_MASTER]	= { .type = NLA_U32 },

net/dsa/port.c

@@ -14,6 +14,7 @@
 
 #include "dsa_priv.h"
 #include "port.h"
+#include "slave.h"
 
 /**
  * dsa_port_notify - Notify the switching fabric of changes to a port

net/dsa/slave.c

@@ -25,6 +25,7 @@
 #include "dsa_priv.h"
 #include "port.h"
 #include "master.h"
+#include "slave.h"
 
 static void dsa_slave_standalone_event_work(struct work_struct *work)
 {

net/dsa/slave.h

+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef __DSA_SLAVE_H
+#define __DSA_SLAVE_H
+
+#include <linux/if_bridge.h>
+#include <linux/if_vlan.h>
+#include <linux/list.h>
+#include <linux/netpoll.h>
+#include <linux/types.h>
+#include <net/dsa.h>
+#include <net/gro_cells.h>
+
+struct net_device;
+struct netlink_ext_ack;
+
+extern struct notifier_block dsa_slave_switchdev_notifier;
+extern struct notifier_block dsa_slave_switchdev_blocking_notifier;
+
+struct dsa_slave_priv {
+	/* Copy of CPU port xmit for faster access in slave transmit hot path */
+	struct sk_buff *	(*xmit)(struct sk_buff *skb,
+					struct net_device *dev);
+
+	struct gro_cells	gcells;
+
+	/* DSA port data, such as switch, port index, etc. */
+	struct dsa_port		*dp;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	struct netpoll		*netpoll;
+#endif
+
+	/* TC context */
+	struct list_head	mall_tc_list;
+};
+
+void dsa_slave_mii_bus_init(struct dsa_switch *ds);
+int dsa_slave_create(struct dsa_port *dp);
+void dsa_slave_destroy(struct net_device *slave_dev);
+int dsa_slave_suspend(struct net_device *slave_dev);
+int dsa_slave_resume(struct net_device *slave_dev);
+int dsa_slave_register_notifier(void);
+void dsa_slave_unregister_notifier(void);
+void dsa_slave_sync_ha(struct net_device *dev);
+void dsa_slave_unsync_ha(struct net_device *dev);
+void dsa_slave_setup_tagger(struct net_device *slave);
+int dsa_slave_change_mtu(struct net_device *dev, int new_mtu);
+int dsa_slave_change_master(struct net_device *dev, struct net_device *master,
+			    struct netlink_ext_ack *extack);
+int dsa_slave_manage_vlan_filtering(struct net_device *dev,
+				    bool vlan_filtering);
+
+static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
+{
+	struct dsa_slave_priv *p = netdev_priv(dev);
+
+	return p->dp;
+}
+
+static inline struct net_device *
+dsa_slave_to_master(const struct net_device *dev)
+{
+	struct dsa_port *dp = dsa_slave_to_port(dev);
+
+	return dsa_port_to_master(dp);
+}
+
+#endif

net/dsa/switch.c

@@ -14,6 +14,7 @@
 
 #include "dsa_priv.h"
 #include "port.h"
+#include "slave.h"
 
 static unsigned int dsa_switch_fastest_ageing_time(struct dsa_switch *ds,
 						   unsigned int ageing_time)