diff mbox series

[RFC,net-next,06/13] net: core: dev_addr_lists: export some raw __hw_addr helpers

Message ID 20200521211036.668624-7-olteanv@gmail.com
State RFC
Delegated to: David Miller
Headers show
Series RX filtering for DSA switches | expand

Commit Message

Vladimir Oltean May 21, 2020, 9:10 p.m. UTC 
From: Vladimir Oltean <vladimir.oltean@nxp.com>

DSA switches need to keep the list of addresses which are filtered
towards the CPU port. One DSA switch can have 1 CPU port and many
front-panel (user) ports, each user port having its own MAC address
(they can potentially be all the same MAC address). Filtering towards
the CPU port means adding a FDB address for each user port MAC address
that sends that address to the CPU. There is no net_device associated
with the CPU port. So the DSA switches need to keep their own reference
counting of MAC addresses for which a FDB entry is installed or removed
on the CPU port. Permit that by exporting the raw helpers instead of
operating on a struct net_device.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 include/linux/netdevice.h |  7 +++++++
 net/core/dev_addr_lists.c | 17 ++++++++++-------
 2 files changed, 17 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2d11b93f3af4..239efd209c33 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4307,6 +4307,13 @@  void __hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
 			  int (*unsync)(struct net_device *,
 					const unsigned char *));
 void __hw_addr_init(struct netdev_hw_addr_list *list);
+void __hw_addr_flush(struct netdev_hw_addr_list *list);
+int __hw_addr_add(struct netdev_hw_addr_list *list,
+		  const unsigned char *addr, int addr_len,
+		  unsigned char addr_type);
+int __hw_addr_del(struct netdev_hw_addr_list *list,
+		  const unsigned char *addr, int addr_len,
+		  unsigned char addr_type);
 
 /* Functions used for device addresses handling */
 int dev_addr_add(struct net_device *dev, const unsigned char *addr,
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 90eaa99b19e5..e307ae7d2a44 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -77,13 +77,14 @@  static int __hw_addr_add_ex(struct netdev_hw_addr_list *list,
 				   sync);
 }
 
-static int __hw_addr_add(struct netdev_hw_addr_list *list,
-			 const unsigned char *addr, int addr_len,
-			 unsigned char addr_type)
+int __hw_addr_add(struct netdev_hw_addr_list *list,
+		  const unsigned char *addr, int addr_len,
+		  unsigned char addr_type)
 {
 	return __hw_addr_add_ex(list, addr, addr_len, addr_type, false, false,
 				0);
 }
+EXPORT_SYMBOL(__hw_addr_add);
 
 static int __hw_addr_del_entry(struct netdev_hw_addr_list *list,
 			       struct netdev_hw_addr *ha, bool global,
@@ -123,12 +124,13 @@  static int __hw_addr_del_ex(struct netdev_hw_addr_list *list,
 	return -ENOENT;
 }
 
-static int __hw_addr_del(struct netdev_hw_addr_list *list,
-			 const unsigned char *addr, int addr_len,
-			 unsigned char addr_type)
+int __hw_addr_del(struct netdev_hw_addr_list *list,
+		  const unsigned char *addr, int addr_len,
+		  unsigned char addr_type)
 {
 	return __hw_addr_del_ex(list, addr, addr_len, addr_type, false, false);
 }
+EXPORT_SYMBOL(__hw_addr_del);
 
 static int __hw_addr_sync_one(struct netdev_hw_addr_list *to_list,
 			       struct netdev_hw_addr *ha,
@@ -403,7 +405,7 @@  void __hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
 }
 EXPORT_SYMBOL(__hw_addr_unsync_dev);
 
-static void __hw_addr_flush(struct netdev_hw_addr_list *list)
+void __hw_addr_flush(struct netdev_hw_addr_list *list)
 {
 	struct netdev_hw_addr *ha, *tmp;
 
@@ -413,6 +415,7 @@  static void __hw_addr_flush(struct netdev_hw_addr_list *list)
 	}
 	list->count = 0;
 }
+EXPORT_SYMBOL(__hw_addr_flush);
 
 void __hw_addr_init(struct netdev_hw_addr_list *list)
 {