dsa: Keep link list of tag drivers (bdc6fe5b) · Commits · 戴 / test

net/dsa/dsa.c

+28 −0

Original line number	Original line	Diff line number	Diff line
	@@ -27,6 +27,9 @@

	#include "dsa_priv.h"		#include "dsa_priv.h"

			static LIST_HEAD(dsa_tag_drivers_list);
			static DEFINE_MUTEX(dsa_tag_drivers_lock);

	static struct sk_buff dsa_slave_notag_xmit(struct sk_buff skb,		static struct sk_buff dsa_slave_notag_xmit(struct sk_buff skb,
	struct net_device *dev)		struct net_device *dev)
	{		{
	@@ -76,15 +79,40 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
	[DSA_TAG_PROTO_NONE] = &none_ops,		[DSA_TAG_PROTO_NONE] = &none_ops,
	};		};

			static void dsa_tag_driver_register(struct dsa_tag_driver *dsa_tag_driver,
			struct module *owner)
			{
			dsa_tag_driver->owner = owner;

			mutex_lock(&dsa_tag_drivers_lock);
			list_add_tail(&dsa_tag_driver->list, &dsa_tag_drivers_list);
			mutex_unlock(&dsa_tag_drivers_lock);
			}

	void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],		void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
	unsigned int count, struct module *owner)		unsigned int count, struct module *owner)
	{		{
			unsigned int i;

			for (i = 0; i < count; i++)
			dsa_tag_driver_register(dsa_tag_driver_array[i], owner);
			}

			static void dsa_tag_driver_unregister(struct dsa_tag_driver *dsa_tag_driver)
			{
			mutex_lock(&dsa_tag_drivers_lock);
			list_del(&dsa_tag_driver->list);
			mutex_unlock(&dsa_tag_drivers_lock);
	}		}
	EXPORT_SYMBOL_GPL(dsa_tag_drivers_register);		EXPORT_SYMBOL_GPL(dsa_tag_drivers_register);

	void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],		void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
	unsigned int count)		unsigned int count)
	{		{
			unsigned int i;

			for (i = 0; i < count; i++)
			dsa_tag_driver_unregister(dsa_tag_driver_array[i]);
	}		}
	EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister);		EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister);

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