diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2019-04-28 19:37:16 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-28 19:41:01 -0400 |
| commit | bdc6fe5bb1d1c245fc8eec6f83c77ca31fda7778 (patch) | |
| tree | 0c7152ff7335f65b9a6264d487f0183befa51cd4 | |
| parent | d3b8c04988ca1685700e345a82a1396df79e6291 (diff) | |
dsa: Keep link list of tag drivers
Let the tag drivers register themselves with the DSA core, keeping
them in a linked list.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
v2
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/dsa.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 34becafbd37b..32778df1be27 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -27,6 +27,9 @@ #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, 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, }; +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[], 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); void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 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); |