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Diffstat (limited to 'net')
-rw-r--r--net/bridge/br.c3
-rw-r--r--net/switchdev/switchdev.c15
2 files changed, 9 insertions, 9 deletions
diff --git a/net/bridge/br.c b/net/bridge/br.c
index a1abe4936fe1..3addc05b9a16 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -121,6 +121,7 @@ static struct notifier_block br_device_notifier = {
.notifier_call = br_device_event
};
+/* called with RTNL */
static int br_switchdev_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
@@ -130,7 +131,6 @@ static int br_switchdev_event(struct notifier_block *unused,
struct switchdev_notifier_fdb_info *fdb_info;
int err = NOTIFY_DONE;
- rtnl_lock();
p = br_port_get_rtnl(dev);
if (!p)
goto out;
@@ -155,7 +155,6 @@ static int br_switchdev_event(struct notifier_block *unused,
}
out:
- rtnl_unlock();
return err;
}
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index ebc661d3b6e3..47f7da58a7f0 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -20,6 +20,7 @@
#include <linux/list.h>
#include <linux/workqueue.h>
#include <linux/if_vlan.h>
+#include <linux/rtnetlink.h>
#include <net/ip_fib.h>
#include <net/switchdev.h>
@@ -567,7 +568,6 @@ int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
}
EXPORT_SYMBOL_GPL(switchdev_port_obj_dump);
-static DEFINE_MUTEX(switchdev_mutex);
static RAW_NOTIFIER_HEAD(switchdev_notif_chain);
/**
@@ -582,9 +582,9 @@ int register_switchdev_notifier(struct notifier_block *nb)
{
int err;
- mutex_lock(&switchdev_mutex);
+ rtnl_lock();
err = raw_notifier_chain_register(&switchdev_notif_chain, nb);
- mutex_unlock(&switchdev_mutex);
+ rtnl_unlock();
return err;
}
EXPORT_SYMBOL_GPL(register_switchdev_notifier);
@@ -600,9 +600,9 @@ int unregister_switchdev_notifier(struct notifier_block *nb)
{
int err;
- mutex_lock(&switchdev_mutex);
+ rtnl_lock();
err = raw_notifier_chain_unregister(&switchdev_notif_chain, nb);
- mutex_unlock(&switchdev_mutex);
+ rtnl_unlock();
return err;
}
EXPORT_SYMBOL_GPL(unregister_switchdev_notifier);
@@ -616,16 +616,17 @@ EXPORT_SYMBOL_GPL(unregister_switchdev_notifier);
* Call all network notifier blocks. This should be called by driver
* when it needs to propagate hardware event.
* Return values are same as for atomic_notifier_call_chain().
+ * rtnl_lock must be held.
*/
int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
struct switchdev_notifier_info *info)
{
int err;
+ ASSERT_RTNL();
+
info->dev = dev;
- mutex_lock(&switchdev_mutex);
err = raw_notifier_call_chain(&switchdev_notif_chain, val, info);
- mutex_unlock(&switchdev_mutex);
return err;
}
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);