Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
new file mode 100644
index 0000000..f8fb49e
--- /dev/null
+++ b/net/bridge/br_notify.c
@@ -0,0 +1,87 @@
+/*
+ * Device event handling
+ * Linux ethernet bridge
+ *
+ * Authors:
+ * Lennert Buytenhek <buytenh@gnu.org>
+ *
+ * $Id: br_notify.c,v 1.2 2000/02/21 15:51:34 davem Exp $
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+
+#include "br_private.h"
+
+static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr);
+
+struct notifier_block br_device_notifier = {
+ .notifier_call = br_device_event
+};
+
+/*
+ * Handle changes in state of network devices enslaved to a bridge.
+ *
+ * Note: don't care about up/down if bridge itself is down, because
+ * port state is checked when bridge is brought up.
+ */
+static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
+{
+ struct net_device *dev = ptr;
+ struct net_bridge_port *p = dev->br_port;
+ struct net_bridge *br;
+
+ /* not a port of a bridge */
+ if (p == NULL)
+ return NOTIFY_DONE;
+
+ br = p->br;
+
+ spin_lock_bh(&br->lock);
+ switch (event) {
+ case NETDEV_CHANGEMTU:
+ dev_set_mtu(br->dev, br_min_mtu(br));
+ break;
+
+ case NETDEV_CHANGEADDR:
+ br_fdb_changeaddr(p, dev->dev_addr);
+ br_stp_recalculate_bridge_id(br);
+ break;
+
+ case NETDEV_CHANGE: /* device is up but carrier changed */
+ if (!(br->dev->flags & IFF_UP))
+ break;
+
+ if (netif_carrier_ok(dev)) {
+ if (p->state == BR_STATE_DISABLED)
+ br_stp_enable_port(p);
+ } else {
+ if (p->state != BR_STATE_DISABLED)
+ br_stp_disable_port(p);
+ }
+ break;
+
+ case NETDEV_DOWN:
+ if (br->dev->flags & IFF_UP)
+ br_stp_disable_port(p);
+ break;
+
+ case NETDEV_UP:
+ if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP))
+ br_stp_enable_port(p);
+ break;
+
+ case NETDEV_UNREGISTER:
+ spin_unlock_bh(&br->lock);
+ br_del_if(br, dev);
+ goto done;
+ }
+ spin_unlock_bh(&br->lock);
+
+ done:
+ return NOTIFY_DONE;
+}