mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-09-21 20:22:13 +08:00
bridge: make br_device_notifier static
Merge net/bridge/br_notify.c into net/bridge/br.c, since it has only br_device_event() and br.c is small. Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cong Wang
David S. Miller
parent
5c4a43b024
commit
b1282726d5
@ -5,7 +5,7 @@
|
||||
obj-$(CONFIG_BRIDGE) += bridge.o
|
||||
|
||||
bridge-y := br.o br_device.o br_fdb.o br_forward.o br_if.o br_input.o \
|
||||
br_ioctl.o br_notify.o br_stp.o br_stp_bpdu.o \
|
||||
br_ioctl.o br_stp.o br_stp_bpdu.o \
|
||||
br_stp_if.o br_stp_timer.o br_netlink.o
|
||||
|
||||
bridge-$(CONFIG_SYSFS) += br_sysfs_if.o br_sysfs_br.o
|
||||
|
||||
@ -22,6 +22,104 @@
|
||||
|
||||
#include "br_private.h"
|
||||
|
||||
/*
|
||||
* 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 = netdev_notifier_info_to_dev(ptr);
|
||||
struct net_bridge_port *p;
|
||||
struct net_bridge *br;
|
||||
bool changed_addr;
|
||||
int err;
|
||||
|
||||
/* register of bridge completed, add sysfs entries */
|
||||
if ((dev->priv_flags & IFF_EBRIDGE) && event == NETDEV_REGISTER) {
|
||||
br_sysfs_addbr(dev);
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
/* not a port of a bridge */
|
||||
p = br_port_get_rtnl(dev);
|
||||
if (!p)
|
||||
return NOTIFY_DONE;
|
||||
|
||||
br = p->br;
|
||||
|
||||
switch (event) {
|
||||
case NETDEV_CHANGEMTU:
|
||||
dev_set_mtu(br->dev, br_min_mtu(br));
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGEADDR:
|
||||
spin_lock_bh(&br->lock);
|
||||
br_fdb_changeaddr(p, dev->dev_addr);
|
||||
changed_addr = br_stp_recalculate_bridge_id(br);
|
||||
spin_unlock_bh(&br->lock);
|
||||
|
||||
if (changed_addr)
|
||||
call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);
|
||||
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGE:
|
||||
br_port_carrier_check(p);
|
||||
break;
|
||||
|
||||
case NETDEV_FEAT_CHANGE:
|
||||
netdev_update_features(br->dev);
|
||||
break;
|
||||
|
||||
case NETDEV_DOWN:
|
||||
spin_lock_bh(&br->lock);
|
||||
if (br->dev->flags & IFF_UP)
|
||||
br_stp_disable_port(p);
|
||||
spin_unlock_bh(&br->lock);
|
||||
break;
|
||||
|
||||
case NETDEV_UP:
|
||||
if (netif_running(br->dev) && netif_oper_up(dev)) {
|
||||
spin_lock_bh(&br->lock);
|
||||
br_stp_enable_port(p);
|
||||
spin_unlock_bh(&br->lock);
|
||||
}
|
||||
break;
|
||||
|
||||
case NETDEV_UNREGISTER:
|
||||
br_del_if(br, dev);
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGENAME:
|
||||
err = br_sysfs_renameif(p);
|
||||
if (err)
|
||||
return notifier_from_errno(err);
|
||||
break;
|
||||
|
||||
case NETDEV_PRE_TYPE_CHANGE:
|
||||
/* Forbid underlaying device to change its type. */
|
||||
return NOTIFY_BAD;
|
||||
|
||||
case NETDEV_RESEND_IGMP:
|
||||
/* Propagate to master device */
|
||||
call_netdevice_notifiers(event, br->dev);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Events that may cause spanning tree to refresh */
|
||||
if (event == NETDEV_CHANGEADDR || event == NETDEV_UP ||
|
||||
event == NETDEV_CHANGE || event == NETDEV_DOWN)
|
||||
br_ifinfo_notify(RTM_NEWLINK, p);
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static struct notifier_block br_device_notifier = {
|
||||
.notifier_call = br_device_event
|
||||
};
|
||||
|
||||
static void __net_exit br_net_exit(struct net *net)
|
||||
{
|
||||
struct net_device *dev;
|
||||
|
||||
@ -1,118 +0,0 @@
|
||||
/*
|
||||
* Device event handling
|
||||
* Linux ethernet bridge
|
||||
*
|
||||
* Authors:
|
||||
* Lennert Buytenhek <buytenh@gnu.org>
|
||||
*
|
||||
* 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 <linux/rtnetlink.h>
|
||||
#include <net/net_namespace.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 = netdev_notifier_info_to_dev(ptr);
|
||||
struct net_bridge_port *p;
|
||||
struct net_bridge *br;
|
||||
bool changed_addr;
|
||||
int err;
|
||||
|
||||
/* register of bridge completed, add sysfs entries */
|
||||
if ((dev->priv_flags & IFF_EBRIDGE) && event == NETDEV_REGISTER) {
|
||||
br_sysfs_addbr(dev);
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
/* not a port of a bridge */
|
||||
p = br_port_get_rtnl(dev);
|
||||
if (!p)
|
||||
return NOTIFY_DONE;
|
||||
|
||||
br = p->br;
|
||||
|
||||
switch (event) {
|
||||
case NETDEV_CHANGEMTU:
|
||||
dev_set_mtu(br->dev, br_min_mtu(br));
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGEADDR:
|
||||
spin_lock_bh(&br->lock);
|
||||
br_fdb_changeaddr(p, dev->dev_addr);
|
||||
changed_addr = br_stp_recalculate_bridge_id(br);
|
||||
spin_unlock_bh(&br->lock);
|
||||
|
||||
if (changed_addr)
|
||||
call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);
|
||||
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGE:
|
||||
br_port_carrier_check(p);
|
||||
break;
|
||||
|
||||
case NETDEV_FEAT_CHANGE:
|
||||
netdev_update_features(br->dev);
|
||||
break;
|
||||
|
||||
case NETDEV_DOWN:
|
||||
spin_lock_bh(&br->lock);
|
||||
if (br->dev->flags & IFF_UP)
|
||||
br_stp_disable_port(p);
|
||||
spin_unlock_bh(&br->lock);
|
||||
break;
|
||||
|
||||
case NETDEV_UP:
|
||||
if (netif_running(br->dev) && netif_oper_up(dev)) {
|
||||
spin_lock_bh(&br->lock);
|
||||
br_stp_enable_port(p);
|
||||
spin_unlock_bh(&br->lock);
|
||||
}
|
||||
break;
|
||||
|
||||
case NETDEV_UNREGISTER:
|
||||
br_del_if(br, dev);
|
||||
break;
|
||||
|
||||
case NETDEV_CHANGENAME:
|
||||
err = br_sysfs_renameif(p);
|
||||
if (err)
|
||||
return notifier_from_errno(err);
|
||||
break;
|
||||
|
||||
case NETDEV_PRE_TYPE_CHANGE:
|
||||
/* Forbid underlaying device to change its type. */
|
||||
return NOTIFY_BAD;
|
||||
|
||||
case NETDEV_RESEND_IGMP:
|
||||
/* Propagate to master device */
|
||||
call_netdevice_notifiers(event, br->dev);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Events that may cause spanning tree to refresh */
|
||||
if (event == NETDEV_CHANGEADDR || event == NETDEV_UP ||
|
||||
event == NETDEV_CHANGE || event == NETDEV_DOWN)
|
||||
br_ifinfo_notify(RTM_NEWLINK, p);
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
@ -333,8 +333,6 @@ struct br_input_skb_cb {
|
||||
#define br_debug(br, format, args...) \
|
||||
pr_debug("%s: " format, (br)->dev->name, ##args)
|
||||
|
||||
extern struct notifier_block br_device_notifier;
|
||||
|
||||
/* called under bridge lock */
|
||||
static inline int br_is_root_bridge(const struct net_bridge *br)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user