From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/net/hsr/hsr_main.c | 51 +++++++++++++++++++++++++++++++++++++--------------
1 files changed, 37 insertions(+), 14 deletions(-)
diff --git a/kernel/net/hsr/hsr_main.c b/kernel/net/hsr/hsr_main.c
index cd37d00..2fd1976 100644
--- a/kernel/net/hsr/hsr_main.c
+++ b/kernel/net/hsr/hsr_main.c
@@ -1,15 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
/* Copyright 2011-2014 Autronica Fire and Security AS
- *
- * 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.
*
* Author(s):
* 2011-2014 Arvid Brodin, arvid.brodin@alten.se
+ *
+ * Event handling for HSR and PRP devices.
*/
#include <linux/netdevice.h>
+#include <net/rtnetlink.h>
#include <linux/rculist.h>
#include <linux/timer.h>
#include <linux/etherdevice.h>
@@ -19,24 +18,34 @@
#include "hsr_framereg.h"
#include "hsr_slave.h"
+static bool hsr_slave_empty(struct hsr_priv *hsr)
+{
+ struct hsr_port *port;
+
+ hsr_for_each_port(hsr, port)
+ if (port->type != HSR_PT_MASTER)
+ return false;
+ return true;
+}
static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
void *ptr)
{
- struct net_device *dev;
struct hsr_port *port, *master;
+ struct net_device *dev;
struct hsr_priv *hsr;
+ LIST_HEAD(list_kill);
int mtu_max;
int res;
dev = netdev_notifier_info_to_dev(ptr);
port = hsr_port_get_rtnl(dev);
- if (port == NULL) {
+ if (!port) {
if (!is_hsr_master(dev))
return NOTIFY_DONE; /* Not an HSR device */
hsr = netdev_priv(dev);
port = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
- if (port == NULL) {
+ if (!port) {
/* Resend of notification concerning removed device? */
return NOTIFY_DONE;
}
@@ -49,6 +58,10 @@
case NETDEV_DOWN: /* Administrative state UP */
case NETDEV_CHANGE: /* Link (carrier) state changes */
hsr_check_carrier_and_operstate(hsr);
+ break;
+ case NETDEV_CHANGENAME:
+ if (is_hsr_master(dev))
+ hsr_debugfs_rename(dev);
break;
case NETDEV_CHANGEADDR:
if (port->type == HSR_PT_MASTER) {
@@ -63,12 +76,13 @@
if (port->type == HSR_PT_SLAVE_A) {
ether_addr_copy(master->dev->dev_addr, dev->dev_addr);
- call_netdevice_notifiers(NETDEV_CHANGEADDR, master->dev);
+ call_netdevice_notifiers(NETDEV_CHANGEADDR,
+ master->dev);
}
/* Make sure we recognize frames from ourselves in hsr_rcv() */
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
- res = hsr_create_self_node(&hsr->self_node_db,
+ res = hsr_create_self_node(hsr,
master->dev->dev_addr,
port ?
port->dev->dev_addr :
@@ -85,7 +99,17 @@
master->dev->mtu = mtu_max;
break;
case NETDEV_UNREGISTER:
- hsr_del_port(port);
+ if (!is_hsr_master(dev)) {
+ master = hsr_port_get_hsr(port->hsr, HSR_PT_MASTER);
+ hsr_del_port(port);
+ if (hsr_slave_empty(master->hsr)) {
+ const struct rtnl_link_ops *ops;
+
+ ops = master->dev->rtnl_link_ops;
+ ops->dellink(master->dev, &list_kill);
+ unregister_netdevice_many(&list_kill);
+ }
+ }
break;
case NETDEV_PRE_TYPE_CHANGE:
/* HSR works only on Ethernet devices. Refuse slave to change
@@ -96,7 +120,6 @@
return NOTIFY_DONE;
}
-
struct hsr_port *hsr_port_get_hsr(struct hsr_priv *hsr, enum hsr_port_type pt)
{
@@ -112,7 +135,6 @@
.notifier_call = hsr_netdev_notify, /* Slave event notifications */
};
-
static int __init hsr_init(void)
{
int res;
@@ -127,8 +149,9 @@
static void __exit hsr_exit(void)
{
- unregister_netdevice_notifier(&hsr_nb);
hsr_netlink_exit();
+ hsr_debugfs_remove_root();
+ unregister_netdevice_notifier(&hsr_nb);
}
module_init(hsr_init);
--
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