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add patch for generating hotplug events on atm device create

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@2532 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-11-19 14:07:05 +00:00
parent c40541ffc8
commit d71b83343a
1 changed files with 98 additions and 0 deletions
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98
openwrt/target/linux/linux-2.4/patches/generic/224-atm_hotplug.patch Normal file
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@ -0,0 +1,98 @@
diff -urN linux.old/include/linux/atmdev.h linux.dev/include/linux/atmdev.h
--- linux.old/include/linux/atmdev.h 2005-11-17 12:51:55.883585000 +0100
+++ linux.dev/include/linux/atmdev.h 2005-11-17 13:49:22.012671000 +0100
@@ -408,6 +408,7 @@
struct atm_dev *atm_dev_register(const char *type,const struct atmdev_ops *ops,
int number,atm_dev_flags_t *flags); /* number == -1: pick first available */
struct atm_dev *atm_dev_lookup(int number);
+void atm_dev_set_link_status(struct atm_dev *dev, int status);
void atm_dev_deregister(struct atm_dev *dev);
void shutdown_atm_dev(struct atm_dev *dev);
void vcc_insert_socket(struct sock *sk);
diff -urN linux.old/net/atm/resources.c linux.dev/net/atm/resources.c
--- linux.old/net/atm/resources.c 2003-11-28 19:26:21.000000000 +0100
+++ linux.dev/net/atm/resources.c 2005-11-17 14:27:26.514267750 +0100
@@ -10,6 +10,7 @@
#include <linux/sonet.h>
#include <linux/kernel.h> /* for barrier */
#include <linux/module.h>
+#include <linux/kmod.h>
#include <linux/bitops.h>
#include <net/sock.h> /* for struct sock */
#include <asm/segment.h> /* for get_fs_long and put_fs_long */
@@ -70,6 +71,44 @@
return dev;
}
+#ifdef CONFIG_HOTPLUG
+static void atm_run_sbin_hotplug(struct atm_dev *dev, char *action)
+{
+ char *argv[3], *envp[5], ifname[12 + IFNAMSIZ], atmname[255], action_str[32];
+ int i;
+
+ sprintf(ifname, "INTERFACE=atm%d", dev->number);
+ sprintf(atmname, "ATMDRIVER=%s", dev->type);
+ sprintf(action_str, "ACTION=%s", action);
+
+ i = 0;
+ argv[i++] = hotplug_path;
+ argv[i++] = "net";
+ argv[i] = 0;
+
+ i = 0;
+ /* minimal command environment */
+ envp [i++] = "HOME=/";
+ envp [i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+ envp [i++] = ifname;
+ envp [i++] = atmname;
+ envp [i++] = action_str;
+ envp [i] = 0;
+
+ return call_usermodehelper(argv [0], argv, envp);
+}
+#endif
+
+void atm_dev_set_link_status(struct atm_dev *dev, int status)
+{
+#ifdef CONFIG_HOTPLUG
+ if (status)
+ atm_run_sbin_hotplug(dev, "up");
+ else
+ atm_run_sbin_hotplug(dev, "down");
+#endif
+}
+
struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
int number, atm_dev_flags_t *flags)
{
@@ -123,7 +162,10 @@
}
}
#endif
-
+#ifdef CONFIG_HOTPLUG
+ atm_run_sbin_hotplug(dev, "register");
+#endif
+
return dev;
}
@@ -131,6 +173,10 @@
void atm_dev_deregister(struct atm_dev *dev)
{
unsigned long warning_time;
+
+#ifdef CONFIG_HOTPLUG
+ atm_run_sbin_hotplug(dev, "unregister");
+#endif
#ifdef CONFIG_PROC_FS
if (dev->ops->proc_read)
@@ -399,6 +445,7 @@
}
+EXPORT_SYMBOL(atm_dev_set_link_status);
EXPORT_SYMBOL(atm_dev_register);
EXPORT_SYMBOL(atm_dev_deregister);
EXPORT_SYMBOL(atm_dev_lookup);