openwrt/target/linux/generic-2.6/patches-2.6.24/213-kobject_uevent.patch

Index: linux-2.6.24.7/lib/kobject_uevent.c
===================================================================
--- linux-2.6.24.7.orig/lib/kobject_uevent.c
+++ linux-2.6.24.7/lib/kobject_uevent.c
@@ -27,7 +27,8 @@ u64 uevent_seqnum;
 char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
 static DEFINE_SPINLOCK(sequence_lock);
 #if defined(CONFIG_NET)
-static struct sock *uevent_sock;
+struct sock *uevent_sock = NULL;
+EXPORT_SYMBOL_GPL(uevent_sock);
 #endif
 
 /* the strings here must match the enum in include/linux/kobject.h */
@@ -40,6 +41,18 @@ static const char *kobject_actions[] = {
 	[KOBJ_OFFLINE] =	"offline",
 };
 
+u64 uevent_next_seqnum(void)
+{
+	u64 seq;
+
+	spin_lock(&sequence_lock);
+	seq = ++uevent_seqnum;
+	spin_unlock(&sequence_lock);
+	
+	return seq;
+}
+EXPORT_SYMBOL_GPL(uevent_next_seqnum);
+
 /**
  * kobject_action_type - translate action string to numeric type
  *
@@ -173,9 +186,7 @@ int kobject_uevent_env(struct kobject *k
 	}
 
 	/* we will send an event, so request a new sequence number */
-	spin_lock(&sequence_lock);
-	seq = ++uevent_seqnum;
-	spin_unlock(&sequence_lock);
+	seq = uevent_next_seqnum();
 	retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq);
 	if (retval)
 		goto exit;