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--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -29,7 +29,8 @@ 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 */
@@ -42,6 +43,18 @@ 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
*
@@ -194,9 +207,7 @@ int kobject_uevent_env(struct kobject *k
kobj->state_remove_uevent_sent = 1;
/* 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;
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