--- /dev/null
+From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 16 Jul 2017 16:56:10 +0200
+Subject: lib: add uevent_next_seqnum()
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ include/linux/kobject.h | 5 +++++
+ lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++
+ 2 files changed, 42 insertions(+)
+
+--- a/lib/kobject_uevent.c
++++ b/lib/kobject_uevent.c
+@@ -179,6 +179,18 @@ out:
+ return r;
+ }
+
++u64 uevent_next_seqnum(void)
++{
++ u64 seq;
++
++ mutex_lock(&uevent_sock_mutex);
++ seq = ++uevent_seqnum;
++ mutex_unlock(&uevent_sock_mutex);
++
++ return seq;
++}
++EXPORT_SYMBOL_GPL(uevent_next_seqnum);
++
+ /**
+ * kobject_synth_uevent - send synthetic uevent with arguments
+ *