diff --git a/target/linux/generic/hack-4.14/952-net-conntrack-events-support-multiple-registrant.patch b/target/linux/generic/hack-4.14/952-net-conntrack-events-support-multiple-registrant.patch
index a84cfdf802..ab4858335d 100644
--- a/target/linux/generic/hack-4.14/952-net-conntrack-events-support-multiple-registrant.patch
+++ b/target/linux/generic/hack-4.14/952-net-conntrack-events-support-multiple-registrant.patch
@@ -1,3 +1,25 @@
+From 42824d4b753f84ccf885eca602c5037338b546c8 Mon Sep 17 00:00:00 2001
+From: Zhi Chen <zhichen@codeaurora.org>
+Date: Tue, 13 Jan 2015 14:28:18 -0800
+Subject: [PATCH 3/3] net: conntrack events, support multiple registrant
+
+Merging this patch from kernel 3.4:
+This was supported by old (.28) kernel versions but removed
+because of it's overhead.
+But we need this feature for NA connection manager. Both ipv4
+and ipv6 modules needs to register themselves to ct events.
+
+Change-Id: Iebfb254590fb594f5baf232f849d1b7ae45ef757
+Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
+---
+ include/net/netfilter/nf_conntrack_ecache.h | 42 ++++++++++++++++++-
+ include/net/netns/conntrack.h               |  4 ++
+ net/netfilter/Kconfig                       |  8 ++++
+ net/netfilter/nf_conntrack_core.c           |  4 ++
+ net/netfilter/nf_conntrack_ecache.c         | 63 +++++++++++++++++++++++++++++
+ net/netfilter/nf_conntrack_netlink.c        | 17 ++++++++
+ 6 files changed, 137 insertions(+), 1 deletion(-)
+
 --- a/include/net/netfilter/nf_conntrack_ecache.h
 +++ b/include/net/netfilter/nf_conntrack_ecache.h
 @@ -71,6 +71,10 @@ struct nf_ct_event {
diff --git a/target/linux/generic/hack-4.19/952-net-conntrack-events-support-multiple-registrant.patch b/target/linux/generic/hack-4.19/952-net-conntrack-events-support-multiple-registrant.patch
index 710cbe2bcf..c0b811e4b8 100644
--- a/target/linux/generic/hack-4.19/952-net-conntrack-events-support-multiple-registrant.patch
+++ b/target/linux/generic/hack-4.19/952-net-conntrack-events-support-multiple-registrant.patch
@@ -1,3 +1,25 @@
+From 42824d4b753f84ccf885eca602c5037338b546c8 Mon Sep 17 00:00:00 2001
+From: Zhi Chen <zhichen@codeaurora.org>
+Date: Tue, 13 Jan 2015 14:28:18 -0800
+Subject: [PATCH 3/3] net: conntrack events, support multiple registrant
+
+Merging this patch from kernel 3.4:
+This was supported by old (.28) kernel versions but removed
+because of it's overhead.
+But we need this feature for NA connection manager. Both ipv4
+and ipv6 modules needs to register themselves to ct events.
+
+Change-Id: Iebfb254590fb594f5baf232f849d1b7ae45ef757
+Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
+---
+ include/net/netfilter/nf_conntrack_ecache.h | 42 ++++++++++++++++++-
+ include/net/netns/conntrack.h               |  4 ++
+ net/netfilter/Kconfig                       |  8 ++++
+ net/netfilter/nf_conntrack_core.c           |  4 ++
+ net/netfilter/nf_conntrack_ecache.c         | 63 +++++++++++++++++++++++++++++
+ net/netfilter/nf_conntrack_netlink.c        | 17 ++++++++
+ 6 files changed, 137 insertions(+), 1 deletion(-)
+
 --- a/include/net/netfilter/nf_conntrack_ecache.h
 +++ b/include/net/netfilter/nf_conntrack_ecache.h
 @@ -71,6 +71,10 @@ struct nf_ct_event {