diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 669e586b6b8f1914f1c93fad4b89ee1bdf60d096..5c15beafa7113dbf99302c2fc64510b46d329337 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -22,7 +22,7 @@
 #include <net/netfilter/nf_conntrack_zones.h>
 #include <net/netfilter/nf_log.h>
 
-static unsigned int nf_ct_icmp_timeout __read_mostly = 30*HZ;
+static const unsigned int nf_ct_icmp_timeout = 30*HZ;
 
 static inline struct nf_icmp_net *icmp_pernet(struct net *net)
 {
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 75a85e35a16befbe04a371cc3921bd3e0fa2800c..2548e2c8aedd0f08a1f37a491d42a23d302ce9e4 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -27,7 +27,7 @@
 #include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
 #include <net/netfilter/nf_log.h>
 
-static unsigned int nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
+static const unsigned int nf_ct_icmpv6_timeout = 30*HZ;
 
 static inline struct nf_icmp_net *icmpv6_pernet(struct net *net)
 {
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index f2d22442c89e67d0db4298e3ca50c24967042354..6c6896d21cd738f8ea680f9db4c0c7225354e711 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -12,7 +12,7 @@
 #include <linux/netfilter.h>
 #include <net/netfilter/nf_conntrack_l4proto.h>
 
-static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
+static const unsigned int nf_ct_generic_timeout = 600*HZ;
 
 static bool nf_generic_should_process(u8 proto)
 {
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index a881c074a43ae0bc7a12f90498544a47a10a4e78..d049ea5a3770df595f49511cd4ad96eb1195ca00 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -48,7 +48,7 @@ enum grep_conntrack {
 	GRE_CT_MAX
 };
 
-static unsigned int gre_timeouts[GRE_CT_MAX] = {
+static const unsigned int gre_timeouts[GRE_CT_MAX] = {
 	[GRE_CT_UNREPLIED]	= 30*HZ,
 	[GRE_CT_REPLIED]	= 180*HZ,
 };
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 69eaaca6f9332bd85d510fe37dcb3026cc2efdb1..fb9a35d1606996897c527be85afae52481edc16b 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -52,7 +52,7 @@ static const char *const sctp_conntrack_names[] = {
 #define HOURS * 60 MINS
 #define DAYS  * 24 HOURS
 
-static unsigned int sctp_timeouts[SCTP_CONNTRACK_MAX] __read_mostly = {
+static const unsigned int sctp_timeouts[SCTP_CONNTRACK_MAX] = {
 	[SCTP_CONNTRACK_CLOSED]			= 10 SECS,
 	[SCTP_CONNTRACK_COOKIE_WAIT]		= 3 SECS,
 	[SCTP_CONNTRACK_COOKIE_ECHOED]		= 3 SECS,
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 44a6038f99bc546a86a6063c57218d31a3c9a270..684cc29010a0c7714ce5056bc184ea9c2596a9b5 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -68,7 +68,7 @@ static const char *const tcp_conntrack_names[] = {
 #define HOURS * 60 MINS
 #define DAYS * 24 HOURS
 
-static unsigned int tcp_timeouts[TCP_CONNTRACK_TIMEOUT_MAX] __read_mostly = {
+static const unsigned int tcp_timeouts[TCP_CONNTRACK_TIMEOUT_MAX] = {
 	[TCP_CONNTRACK_SYN_SENT]	= 2 MINS,
 	[TCP_CONNTRACK_SYN_RECV]	= 60 SECS,
 	[TCP_CONNTRACK_ESTABLISHED]	= 5 DAYS,
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index 59a20f61c3647dc1642c0fbeef188ed6a2de5ebb..fe7243970aa454c88c68c6e16eaeea09ec012f81 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -26,7 +26,7 @@
 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
 #include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
-static unsigned int udp_timeouts[UDP_CT_MAX] = {
+static const unsigned int udp_timeouts[UDP_CT_MAX] = {
 	[UDP_CT_UNREPLIED]	= 30*HZ,
 	[UDP_CT_REPLIED]	= 180*HZ,
 };