4 files changed, 8 insertions, 2 deletions

diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index 9dc1039ff78b..8df0b7f7fc6e 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -18,6 +18,7 @@ enum nf_nat_manip_type
 #define IP_NAT_RANGE_MAP_IPS 1
 #define IP_NAT_RANGE_PROTO_SPECIFIED 2
 #define IP_NAT_RANGE_PROTO_RANDOM 4
+#define IP_NAT_RANGE_PERSISTENT 8
 
 /* NAT sequence number modifications */
 struct nf_nat_seq {
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index fe65187810f0..3229e0a81ba6 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -211,7 +211,8 @@ find_best_ips_proto(struct nf_conntrack_tuple *tuple,
         minip = ntohl(range->min_ip);
         maxip = ntohl(range->max_ip);
         j = jhash_2words((__force u32)tuple->src.u3.ip,
-                         (__force u32)tuple->dst.u3.ip, 0);
+                         range->flags & IP_NAT_RANGE_PERSISTENT ?
+                                (__force u32)tuple->dst.u3.ip : 0, 0);
         j = ((u64)j * (maxip - minip + 1)) >> 32;
         *var_ipp = htonl(minip + j);
 }
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 30b8e9009f99..0fa5a422959f 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -176,7 +176,7 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
         }
 
         /* Get rid of expecteds, set helpers to NULL. */
-        hlist_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
+        hlist_nulls_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
                 unhelp(h, me);
         for (i = 0; i < nf_conntrack_htable_size; i++) {
                 hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 8bb998fe098b..beb37311e1a5 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -36,10 +36,14 @@ static struct nf_logger *__find_logger(int pf, const char *str_logger)
 int nf_log_register(u_int8_t pf, struct nf_logger *logger)
 {
         const struct nf_logger *llog;
+        int i;
 
         if (pf >= ARRAY_SIZE(nf_loggers))
                 return -EINVAL;
 
+        for (i = 0; i < ARRAY_SIZE(logger->list); i++)
+                INIT_LIST_HEAD(&logger->list[i]);
+
         mutex_lock(&nf_log_mutex);
 
         if (pf == NFPROTO_UNSPEC) {