Revert "net: fix percpu memory leaks"

This reverts commit 1d6119baf0610f813eb9d9580eb4fd16de5b4ceb.

After reverting commit 6d7b857d541e ("net: use lib/percpu_counter API
for fragmentation mem accounting") then here is no need for this
fix-up patch.  As percpu_counter is no longer used, it cannot
memory leak it any-longer.

Fixes: 6d7b857d541e ("net: use lib/percpu_counter API for fragmentation mem accounting")
Fixes: 1d6119baf061 ("net: fix percpu memory leaks")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 13 insertions, 41 deletions

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index fa635aa6d0b9..fc59e0775e00 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -103,15 +103,10 @@ struct inet_frags {
 int inet_frags_init(struct inet_frags *);
 void inet_frags_fini(struct inet_frags *);
 
-static inline int inet_frags_init_net(struct netns_frags *nf)
+static inline void inet_frags_init_net(struct netns_frags *nf)
 {
         atomic_set(&nf->mem, 0);
-        return 0;
 }
-static inline void inet_frags_uninit_net(struct netns_frags *nf)
-{
-}
-
 void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f);
 
 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index 30d875dff6b5..f85b08baff16 100644
--- a/net/ieee802154/6lowpan/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -580,19 +580,14 @@ static int __net_init lowpan_frags_init_net(struct net *net)
 {
         struct netns_ieee802154_lowpan *ieee802154_lowpan =
                 net_ieee802154_lowpan(net);
-        int res;
 
         ieee802154_lowpan->frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
         ieee802154_lowpan->frags.low_thresh = IPV6_FRAG_LOW_THRESH;
         ieee802154_lowpan->frags.timeout = IPV6_FRAG_TIMEOUT;
 
-        res = inet_frags_init_net(&ieee802154_lowpan->frags);
-        if (res)
-                return res;
-        res = lowpan_frags_ns_sysctl_register(net);
-        if (res)
-                inet_frags_uninit_net(&ieee802154_lowpan->frags);
-        return res;
+        inet_frags_init_net(&ieee802154_lowpan->frags);
+
+        return lowpan_frags_ns_sysctl_register(net);
 }
 
 static void __net_exit lowpan_frags_exit_net(struct net *net)
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 9a8cfac503dc..46408c220d9d 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -844,8 +844,6 @@ static void __init ip4_frags_ctl_register(void)
 
 static int __net_init ipv4_frags_init_net(struct net *net)
 {
-        int res;
-
         /* Fragment cache limits.
          *
          * The fragment memory accounting code, (tries to) account for
@@ -871,13 +869,9 @@ static int __net_init ipv4_frags_init_net(struct net *net)
 
         net->ipv4.frags.max_dist = 64;
 
-        res = inet_frags_init_net(&net->ipv4.frags);
-        if (res)
-                return res;
-        res = ip4_frags_ns_ctl_register(net);
-        if (res)
-                inet_frags_uninit_net(&net->ipv4.frags);
-        return res;
+        inet_frags_init_net(&net->ipv4.frags);
+
+        return ip4_frags_ns_ctl_register(net);
 }
 
 static void __net_exit ipv4_frags_exit_net(struct net *net)
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 986d4ca38832..b263bf3a19f7 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -622,18 +622,12 @@ EXPORT_SYMBOL_GPL(nf_ct_frag6_gather);
 
 static int nf_ct_net_init(struct net *net)
 {
-        int res;
-
         net->nf_frag.frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
         net->nf_frag.frags.low_thresh = IPV6_FRAG_LOW_THRESH;
         net->nf_frag.frags.timeout = IPV6_FRAG_TIMEOUT;
-        res = inet_frags_init_net(&net->nf_frag.frags);
-        if (res)
-                return res;
-        res = nf_ct_frag6_sysctl_register(net);
-        if (res)
-                inet_frags_uninit_net(&net->nf_frag.frags);
-        return res;
+        inet_frags_init_net(&net->nf_frag.frags);
+
+        return nf_ct_frag6_sysctl_register(net);
 }
 
 static void nf_ct_net_exit(struct net *net)
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index e1da5b888cc4..846012eae526 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -714,19 +714,13 @@ static void ip6_frags_sysctl_unregister(void)
 
 static int __net_init ipv6_frags_init_net(struct net *net)
 {
-        int res;
-
         net->ipv6.frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
         net->ipv6.frags.low_thresh = IPV6_FRAG_LOW_THRESH;
         net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
 
-        res = inet_frags_init_net(&net->ipv6.frags);
-        if (res)
-                return res;
-        res = ip6_frags_ns_sysctl_register(net);
-        if (res)
-                inet_frags_uninit_net(&net->ipv6.frags);
-        return res;
+        inet_frags_init_net(&net->ipv6.frags);
+
+        return ip6_frags_ns_sysctl_register(net);
 }
 
 static void __net_exit ipv6_frags_exit_net(struct net *net)