netdev - [PATCH v3 06/30] inet: frags: refactor lowpan_net_frag

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Message-Id: <20180913145902.17531-7-sthemmin@microsoft.com>
Date:   Thu, 13 Sep 2018 07:58:38 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     davem@...emloft.net, gregkh@...uxfoundation.org
Cc:     netdev@...r.kernel.org, stable@...r.kernel.org, edumazet@...gle.com
Subject: [PATCH v3 06/30] inet: frags: refactor lowpan_net_frag_init()

From: Eric Dumazet <edumazet@...gle.com>

We want to call lowpan_net_frag_init() earlier.
Similar to commit "inet: frags: refactor ipv6_frag_init()"

This is a prereq to "inet: frags: use rhashtables for reassembly units"

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
(cherry picked from commit 807f1844df4ac23594268fa9f41902d0549e92aa)
---
 net/ieee802154/6lowpan/reassembly.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index 6badc055555b..ddada12a044d 100644
--- a/net/ieee802154/6lowpan/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -615,14 +615,6 @@ int __init lowpan_net_frag_init(void)
 {
 	int ret;
 
-	ret = lowpan_frags_sysctl_register();
-	if (ret)
-		return ret;
-
-	ret = register_pernet_subsys(&lowpan_frags_ops);
-	if (ret)
-		goto err_pernet;
-
 	lowpan_frags.hashfn = lowpan_hashfn;
 	lowpan_frags.constructor = lowpan_frag_init;
 	lowpan_frags.destructor = NULL;
@@ -632,11 +624,21 @@ int __init lowpan_net_frag_init(void)
 	lowpan_frags.frags_cache_name = lowpan_frags_cache_name;
 	ret = inet_frags_init(&lowpan_frags);
 	if (ret)
-		goto err_pernet;
+		goto out;
 
+	ret = lowpan_frags_sysctl_register();
+	if (ret)
+		goto err_sysctl;
+
+	ret = register_pernet_subsys(&lowpan_frags_ops);
+	if (ret)
+		goto err_pernet;
+out:
 	return ret;
 err_pernet:
 	lowpan_frags_sysctl_unregister();
+err_sysctl:
+	inet_frags_fini(&lowpan_frags);
 	return ret;
 }
 
-- 
2.18.0