From 999bb66b20b03c753801ecebf1ec2a03c6a63c96 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 30 Apr 2018 14:03:28 +0200 Subject: [PATCH] kernel: add missing in6_dev_put_clear call to an ipv6 network patch MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Fixes "unregister_netdevice: waiting for lo to become free. Usage count = 1" messages which started appearing since the update to 4.4.103. That problem was exposed by upstream commit 76da0704507bb ("ipv6: only call ip6_route_dev_notify() once for NETDEV_UNREGISTER") backported to 4.4.x branch in 2417da3f4d6bc. Fixes: 2b664499cd622 ("kernel: bump 4.4 to 4.4.103 for 17.01") Signed-off-by: Felix Fietkau Signed-off-by: Rafał Miłecki (cherry picked from commit 58f7b5b96c301176d639540df4723c798af2a999) --- ...cting-with-source-address-failed-policy.patch | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/target/linux/generic/patches-4.4/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch b/target/linux/generic/patches-4.4/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch index 2505be10d2..570e587fe7 100644 --- a/target/linux/generic/patches-4.4/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch +++ b/target/linux/generic/patches-4.4/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch @@ -202,7 +202,15 @@ Signed-off-by: Jonas Gorski net->ipv6.ip6_blk_hole_entry->dst.dev = dev; net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev); #endif -@@ -3605,6 +3644,17 @@ static int __net_init ip6_route_net_init +@@ -3390,6 +3429,7 @@ static int ip6_route_dev_notify(struct n + in6_dev_put(net->ipv6.ip6_null_entry->rt6i_idev); + #ifdef CONFIG_IPV6_MULTIPLE_TABLES + in6_dev_put(net->ipv6.ip6_prohibit_entry->rt6i_idev); ++ in6_dev_put(net->ipv6.ip6_policy_failed_entry->rt6i_idev); + in6_dev_put(net->ipv6.ip6_blk_hole_entry->rt6i_idev); + #endif + } +@@ -3605,6 +3645,17 @@ static int __net_init ip6_route_net_init net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops; dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst, ip6_template_metrics, true); @@ -220,7 +228,7 @@ Signed-off-by: Jonas Gorski #endif net->ipv6.sysctl.flush_delay = 0; -@@ -3623,6 +3673,8 @@ out: +@@ -3623,6 +3674,8 @@ out: return ret; #ifdef CONFIG_IPV6_MULTIPLE_TABLES @@ -229,7 +237,7 @@ Signed-off-by: Jonas Gorski out_ip6_prohibit_entry: kfree(net->ipv6.ip6_prohibit_entry); out_ip6_null_entry: -@@ -3640,6 +3692,7 @@ static void __net_exit ip6_route_net_exi +@@ -3640,6 +3693,7 @@ static void __net_exit ip6_route_net_exi #ifdef CONFIG_IPV6_MULTIPLE_TABLES kfree(net->ipv6.ip6_prohibit_entry); kfree(net->ipv6.ip6_blk_hole_entry); @@ -237,7 +245,7 @@ Signed-off-by: Jonas Gorski #endif dst_entries_destroy(&net->ipv6.ip6_dst_ops); } -@@ -3713,6 +3766,9 @@ void __init ip6_route_init_special_entri +@@ -3713,6 +3767,9 @@ void __init ip6_route_init_special_entri init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev); init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev; init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev); -- 2.30.2