From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 02/10] netfilter: IDLETIMER: fix lockdep warning
Date: Thu, 23 Jul 2015 01:00:44 +0200 [thread overview]
Message-ID: <1437606052-5179-3-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1437606052-5179-1-git-send-email-pablo@netfilter.org>
From: Dmitry Torokhov <dtor@google.com>
Dynamically allocated sysfs attributes should be initialized with
sysfs_attr_init() otherwise lockdep will be angry with us:
[ 45.468653] BUG: key ffffffc030fad4e0 not in .data!
[ 45.468655] ------------[ cut here ]------------
[ 45.468666] WARNING: CPU: 0 PID: 1176 at /mnt/host/source/src/third_party/kernel/v3.18/kernel/locking/lockdep.c:2991 lockdep_init_map+0x12c/0x490()
[ 45.468672] DEBUG_LOCKS_WARN_ON(1)
[ 45.468672] CPU: 0 PID: 1176 Comm: iptables Tainted: G U W 3.18.0 #43
[ 45.468674] Hardware name: XXX
[ 45.468675] Call trace:
[ 45.468680] [<ffffffc0002072b4>] dump_backtrace+0x0/0x10c
[ 45.468683] [<ffffffc0002073d0>] show_stack+0x10/0x1c
[ 45.468688] [<ffffffc000a86cd4>] dump_stack+0x74/0x94
[ 45.468692] [<ffffffc000217ae0>] warn_slowpath_common+0x84/0xb0
[ 45.468694] [<ffffffc000217b84>] warn_slowpath_fmt+0x4c/0x58
[ 45.468697] [<ffffffc0002530a4>] lockdep_init_map+0x128/0x490
[ 45.468701] [<ffffffc000367ef0>] __kernfs_create_file+0x80/0xe4
[ 45.468704] [<ffffffc00036862c>] sysfs_add_file_mode_ns+0x104/0x170
[ 45.468706] [<ffffffc00036870c>] sysfs_create_file_ns+0x58/0x64
[ 45.468711] [<ffffffc000930430>] idletimer_tg_checkentry+0x14c/0x324
[ 45.468714] [<ffffffc00092a728>] xt_check_target+0x170/0x198
[ 45.468717] [<ffffffc000993efc>] check_target+0x58/0x6c
[ 45.468720] [<ffffffc000994c64>] translate_table+0x30c/0x424
[ 45.468723] [<ffffffc00099529c>] do_ipt_set_ctl+0x144/0x1d0
[ 45.468728] [<ffffffc0009079f0>] nf_setsockopt+0x50/0x60
[ 45.468732] [<ffffffc000946870>] ip_setsockopt+0x8c/0xb4
[ 45.468735] [<ffffffc0009661c0>] raw_setsockopt+0x10/0x50
[ 45.468739] [<ffffffc0008c1550>] sock_common_setsockopt+0x14/0x20
[ 45.468742] [<ffffffc0008bd190>] SyS_setsockopt+0x88/0xb8
[ 45.468744] ---[ end trace 41d156354d18c039 ]---
Signed-off-by: Dmitry Torokhov <dtor@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/xt_IDLETIMER.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index f407ebc1..29d2c31 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -126,6 +126,7 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
goto out;
}
+ sysfs_attr_init(&info->timer->attr.attr);
info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL);
if (!info->timer->attr.attr.name) {
ret = -ENOMEM;
--
1.7.10.4
next prev parent reply other threads:[~2015-07-22 22:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-22 23:00 [PATCH 00/10] Netfilter/IPVS fixes for net Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 01/10] netfilter: ctnetlink: put back references to master ct and expect objects Pablo Neira Ayuso
2015-07-22 23:00 ` Pablo Neira Ayuso [this message]
2015-07-22 23:00 ` [PATCH 03/10] ipvs: fix ipv6 route unreach panic Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 04/10] ipvs: do not use random local source address for tunnels Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 05/10] ipvs: fix crash if scheduler is changed Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 06/10] ipvs: skb_orphan in case of forwarding Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 07/10] ipvs: fix crash with sync protocol v0 and FTP Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 08/10] ipvs: call skb_sender_cpu_clear Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 09/10] netfilter: fix netns dependencies with conntrack templates Pablo Neira Ayuso
2015-07-22 23:00 ` [PATCH 10/10] netfilter: nf_conntrack: Support expectations in different zones Pablo Neira Ayuso
2015-07-25 7:18 ` [PATCH 00/10] Netfilter/IPVS fixes for net David Miller
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