]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
remove queue-4.8/batman-adv-fix-splat-on-disabling-an-interface.patch
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Nov 2016 12:02:16 +0000 (13:02 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Nov 2016 12:02:16 +0000 (13:02 +0100)
queue-4.8/batman-adv-fix-splat-on-disabling-an-interface.patch [deleted file]
queue-4.8/series

diff --git a/queue-4.8/batman-adv-fix-splat-on-disabling-an-interface.patch b/queue-4.8/batman-adv-fix-splat-on-disabling-an-interface.patch
deleted file mode 100644 (file)
index 392e513..0000000
+++ /dev/null
@@ -1,80 +0,0 @@
-From 9799c50372b23ed774791bdb87d700f1286ee8a9 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
-Date: Thu, 6 Oct 2016 01:43:08 +0200
-Subject: batman-adv: fix splat on disabling an interface
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-From: Linus Lüssing <linus.luessing@c0d3.blue>
-
-commit 9799c50372b23ed774791bdb87d700f1286ee8a9 upstream.
-
-As long as there is still a reference for a hard interface held, there might
-still be a forwarding packet relying on its attributes.
-
-Therefore avoid setting hard_iface->soft_iface to NULL when disabling a hard
-interface.
-
-This fixes the following, potential splat:
-
-    batman_adv: bat0: Interface deactivated: eth1
-    batman_adv: bat0: Removing interface: eth1
-    cgroup: new mount options do not match the existing superblock, will be ignored
-    batman_adv: bat0: Interface deactivated: eth3
-    batman_adv: bat0: Removing interface: eth3
-    ------------[ cut here ]------------
-    WARNING: CPU: 3 PID: 1986 at ./net/batman-adv/bat_iv_ogm.c:549 batadv_iv_send_outstanding_bat_ogm_packet+0x145/0x643 [batman_adv]
-    Modules linked in: batman_adv(O-) <...>
-    CPU: 3 PID: 1986 Comm: kworker/u8:2 Tainted: G        W  O    4.6.0-rc6+ #1
-    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
-    Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [batman_adv]
-     0000000000000000 ffff88001d93bca0 ffffffff8126c26b 0000000000000000
-     0000000000000000 ffff88001d93bcf0 ffffffff81051615 ffff88001f19f818
-     000002251d93bd68 0000000000000046 ffff88001dc04a00 ffff88001becbe48
-    Call Trace:
-     [<ffffffff8126c26b>] dump_stack+0x67/0x90
-     [<ffffffff81051615>] __warn+0xc7/0xe5
-     [<ffffffff8105164b>] warn_slowpath_null+0x18/0x1a
-     [<ffffffffa0356f24>] batadv_iv_send_outstanding_bat_ogm_packet+0x145/0x643 [batman_adv]
-     [<ffffffff8108b01f>] ? __lock_is_held+0x32/0x54
-     [<ffffffff810689a2>] process_one_work+0x2a8/0x4f5
-     [<ffffffff81068856>] ? process_one_work+0x15c/0x4f5
-     [<ffffffff81068df2>] worker_thread+0x1d5/0x2c0
-     [<ffffffff81068c1d>] ? process_scheduled_works+0x2e/0x2e
-     [<ffffffff81068c1d>] ? process_scheduled_works+0x2e/0x2e
-     [<ffffffff8106dd90>] kthread+0xc0/0xc8
-     [<ffffffff8144de82>] ret_from_fork+0x22/0x40
-     [<ffffffff8106dcd0>] ? __init_kthread_worker+0x55/0x55
-    ---[ end trace 647f9f325123dc05 ]---
-
-What happened here is, that there was still a forw_packet (here: a BATMAN IV
-OGM) in the queue of eth3 with the forw_packet->if_incoming set to eth1 and the
-forw_packet->if_outgoing set to eth3.
-
-When eth3 is to be deactivated and removed, then this thread waits for the
-forw_packet queued on eth3 to finish. Because eth1 was deactivated and removed
-earlier and by that had forw_packet->if_incoming->soft_iface, set to NULL, the
-splat when trying to send/flush the OGM on eth3 occures.
-
-Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol")
-Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
-[sven@narfation.org: Reduced size of Oops message]
-Signed-off-by: Sven Eckelmann <sven@narfation.org>
-Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- net/batman-adv/hard-interface.c |    1 -
- 1 file changed, 1 deletion(-)
-
---- a/net/batman-adv/hard-interface.c
-+++ b/net/batman-adv/hard-interface.c
-@@ -617,7 +617,6 @@ void batadv_hardif_disable_interface(str
-                       batadv_softif_destroy_sysfs(hard_iface->soft_iface);
-       }
--      hard_iface->soft_iface = NULL;
-       batadv_hardif_put(hard_iface);
- out:
index 3ec236ff8f81591f9742f2c713bd04021d0239ab..8a25dc2a1718f88ef32f0928953f048931e6ec27 100644 (file)
@@ -75,7 +75,6 @@ acpi-apei-fix-incorrect-return-value-of-ghes_proc.patch
 acpi-pci-irq-assign-isa-irq-directly-during-early-boot-stages.patch
 acpi-pci-pci_link-penalize-sci-correctly.patch
 acpi-pci-pci_link-include-pirq_penalty_pci_using-for-isa-irqs.patch
-batman-adv-fix-splat-on-disabling-an-interface.patch
 batman-adv-modify-neigh_list-only-with-rcu-list-functions.patch
 gpio-mvebu-use-irq_domain_add_linear.patch
 gpio-of-fix-gpio-drivers-with-multiple-gpio_chip-for-a-single-node.patch