batman-adv: upgrade package to latest release 2016.2
authorSven Eckelmann <sven@narfation.org>
Thu, 9 Jun 2016 16:28:17 +0000 (18:28 +0200)
committerSven Eckelmann <sven@narfation.org>
Thu, 9 Jun 2016 17:14:57 +0000 (19:14 +0200)
Signed-off-by: Sven Eckelmann <sven@narfation.org>
batman-adv/Makefile
batman-adv/files/compat-hacks.h
batman-adv/patches/0001-batman-adv-make-sure-ELP-OGM-orig-MAC-is-updated-on-.patch [deleted file]
batman-adv/patches/0002-batman-adv-Avoid-duplicate-neigh_node-additions.patch [deleted file]
batman-adv/patches/0003-batman-adv-Avoid-nullptr-derefence-in-batadv_v_neigh.patch [deleted file]
batman-adv/patches/0004-batman-adv-Fix-refcnt-leak-in-batadv_v_neigh_.patch [deleted file]
batman-adv/patches/0005-batman-adv-Fix-double-neigh_node_put-in-batadv_v_ogm.patch [deleted file]
batman-adv/patches/0006-batman-adv-initialize-ELP-orig-address-on-secondary-.patch [deleted file]

index 7de2eab..7650655 100644 (file)
@@ -10,9 +10,9 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=batman-adv
 
-PKG_VERSION:=2016.1
-PKG_RELEASE:=1
-PKG_MD5SUM:=8c8e449009b4d29512d26ee308960bb5
+PKG_VERSION:=2016.2
+PKG_RELEASE:=0
+PKG_MD5SUM:=dd1ab664475902fc3dbf34998bbe5a90
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.open-mesh.org/batman/releases/batman-adv-$(PKG_VERSION)
index 5126fc2..a910c2d 100644 (file)
@@ -74,3 +74,13 @@ batadv_ethtool_get_link_ksettings(struct net_device *dev,
 }
 
 #endif /* < KERNEL_VERSION(4, 6, 0) */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
+
+#define netif_trans_update batadv_netif_trans_update
+static inline void batadv_netif_trans_update(struct net_device *dev)
+{
+       dev->trans_start = jiffies;
+}
+
+#endif /* < KERNEL_VERSION(4, 7, 0) */
diff --git a/batman-adv/patches/0001-batman-adv-make-sure-ELP-OGM-orig-MAC-is-updated-on-.patch b/batman-adv/patches/0001-batman-adv-make-sure-ELP-OGM-orig-MAC-is-updated-on-.patch
deleted file mode 100644 (file)
index 70adb91..0000000
+++ /dev/null
@@ -1,64 +0,0 @@
-From a636bf0b69010222ea58337d425ca9ff8ce52639 Mon Sep 17 00:00:00 2001
-From: Antonio Quartulli <a@unstable.cc>
-Date: Mon, 2 May 2016 18:27:38 +0800
-Subject: [PATCH 1/6] batman-adv: make sure ELP/OGM orig MAC is updated on
- address change
-
-When the MAC address of the primary interface is changed,
-update the originator address in the ELP and OGM skb buffers as
-well in order to reflect the change.
-
-Fixes: a4b88af77e28 ("batman-adv: ELP - adding basic infrastructure")
-Reported-by: Marek Lindner <marek@neomailbox.ch>
-Signed-off-by: Antonio Quartulli <a@unstable.cc>
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/bat_v.c | 26 ++++++++++++++++++++++----
- 1 file changed, 22 insertions(+), 4 deletions(-)
-
-diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
-index 4026f19..4547fce 100644
---- a/net/batman-adv/bat_v.c
-+++ b/net/batman-adv/bat_v.c
-@@ -72,16 +72,34 @@ static void batadv_v_iface_disable(struct batadv_hard_iface *hard_iface)
-       batadv_v_elp_iface_disable(hard_iface);
- }
--static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface)
--{
--}
--
- static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface)
- {
-       batadv_v_elp_primary_iface_set(hard_iface);
-       batadv_v_ogm_primary_iface_set(hard_iface);
- }
-+/**
-+ * batadv_v_iface_update_mac - react to hard-interface MAC address change
-+ * @hard_iface: the modified interface
-+ *
-+ * If the modified interface is the primary one, update the originator
-+ * address in the ELP and OGM messages to reflect the new MAC address.
-+ */
-+static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface)
-+{
-+      struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
-+      struct batadv_hard_iface *primary_if;
-+
-+      primary_if = batadv_primary_if_get_selected(bat_priv);
-+      if (primary_if != hard_iface)
-+              goto out;
-+
-+      batadv_v_primary_iface_set(hard_iface);
-+out:
-+      if (primary_if)
-+              batadv_hardif_put(primary_if);
-+}
-+
- static void
- batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh)
- {
--- 
-2.8.0.rc3
-
diff --git a/batman-adv/patches/0002-batman-adv-Avoid-duplicate-neigh_node-additions.patch b/batman-adv/patches/0002-batman-adv-Avoid-duplicate-neigh_node-additions.patch
deleted file mode 100644 (file)
index ea191b3..0000000
+++ /dev/null
@@ -1,89 +0,0 @@
-From 8013ae257447c99d7ba037967458f91ceb4051ae Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
-Date: Thu, 7 Jan 2016 08:11:12 +0100
-Subject: [PATCH 2/6] batman-adv: Avoid duplicate neigh_node additions
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Two parallel calls to batadv_neigh_node_new() might race for creating
-and adding the same neig_node. Fix this by including the check for any
-already existing, identical neigh_node within the spin-lock.
-
-This fixes splats like the following:
-
-[  739.535069] ------------[ cut here ]------------
-[  739.535079] WARNING: CPU: 0 PID: 0 at /usr/src/batman-adv/git/batman-adv/net/batman-adv/bat_iv_ogm.c:1004 batadv_iv_ogm_process_per_outif+0xe3f/0xe60 [batman_adv]()
-[  739.535092] too many matching neigh_nodes
-[  739.535094] Modules linked in: dm_mod tun ip6table_filter ip6table_mangle ip6table_nat nf_nat_ipv6 ip6_tables xt_nat iptable_nat nf_nat_ipv4 nf_nat xt_TCPMSS xt_mark iptable_mangle xt_tcpudp xt_conntrack iptable_filter ip_tables x_tables ip_gre ip_tunnel gre bridge stp llc thermal_sys kvm_intel kvm crct10dif_pclmul crc32_pclmul sha256_ssse3 sha256_generic hmac drbg ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd evdev pcspkr ip6_gre ip6_tunnel tunnel6 batman_adv(O) libcrc32c nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack autofs4 ext4 crc16 mbcache jbd2 xen_netfront xen_blkfront crc32c_intel
-[  739.535177] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W  O    4.2.0-0.bpo.1-amd64 #1 Debian 4.2.6-3~bpo8+2
-[  739.535186]  0000000000000000 ffffffffa013b050 ffffffff81554521 ffff88007d003c18
-[  739.535201]  ffffffff8106fa01 0000000000000000 ffff8800047a087a ffff880079c3a000
-[  739.735602]  ffff88007b82bf40 ffff88007bc2d1c0 ffffffff8106fa7a ffffffffa013aa8e
-[  739.735624] Call Trace:
-[  739.735639]  <IRQ>  [<ffffffff81554521>] ? dump_stack+0x40/0x50
-[  739.735677]  [<ffffffff8106fa01>] ? warn_slowpath_common+0x81/0xb0
-[  739.735692]  [<ffffffff8106fa7a>] ? warn_slowpath_fmt+0x4a/0x50
-[  739.735715]  [<ffffffffa012448f>] ? batadv_iv_ogm_process_per_outif+0xe3f/0xe60 [batman_adv]
-[  739.735740]  [<ffffffffa0124813>] ? batadv_iv_ogm_receive+0x363/0x380 [batman_adv]
-[  739.735762]  [<ffffffffa0124813>] ? batadv_iv_ogm_receive+0x363/0x380 [batman_adv]
-[  739.735783]  [<ffffffff810b0841>] ? __raw_callee_save___pv_queued_spin_unlock+0x11/0x20
-[  739.735804]  [<ffffffffa012cb39>] ? batadv_batman_skb_recv+0xc9/0x110 [batman_adv]
-[  739.735825]  [<ffffffff81464891>] ? __netif_receive_skb_core+0x841/0x9a0
-[  739.735838]  [<ffffffff810b0841>] ? __raw_callee_save___pv_queued_spin_unlock+0x11/0x20
-[  739.735853]  [<ffffffff81465681>] ? process_backlog+0xa1/0x140
-[  739.735864]  [<ffffffff81464f1a>] ? net_rx_action+0x20a/0x320
-[  739.735878]  [<ffffffff81073aa7>] ? __do_softirq+0x107/0x270
-[  739.735891]  [<ffffffff81073d82>] ? irq_exit+0x92/0xa0
-[  739.735905]  [<ffffffff8137e0d1>] ? xen_evtchn_do_upcall+0x31/0x40
-[  739.735924]  [<ffffffff8155b8fe>] ? xen_do_hypervisor_callback+0x1e/0x40
-[  739.735939]  <EOI>  [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
-[  739.735965]  [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
-[  739.735979]  [<ffffffff8100a39c>] ? xen_safe_halt+0xc/0x20
-[  739.735991]  [<ffffffff8101da6c>] ? default_idle+0x1c/0xa0
-[  739.736004]  [<ffffffff810abf6b>] ? cpu_startup_entry+0x2eb/0x350
-[  739.736019]  [<ffffffff81b2af5e>] ? start_kernel+0x480/0x48b
-[  739.736032]  [<ffffffff81b2d116>] ? xen_start_kernel+0x507/0x511
-[  739.736048] ---[ end trace c106bb901244bc8c ]---
-
-Reported-by: Martin Weinelt <martin@darmstadt.freifunk.net>
-Signed-off-by: Linus L├╝ssing <linus.luessing@c0d3.blue>
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/originator.c | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
-index c355a82..28241a4 100644
---- a/net/batman-adv/originator.c
-+++ b/net/batman-adv/originator.c
-@@ -630,6 +630,8 @@ batadv_neigh_node_new(struct batadv_orig_node *orig_node,
-       struct batadv_neigh_node *neigh_node;
-       struct batadv_hardif_neigh_node *hardif_neigh = NULL;
-+      spin_lock_bh(&orig_node->neigh_list_lock);
-+
-       neigh_node = batadv_neigh_node_get(orig_node, hard_iface, neigh_addr);
-       if (neigh_node)
-               goto out;
-@@ -666,15 +668,15 @@ batadv_neigh_node_new(struct batadv_orig_node *orig_node,
-       kref_init(&neigh_node->refcount);
-       kref_get(&neigh_node->refcount);
--      spin_lock_bh(&orig_node->neigh_list_lock);
-       hlist_add_head_rcu(&neigh_node->list, &orig_node->neigh_list);
--      spin_unlock_bh(&orig_node->neigh_list_lock);
-       batadv_dbg(BATADV_DBG_BATMAN, orig_node->bat_priv,
-                  "Creating new neighbor %pM for orig_node %pM on interface %s\n",
-                  neigh_addr, orig_node->orig, hard_iface->net_dev->name);
- out:
-+      spin_unlock_bh(&orig_node->neigh_list_lock);
-+
-       if (hardif_neigh)
-               batadv_hardif_neigh_put(hardif_neigh);
-       return neigh_node;
--- 
-2.8.0.rc3
-
diff --git a/batman-adv/patches/0003-batman-adv-Avoid-nullptr-derefence-in-batadv_v_neigh.patch b/batman-adv/patches/0003-batman-adv-Avoid-nullptr-derefence-in-batadv_v_neigh.patch
deleted file mode 100644 (file)
index aa07ad5..0000000
+++ /dev/null
@@ -1,38 +0,0 @@
-From 036aa7b7181ee96ae6971eb31dd97b6ace7c0a80 Mon Sep 17 00:00:00 2001
-From: Sven Eckelmann <sven@narfation.org>
-Date: Fri, 6 May 2016 11:43:38 +0200
-Subject: [PATCH 3/6] batman-adv: Avoid nullptr derefence in
- batadv_v_neigh_is_sob
-
-batadv_neigh_ifinfo_get can return NULL when it cannot find (even when only
-temporarily) anymore the neigh_ifinfo in the list neigh->ifinfo_list. This
-has to be checked to avoid kernel Oopses when the ifinfo is dereferenced.
-
-This a situation which isn't expected but is already handled by functions
-like batadv_v_neigh_cmp. The same kind of warning is therefore used before
-the function returns without dereferencing the pointers.
-
-Fixes: b05bbab5e1fc ("batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API calls")
-Signed-off-by: Sven Eckelmann <sven@narfation.org>
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/bat_v.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
-index 4547fce..7e1467a 100644
---- a/net/batman-adv/bat_v.c
-+++ b/net/batman-adv/bat_v.c
-@@ -295,6 +295,9 @@ static bool batadv_v_neigh_is_sob(struct batadv_neigh_node *neigh1,
-       ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);
-       ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
-+      if (WARN_ON(!ifinfo1 || !ifinfo2))
-+              return false;
-+
-       threshold = ifinfo1->bat_v.throughput / 4;
-       threshold = ifinfo1->bat_v.throughput - threshold;
--- 
-2.8.0.rc3
-
diff --git a/batman-adv/patches/0004-batman-adv-Fix-refcnt-leak-in-batadv_v_neigh_.patch b/batman-adv/patches/0004-batman-adv-Fix-refcnt-leak-in-batadv_v_neigh_.patch
deleted file mode 100644 (file)
index 15ef21c..0000000
+++ /dev/null
@@ -1,81 +0,0 @@
-From 650d41de4be2fe9e9d1842c1abdd357dedbaa7ba Mon Sep 17 00:00:00 2001
-From: Sven Eckelmann <sven@narfation.org>
-Date: Fri, 6 May 2016 11:43:39 +0200
-Subject: [PATCH 4/6] batman-adv: Fix refcnt leak in batadv_v_neigh_*
-
-The functions batadv_neigh_ifinfo_get increase the reference counter of the
-batadv_neigh_ifinfo. These have to be reduced again when the reference is
-not used anymore to correctly free the objects.
-
-Fixes: b05bbab5e1fc ("batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API calls")
-Signed-off-by: Sven Eckelmann <sven@narfation.org>
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/bat_v.c | 32 +++++++++++++++++++++++++-------
- 1 file changed, 25 insertions(+), 7 deletions(-)
-
-diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
-index 7e1467a..2bcb29b 100644
---- a/net/batman-adv/bat_v.c
-+++ b/net/batman-adv/bat_v.c
-@@ -274,14 +274,23 @@ static int batadv_v_neigh_cmp(struct batadv_neigh_node *neigh1,
-                             struct batadv_hard_iface *if_outgoing2)
- {
-       struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;
-+      int ret = 0;
-       ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);
-+      if (WARN_ON(!ifinfo1))
-+              goto err_ifinfo1;
-+
-       ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
-+      if (WARN_ON(!ifinfo2))
-+              goto err_ifinfo2;
--      if (WARN_ON(!ifinfo1 || !ifinfo2))
--              return 0;
-+      ret = ifinfo1->bat_v.throughput - ifinfo2->bat_v.throughput;
--      return ifinfo1->bat_v.throughput - ifinfo2->bat_v.throughput;
-+      batadv_neigh_ifinfo_put(ifinfo2);
-+err_ifinfo2:
-+      batadv_neigh_ifinfo_put(ifinfo1);
-+err_ifinfo1:
-+      return ret;
- }
- static bool batadv_v_neigh_is_sob(struct batadv_neigh_node *neigh1,
-@@ -291,17 +300,26 @@ static bool batadv_v_neigh_is_sob(struct batadv_neigh_node *neigh1,
- {
-       struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;
-       u32 threshold;
-+      bool ret = false;
-       ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);
--      ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
-+      if (WARN_ON(!ifinfo1))
-+              goto err_ifinfo1;
--      if (WARN_ON(!ifinfo1 || !ifinfo2))
--              return false;
-+      ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
-+      if (WARN_ON(!ifinfo2))
-+              goto err_ifinfo2;
-       threshold = ifinfo1->bat_v.throughput / 4;
-       threshold = ifinfo1->bat_v.throughput - threshold;
--      return ifinfo2->bat_v.throughput > threshold;
-+      ret = ifinfo2->bat_v.throughput > threshold;
-+
-+      batadv_neigh_ifinfo_put(ifinfo2);
-+err_ifinfo2:
-+      batadv_neigh_ifinfo_put(ifinfo1);
-+err_ifinfo1:
-+      return ret;
- }
- static struct batadv_algo_ops batadv_batman_v __read_mostly = {
--- 
-2.8.0.rc3
-
diff --git a/batman-adv/patches/0005-batman-adv-Fix-double-neigh_node_put-in-batadv_v_ogm.patch b/batman-adv/patches/0005-batman-adv-Fix-double-neigh_node_put-in-batadv_v_ogm.patch
deleted file mode 100644 (file)
index 8ea3788..0000000
+++ /dev/null
@@ -1,40 +0,0 @@
-From fc3e79d9ef2a1006f94e441d9613749cbbe7176a Mon Sep 17 00:00:00 2001
-From: Sven Eckelmann <sven@narfation.org>
-Date: Fri, 6 May 2016 22:27:09 +0200
-Subject: [PATCH 5/6] batman-adv: Fix double neigh_node_put in
- batadv_v_ogm_route_update
-
-The router is put down twice when it was non-NULL and either orig_ifinfo is
-NULL afterwards or batman-adv receives a packet with the same sequence
-number. This will end up in a use-after-free when the batadv_neigh_node is
-removed because the reference counter ended up too early at 0.
-
-Fixes: 667996ebeab4 ("batman-adv: OGMv2 - implement originators logic")
-Reported-by: Gui Iribarren <gui@altermundi.net>
-Tested-by: Antonio Quartulli <a@unstable.cc>
-Tested-by: Marek Lindner <mareklindner@neomailbox.ch>
-Signed-off-by: Sven Eckelmann <sven@narfation.org>
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/bat_v_ogm.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c
-index d9bcbe6..91df28a 100644
---- a/net/batman-adv/bat_v_ogm.c
-+++ b/net/batman-adv/bat_v_ogm.c
-@@ -529,8 +529,10 @@ static void batadv_v_ogm_route_update(struct batadv_priv *bat_priv,
-               goto out;
-       }
--      if (router)
-+      if (router) {
-               batadv_neigh_node_put(router);
-+              router = NULL;
-+      }
-       /* Update routes, and check if the OGM is from the best next hop */
-       batadv_v_ogm_orig_update(bat_priv, orig_node, neigh_node, ogm2,
--- 
-2.8.0.rc3
-
diff --git a/batman-adv/patches/0006-batman-adv-initialize-ELP-orig-address-on-secondary-.patch b/batman-adv/patches/0006-batman-adv-initialize-ELP-orig-address-on-secondary-.patch
deleted file mode 100644 (file)
index f87ddf0..0000000
+++ /dev/null
@@ -1,110 +0,0 @@
-From f58a0b03873fd3aa9568c11af198f997ed2208cc Mon Sep 17 00:00:00 2001
-From: Marek Lindner <mareklindner@neomailbox.ch>
-Date: Sat, 7 May 2016 19:54:17 +0800
-Subject: [PATCH 6/6] batman-adv: initialize ELP orig address on secondary
- interfaces
-
-This fix prevents nodes to wrongly create a 00:00:00:00:00:00 originator
-which can potentially interfere with the rest of the neighbor statistics.
-
-Fixes: a4b88af77e28 ("batman-adv: ELP - adding basic infrastructure")
-Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
----
- net/batman-adv/bat_v.c     | 10 ++++++++++
- net/batman-adv/bat_v_elp.c | 31 ++++++++++++++++++++++---------
- net/batman-adv/bat_v_elp.h |  2 ++
- 3 files changed, 34 insertions(+), 9 deletions(-)
-
-diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
-index 2bcb29b..0caca2f 100644
---- a/net/batman-adv/bat_v.c
-+++ b/net/batman-adv/bat_v.c
-@@ -39,6 +39,16 @@
- static void batadv_v_iface_activate(struct batadv_hard_iface *hard_iface)
- {
-+      struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
-+      struct batadv_hard_iface *primary_if;
-+
-+      primary_if = batadv_primary_if_get_selected(bat_priv);
-+
-+      if (primary_if) {
-+              batadv_v_elp_iface_activate(primary_if, hard_iface);
-+              batadv_hardif_put(primary_if);
-+      }
-+
-       /* B.A.T.M.A.N. V does not use any queuing mechanism, therefore it can
-        * set the interface as ACTIVE right away, without any risk of race
-        * condition
-diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
-index 3844e7e..df42eb1 100644
---- a/net/batman-adv/bat_v_elp.c
-+++ b/net/batman-adv/bat_v_elp.c
-@@ -377,6 +377,27 @@ void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
- }
- /**
-+ * batadv_v_elp_iface_activate - update the ELP buffer belonging to the given
-+ *  hard-interface
-+ * @primary_iface: the new primary interface
-+ * @hard_iface: interface holding the to-be-updated buffer
-+ */
-+void batadv_v_elp_iface_activate(struct batadv_hard_iface *primary_iface,
-+                               struct batadv_hard_iface *hard_iface)
-+{
-+      struct batadv_elp_packet *elp_packet;
-+      struct sk_buff *skb;
-+
-+      if (!hard_iface->bat_v.elp_skb)
-+              return;
-+
-+      skb = hard_iface->bat_v.elp_skb;
-+      elp_packet = (struct batadv_elp_packet *)skb->data;
-+      ether_addr_copy(elp_packet->orig,
-+                      primary_iface->net_dev->dev_addr);
-+}
-+
-+/**
-  * batadv_v_elp_primary_iface_set - change internal data to reflect the new
-  *  primary interface
-  * @primary_iface: the new primary interface
-@@ -384,8 +405,6 @@ void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
- void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface)
- {
-       struct batadv_hard_iface *hard_iface;
--      struct batadv_elp_packet *elp_packet;
--      struct sk_buff *skb;
-       /* update orig field of every elp iface belonging to this mesh */
-       rcu_read_lock();
-@@ -393,13 +412,7 @@ void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface)
-               if (primary_iface->soft_iface != hard_iface->soft_iface)
-                       continue;
--              if (!hard_iface->bat_v.elp_skb)
--                      continue;
--
--              skb = hard_iface->bat_v.elp_skb;
--              elp_packet = (struct batadv_elp_packet *)skb->data;
--              ether_addr_copy(elp_packet->orig,
--                              primary_iface->net_dev->dev_addr);
-+              batadv_v_elp_iface_activate(primary_iface, hard_iface);
-       }
-       rcu_read_unlock();
- }
-diff --git a/net/batman-adv/bat_v_elp.h b/net/batman-adv/bat_v_elp.h
-index e95f1bc..cc130b2 100644
---- a/net/batman-adv/bat_v_elp.h
-+++ b/net/batman-adv/bat_v_elp.h
-@@ -25,6 +25,8 @@ struct work_struct;
- int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface);
- void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface);
-+void batadv_v_elp_iface_activate(struct batadv_hard_iface *primary_iface,
-+                               struct batadv_hard_iface *hard_iface);
- void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface);
- int batadv_v_elp_packet_recv(struct sk_buff *skb,
-                            struct batadv_hard_iface *if_incoming);
--- 
-2.8.0.rc3
-