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batman-adv: fix elp packet data reservation

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The skb_reserve() call only reserved headroom for the mac header, but
not the elp packet header itself.

Fixing this by using skb_put()'ing towards the skb tail instead of
skb_push()'ing towards the skb head.

Fixes: d6f94d91f766 ("batman-adv: ELP - adding basic infrastructure")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Linus Lüssing 2016-08-23 03:13:03 +02:00 committed by Simon Wunderlich
parent 936523441b
commit 1e5d343b8f
1 changed files with 1 additions and 1 deletions
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2
net/batman-adv/bat_v_elp.c
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@ -335,7 +335,7 @@ int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface)
goto out;
skb_reserve(hard_iface->bat_v.elp_skb, ETH_HLEN + NET_IP_ALIGN);
elp_buff = skb_push(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
elp_buff = skb_put(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
elp_packet = (struct batadv_elp_packet *)elp_buff;
memset(elp_packet, 0, BATADV_ELP_HLEN);