skb_cow_head was first introduced in v2.6.23-rc6-155-gd9cc204 and we must use skb_cow on those kernel which will also copy the skb when it shares data with other skbs and not only when the header is only shared.
Signed-off-by: Sven Eckelmann <[email protected]> --- batman-adv/compat.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/batman-adv/compat.h b/batman-adv/compat.h index f0f0b16..5bf1532 100644 --- a/batman-adv/compat.h +++ b/batman-adv/compat.h @@ -70,6 +70,11 @@ static inline int skb_clone_writable(struct sk_buff *skb, unsigned int len) return 0; } +static inline int skb_cow_head(struct sk_buff *skb, unsigned int headroom) +{ + return skb_cow(skb, headroom); +} + #define cancel_delayed_work_sync(wq) cancel_delayed_work(wq) #endif /* < KERNEL_VERSION(2, 6, 23) */ -- 1.7.1
