Repository : ssh://git@diktynna/batman-adv

On branch : master

commit 73e2dc5dadc9668c0c901798a8a671afc4608ce0 Author: Linus L��ssing linus.luessing@c0d3.blue Date: Mon May 17 00:33:08 2021 +0200

batman-adv: bcast: avoid skb-copy for (re)queued broadcasts

Broadcast packets send via batadv_send_outstanding_bcast_packet() were originally copied in batadv_forw_bcast_packet_to_list() before being queued. And after that only the ethernet header will be pushed through batadv_send_broadcast_skb()->batadv_send_skb_packet() which works safely on skb clones as it uses batadv_skb_head_push()->skb_cow_head().

Signed-off-by: Linus L��ssing linus.luessing@c0d3.blue Signed-off-by: Sven Eckelmann sven@narfation.org

73e2dc5dadc9668c0c901798a8a671afc4608ce0 net/batman-adv/send.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index 07b0ba26..0b9dd29d 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -1072,7 +1072,7 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work) }

/* send a copy of the saved skb */ - skb1 = skb_copy(forw_packet->skb, GFP_ATOMIC); + skb1 = skb_clone(forw_packet->skb, GFP_ATOMIC); if (!skb1) goto out;