The following commit has been merged in the master branch: commit 4cbf055002c53c364d1b3275792e4487af76dd2d 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 Signed-off-by: Simon Wunderlich sw@simonwunderlich.de

diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index 07b0ba265472..0b9dd29d3b6a 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;