diff options
| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2021-05-17 01:33:08 +0300 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2021-05-17 13:00:44 +0300 |
| commit | 4cbf055002c53c364d1b3275792e4487af76dd2d (patch) | |
| tree | c2646ab5a4e14178b0064f2aa3970eec1e79d11b /net/batman-adv | |
| parent | 3f69339068f93e206e581e6ab9927502f8722ac7 (diff) | |
| download | linux-4cbf055002c53c364d1b3275792e4487af76dd2d.tar.xz | |
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 Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv')
| -rw-r--r-- | net/batman-adv/send.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |