Sven Eckelmann d6d73a8c00 batman-adv: Don't always reallocate the fragmentation skb head ... commit 992b03b88e36254e26e9a4977ab948683e21bd9f upstream. When a packet is fragmented by batman-adv, the original batman-adv header is not modified. Only a new fragmentation is inserted between the original one and the ethernet header. The code must therefore make sure that it has a writable region of this size in the skbuff head. But it is not useful to always reallocate the skbuff by this size even when there would be more than enough headroom still in the skb. The reallocation is just to costly during in this codepath. Fixes: ee75ed8887 ("batman-adv: Fragment and send skbs larger than mtu") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-26 11:36:24 +01:00
..
bat_algo.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bat_algo.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bat_iv_ogm.c	batman-adv: Avoid WARN_ON timing related checks	2021-06-30 08:48:15 -04:00
bat_iv_ogm.h	batman-adv: Unify include guards style	2018-07-07 22:02:17 +02:00
bat_v.c	batman-adv: Fix bat_v best gw refcnt after netlink dump	2018-06-23 10:29:33 +02:00
bat_v.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bat_v_elp.c	batman-adv: Revert "disable ethtool link speed detection when auto negotiation off"	2020-06-22 09:05:12 +02:00
bat_v_elp.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bat_v_ogm.c	batman-adv: Fix own OGM check in aggregated OGMs	2020-09-09 19:04:24 +02:00
bat_v_ogm.h	batman-adv: Unify include guards style	2018-07-07 22:02:17 +02:00
bitarray.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bitarray.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
bridge_loop_avoidance.c	net: batman-adv: fix error handling	2021-11-02 18:26:45 +01:00
bridge_loop_avoidance.h	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh	2020-10-01 13:14:52 +02:00
debugfs.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux	2018-07-20 21:17:12 -07:00
debugfs.h	batman-adv: Fix debugfs path for renamed softif	2018-06-23 10:29:33 +02:00
distributed-arp-table.c	batman-adv: Fix DAT candidate selection on little endian systems	2020-01-23 08:21:34 +01:00
distributed-arp-table.h	batman-adv: add DAT cache netlink support	2018-03-14 10:15:08 +01:00
fragmentation.c	batman-adv: Don't always reallocate the fragmentation skb head	2021-11-26 11:36:24 +01:00
fragmentation.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
gateway_client.c	batman-adv: Avoid uninitialized chaddr when handling DHCP	2020-09-09 19:04:24 +02:00
gateway_client.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
gateway_common.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
gateway_common.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
hard-interface.c	batman-adv: Consider fragmentation for needed_headroom	2021-11-26 11:36:24 +01:00
hard-interface.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
hash.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
hash.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
icmp_socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-23 11:31:58 -04:00
icmp_socket.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
Kconfig	batman-adv: Remove "default n" in Kconfig	2018-06-23 10:30:06 +02:00
log.c	batman-adv: set .owner to THIS_MODULE	2020-12-02 08:48:10 +01:00
log.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
main.c	net: batman-adv: fix error handling	2021-11-02 18:26:45 +01:00
main.h	batman-adv: Increase version number to 2018.3	2018-09-14 17:59:20 +02:00
Makefile	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
multicast.c	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN	2021-11-26 11:36:24 +01:00
multicast.h	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN	2021-11-26 11:36:24 +01:00
netlink.c	batman-adv: fix uninit-value in batadv_netlink_get_ifindex()	2019-09-16 08:21:41 +02:00
netlink.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
network-coding.c	net: batman-adv: fix error handling	2021-11-02 18:26:45 +01:00
network-coding.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
originator.c	batman-adv: Join batadv_purge_orig_ref and _batadv_purge_orig	2018-07-07 22:02:17 +02:00
originator.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-06 01:20:46 -05:00
routing.c	batman-adv: mcast/TT: fix wrongly dropped or rerouted packets	2020-10-01 13:14:51 +02:00
routing.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
send.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
send.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
soft-interface.c	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN	2021-11-26 11:36:24 +01:00
soft-interface.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
sysfs.c	batman-adv: Fix refcnt leak in batadv_store_throughput_override	2020-05-14 07:57:22 +02:00
sysfs.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
tp_meter.c	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
tp_meter.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
translation-table.c	net: batman-adv: fix error handling	2021-11-02 18:26:45 +01:00
translation-table.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
tvlv.c	batman-adv: Prevent duplicated tvlv handler	2018-09-06 14:37:13 +02:00
tvlv.h	batman-adv: Update copyright years for 2018	2018-02-26 17:57:39 +01:00
types.h	batman-adv: Avoid free/alloc race when handling OGM2 buffer	2020-03-18 07:14:25 +01:00