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[4.14,0/5] batman-adv: Fixes for stable/linux-4.14.y

Message ID 20211120124018.260907-1-sven@narfation.org
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Sven Eckelmann Nov. 20, 2021, 12:40 p.m. UTC 
Hi,

I went through  all changes in batman-adv since v4.14 with a Fixes: line
and checked whether they were backported to the LTS kernels. The ones which
weren't ported and applied to this branch are now part of this patch series.

There are also following three patches included:

* batman-adv: Consider fragmentation for needed_headroom
* batman-adv: Reserve needed_*room for fragments
* batman-adv: Don't always reallocate the fragmentation skb head

which could in some circumstances cause packet loss but which were created
to fix high CPU load/low throughput problems. But I've added them here
anyway because the corresponding VXLAN patches were also added to stable.
And some stable kernels also got these fixes a while back.

Kind regards,
	Sven

Linus Lüssing (2):
  batman-adv: mcast: fix duplicate mcast packets in BLA backbone from
    LAN
  batman-adv: mcast: fix duplicate mcast packets from BLA backbone to
    mesh

Sven Eckelmann (3):
  batman-adv: Consider fragmentation for needed_headroom
  batman-adv: Reserve needed_*room for fragments
  batman-adv: Don't always reallocate the fragmentation skb head

 net/batman-adv/bridge_loop_avoidance.c | 103 +++++++++++++++++++++----
 net/batman-adv/fragmentation.c         |  26 ++++---
 net/batman-adv/hard-interface.c        |   3 +
 net/batman-adv/multicast.c             |  31 ++++++++
 net/batman-adv/multicast.h             |  15 ++++
 net/batman-adv/soft-interface.c        |   5 +-
 6 files changed, 154 insertions(+), 29 deletions(-)