David S. Miller eb70db8756 packet: Use symmetric hash for PACKET_FANOUT_HASH. ... People who use PACKET_FANOUT_HASH want a symmetric hash, meaning that they want packets going in both directions on a flow to hash to the same bucket. The core kernel SKB hash became non-symmetric when the ipv6 flow label and other entities were incorporated into the standard flow hash order to increase entropy. But there are no users of PACKET_FANOUT_HASH who want an assymetric hash, they all want a symmetric one. Therefore, use the flow dissector to compute a flat symmetric hash over only the protocol, addresses and ports. This hash does not get installed into and override the normal skb hash, so this change has no effect whatsoever on the rest of the stack. Reported-by: Eric Leblond <eric@regit.org> Tested-by: Eric Leblond <eric@regit.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-07-01 16:07:50 -04:00
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6lowpan
9p
802
8021q
appletalk
atm
ax25
batman-adv	batman-adv: Clean up untagged vlan when destroying via rtnl-link	2016-06-29 04:01:48 -04:00
bluetooth
bridge	ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output	2016-06-30 09:02:48 -04:00
caif
can
ceph
core	packet: Use symmetric hash for PACKET_FANOUT_HASH.	2016-07-01 16:07:50 -04:00
dcb
dccp
decnet
dns_resolver
dsa
ethernet
hsr
ieee802154
ipv4	ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output	2016-06-30 09:02:48 -04:00
ipv6
ipx
irda
iucv
kcm
key
l2tp
l3mdev
lapb
llc
mac80211
mac802154
mpls
netfilter
netlabel
netlink
netrom
nfc
openvswitch	openvswitch: fix conntrack netlink event delivery	2016-06-29 08:13:59 -04:00
packet	packet: Use symmetric hash for PACKET_FANOUT_HASH.	2016-07-01 16:07:50 -04:00
phonet
qrtr
rds
rfkill
rose
rxrpc
sched
sctp
sunrpc
switchdev
tipc
unix
vmw_vsock
wimax
wireless	cfg80211: fix proto in ieee80211_data_to_8023 for frames without LLC header	2016-06-29 11:50:33 +02:00
x25
xfrm
compat.c
Kconfig
Makefile
socket.c
sysctl_net.c