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
..
af_packet.c	packet: Use symmetric hash for PACKET_FANOUT_HASH.	2016-07-01 16:07:50 -04:00
diag.c	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
internal.h	packet: add classic BPF fanout mode	2015-08-17 14:22:47 -07:00
Kconfig	packet: Diag core and basic socket info dumping	2012-08-14 16:56:33 -07:00
Makefile	packet: Diag core and basic socket info dumping	2012-08-14 16:56:33 -07:00