Toke Høiland-Jørgensen df61235881 sch_cake: fix srchost/dsthost hashing mode
[ Upstream commit 86b9bbd332d0510679c7fedcee3e3bd278be5756 ]

When adding support for using the skb->hash value as the flow hash in CAKE,
I accidentally introduced a logic error that broke the host-only isolation
modes of CAKE (srchost and dsthost keywords). Specifically, the flow_hash
variable should stay initialised to 0 in cake_hash() in pure host-based
hashing mode. Add a check for this before using the skb->hash value as
flow_hash.

Fixes: b0c19ed6088a ("sch_cake: Take advantage of skb->hash where appropriate")
Reported-by: Pete Heist <pete@heistp.net>
Tested-by: Pete Heist <pete@heistp.net>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-08-26 08:35:49 -04:00
..
2020-02-01 12:25:06 -08:00
2020-07-13 17:20:40 -07:00
2020-07-13 17:20:40 -07:00
2021-03-30 14:31:57 +02:00
2021-03-30 14:31:57 +02:00
2021-03-30 14:31:57 +02:00
2021-03-30 14:31:57 +02:00