netdev - Re: [Cake] [PATCH net-next v2] Add Common Applications Kept Enhanced (cake) qdisc

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Date:   Tue, 24 Apr 2018 11:32:00 -0400
From:   Georgios Amanakis <gamanakis@...il.com>
To:     Toke Høiland-Jørgensen <toke@...e.dk>
Cc:     Cake List <cake@...ts.bufferbloat.net>, netdev@...r.kernel.org
Subject: Re: [Cake] [PATCH net-next v2] Add Common Applications Kept Enhanced
 (cake) qdisc

On Tue, 24 Apr 2018 13:44:06 +0200
Toke Høiland-Jørgensen <toke@...e.dk> wrote:

> +config NET_SCH_CAKE
> +       tristate "Common Applications Kept Enhanced (CAKE)"
> +       help
> +         Say Y here if you want to use the Common Applications Kept Enhanced
> +          (CAKE) queue management algorithm.
> +
> +         To compile this driver as a module, choose M here: the module
> +         will be called sch_cake.

In net/sched/Kconfig we should probably add NF_CONNTRACK as a dependency:
"depends on NF_CONNTRACK"

Otherwise if NET_SCH_CAKE=y and NF_CONNTRACK=m compilation fails with:

net/sched/sch_cake.o: In function `cake_enqueue':
sch_cake.c:(.text+0x3e10): undefined reference to `nf_ct_get_tuplepr'
sch_cake.c:(.text+0x3e3a): undefined reference to `nf_conntrack_find_get'
make: *** [Makefile:1041: vmlinux] Error 1