Re: [PATCH nf-next] netfilter: cttimeout: move ctnl_untimeout to nf_conntrack

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On Tue, Jul 17, 2018 at 09:38:18PM +0200, Harsha Sharma wrote:
> Hello,
> 
> On Tue, Jul 17, 2018 at 5:44 PM, Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> wrote:
> > On Tue, Jul 17, 2018 at 03:24:22PM +0200, Pablo Neira Ayuso wrote:
> >> On Sat, Jul 14, 2018 at 12:28:02AM +0200, Harsha Sharma wrote:
> >> > As, ctnl_untimeout is required by nft_ct, so move ctnl_timeout from
> >> > nfnetlink_cttimeout to nf_conntrack_timeout and rename as nf_ct_timeout.
> >>
> >> Applied, thanks.
> >
> > Hm, there's a few kbuild test robot reports on this, I'm keeping it
> > back until we clarify.
> >
> >    net//netfilter/nfnetlink_cttimeout.c: In function 'ctnl_timeout_try_del':
> >>> net//netfilter/nfnetlink_cttimeout.c:312:3: error: implicit
> >>> declaration of function 'nf_ct_untimeout'; did you mean
> >>> 'nf_ct_netns_put'? [-Werror=implicit-function-declaration]
> >       nf_ct_untimeout(net, timeout);
> >       ^~~~~~~~~~~~~~~
> >       nf_ct_netns_put
> >    cc1: some warnings being treated as errors
> >
> > This one may be related to .config configuration that kbuild test
> > robot is attaching.
> 
> Ok, I'll wrap nf_ct_untimeout with CONFIG_NF_CONNTRACK_TIMEOUT.

But nfnetlink_cttimeout should depend on CONFIG_NF_CONNTRACK_TIMEOUT
from Kconfig, right? Probably it is a dependency that is not
fulfilled, by looking at the .config file that the robot provides we
can know what's the problem.

> > And this one:
> >
> >>> net/netfilter/nf_conntrack_timeout.c:38:62: sparse: incompatible
> >>> types in comparison expression (different base types)
> >
> > is likely related to missing __rcu tagging somewhere in the structure
> > definition most likely.
> 
> I don't get this, what I have missed.

Not probably your fault, an old sparse warning. Let me have a look.
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