linux-kernel - Re: [netfilter-nf-next:testing 1/6] net/netfilter/nf_conntrack_proto_tcp.c:592:32: warning: implicit conversion from 'enum <anonymous>' to 'enum nf_ct_tcp

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Message-ID: <20220901124213.GB7349@breakpoint.cc>
Date:   Thu, 1 Sep 2022 14:42:13 +0200
From:   Florian Westphal <fw@...len.de>
To:     kernel test robot <lkp@...el.com>
Cc:     Florian Westphal <fw@...len.de>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: Re: [netfilter-nf-next:testing 1/6]
 net/netfilter/nf_conntrack_proto_tcp.c:592:32: warning: implicit conversion
 from 'enum <anonymous>' to 'enum nf_ct_tcp_action'

kernel test robot <lkp@...el.com> wrote:
> tree:   git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git testing
> head:   655d797bf5e11676f7ef9e68af3e9700404f8695
> commit: 83d3b17508cc0f1a53b73080c51e57054ddf3499 [1/6] netfilter: conntrack: prepare tcp_in_window for ternary return value
> config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220901/202209012010.OWTXJac6-lkp@intel.com/config)
> compiler: m68k-linux-gcc (GCC) 12.1.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git/commit/?id=83d3b17508cc0f1a53b73080c51e57054ddf3499
>         git remote add netfilter-nf-next git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git
>         git fetch --no-tags netfilter-nf-next testing
>         git checkout 83d3b17508cc0f1a53b73080c51e57054ddf3499
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash net/netfilter/
> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All warnings (new ones prefixed by >>):
> 
>    net/netfilter/nf_conntrack_proto_tcp.c: In function 'tcp_in_window':
> >> net/netfilter/nf_conntrack_proto_tcp.c:592:32: warning: implicit conversion from 'enum <anonymous>' to 'enum nf_ct_tcp_action' [-Wenum-conversion]
>      592 |                         return true;
>          |                                ^~~~

I'll squash this fix:

                if (dir == IP_CT_DIR_REPLY && !tcph->ack)
-                       return true;
+                       return NFCT_TCP_ACCEPT;