Cc'ing netfilter-devel
On Fri, Jun 21, 2024 at 10:41:13AM +0800, Jianguo Wu wrote:
> From: Jianguo Wu <wujianguo@xxxxxxxxxxxxxxx>
>
> if CONFIG_SYSFS is not enabled in config, we get the below compile error,
>
> All errors (new ones prefixed by >>):
>
> csky-linux-ld: net/netfilter/core.o: in function `netfilter_init':
> core.c:(.init.text+0x42): undefined reference to `netfilter_lwtunnel_init'
> >> csky-linux-ld: core.c:(.init.text+0x56): undefined reference to `netfilter_lwtunnel_fini'
> >> csky-linux-ld: core.c:(.init.text+0x70): undefined reference to `netfilter_lwtunnel_init'
> csky-linux-ld: core.c:(.init.text+0x78): undefined reference to `netfilter_lwtunnel_fini'
>
> Fixes: a2225e0250c5 ("netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-kbuild-all/202406210511.8vbByYj3-lkp@xxxxxxxxx/
> Closes: https://lore.kernel.org/oe-kbuild-all/202406210520.6HmrUaA2-lkp@xxxxxxxxx/
> Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxxxxxxx>
> ---
> net/netfilter/nf_hooks_lwtunnel.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/net/netfilter/nf_hooks_lwtunnel.c b/net/netfilter/nf_hooks_lwtunnel.c
> index 7cdb59bb4459..d8ebebc9775d 100644
> --- a/net/netfilter/nf_hooks_lwtunnel.c
> +++ b/net/netfilter/nf_hooks_lwtunnel.c
> @@ -117,4 +117,7 @@ void netfilter_lwtunnel_fini(void)
> {
> unregister_pernet_subsys(&nf_lwtunnel_net_ops);
> }
> +#else
> +int __init netfilter_lwtunnel_init(void) { return 0; }
> +void netfilter_lwtunnel_fini(void) {}
> #endif /* CONFIG_SYSCTL */
> --
> 1.8.3.1
>
