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: Mirsad Todorovac <mtodorovac69@xxxxxxxxx>
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>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
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 */
--
2.30.2
