1 #include <linux/sysctl.h> 2 #include <linux/types.h> 3 4 #ifdef CONFIG_SYSCTL 5 int nf_hooks_lwtunnel_sysctl_handler(const struct ctl_table *table, int write, 6 void *buffer, size_t *lenp, loff_t *ppos); 7 #endif 8