timer_cb1
static int timer_cb1(void *map, int *key, struct bpf_timer *timer)
static int timer_cb1(void *map, int *k, struct elem *v)
static int timer_cb1(void *map, int *key, struct hmap_elem *val)
__noinline static int timer_cb1(void *map, int *key, struct bpf_timer *timer)