arch_protect_bpf_trampoline
int __must_check arch_protect_bpf_trampoline(void *image, unsigned int size);
err = arch_protect_bpf_trampoline(st_map->image_pages[i],
err = arch_protect_bpf_trampoline(im->image, im->size);
err = arch_protect_bpf_trampoline(image, PAGE_SIZE);