On 2/25/25 1:29 PM, Amery Hung wrote:
@@ -1411,6 +1496,13 @@ static void st_ops_unreg(void *kdata, struct bpf_link *link)
static int st_ops_init(struct btf *btf)
{
+ struct btf *kfunc_btf;
+
+ bpf_cgroup_from_id_id = bpf_find_btf_id("bpf_cgroup_from_id", BTF_KIND_FUNC, &kfunc_btf);
+ bpf_cgroup_release_id = bpf_find_btf_id("bpf_cgroup_release", BTF_KIND_FUNC, &kfunc_btf);
+ if (!bpf_cgroup_from_id_id || !bpf_cgroup_release_id)
Just noticed this. This should be "< 0" check. No need for "== 0" check because
"id == 0" is reserved for "void" which is not BTF_KIND_FUNC.
With that,
Acked-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
