Re: [PATCH bpf-next v5 2/9] bpf: add struct_ops_tab to btf.

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On 10/18/23 19:28, Martin KaFai Lau wrote:
On 10/17/23 9:22 AM, thinker.li@xxxxxxxxx wrote:
+const struct bpf_struct_ops **btf_get_struct_ops(struct btf *btf, u32 *ret_cnt)
+{
+    if (!btf)
+        return NULL;
+    if (!btf->struct_ops_tab)
+        return NULL;
+
+    *ret_cnt = btf->struct_ops_tab->cnt;
+    return (const struct bpf_struct_ops **)btf->struct_ops_tab->ops;

Is it possible that the module is already gone here? If that is the case, the st_ops pointer probably cannot be used?
The callers should call bpf_try_get_module() before calling this function. I will check the code to ensure all callers do that in
the next version.




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