Re: [PATCH V2 bpf-next] bpf: export btf_find_by_name_kind and bpf_base_func_proto

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On Tue, Jul 30, 2024 at 5:07 AM Martin KaFai Lau <martin.lau@xxxxxxxxx> wrote:
>
> On 7/26/24 5:59 AM, Ming Lei wrote:
> > Almost all existed struct_ops users(hid, sched_ext, ...) need the two APIs.
> >
> > In-tree hid-bpf code(drivers/hid/bpf/hid_bpf_struct_ops.c) can't be built
> > as module because the two APIs aren't exported.
>
> The patch looks fine. I don't see "config HID_BPF" can be built as a module now
> though that could expose this issue. Did I miss something?

Yeah, this patch doesn't try to change HID_BPF yet, and it can be thought
as one struct_ops module prep patch.

The issue itself is observed when I write ublk-bpf since ublk is one module
and struct_ops is allowed to be registered in the module.

Thanks,
Ming






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