Re: [PATCH bpf-next v1 08/10] bpf: Add bpf_task_work_schedule_* kfuncs with KF_IMPLICIT_ARGS

[Alexei Starovoitov]

On Fri, Jan 9, 2026 at 10:50 AM Ihor Solodrai <ihor.solodrai@xxxxxxxxx> wrote:
>
> +__bpf_kfunc int bpf_task_work_schedule_signal(struct task_struct *task, struct bpf_task_work *tw,
> +                                             void *map__map, bpf_task_work_callback_t callback,
> +                                             struct bpf_prog_aux *aux)
> +{
> +       return bpf_task_work_schedule(task, tw, map__map, callback, aux, TWA_SIGNAL);
> +}
> +
>  __bpf_kfunc int bpf_task_work_schedule_signal_impl(struct task_struct *task,
>                                                    struct bpf_task_work *tw, void *map__map,
>                                                    bpf_task_work_callback_t callback,
>                                                    void *aux__prog)
>  {
> -       return bpf_task_work_schedule(task, tw, map__map, callback, aux__prog, TWA_SIGNAL);
> +       return bpf_task_work_schedule_signal(task, tw, map__map, callback, aux__prog);
>  }

I thought we decided that _impl() will not be marked as __bpf_kfunc
and will not be in BTF_ID(func, _impl).
We can mark it as __weak noinline and it will be in kallsyms.
That's all we need for the verifier and resolve_btfid, no?

Sorry, it's been a long time. I must have forgotten something.