Re: [PATCH bpf v3 2/3] bpf: Do not mark NULL-checked raw_tp arg as scalar

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On Fri, 6 Dec 2024 at 19:37, Alexei Starovoitov
<alexei.starovoitov@xxxxxxxxx> wrote:
>
> On Fri, Dec 6, 2024 at 10:11 AM Kumar Kartikeya Dwivedi
> <memxor@xxxxxxxxx> wrote:
> > > I think we need to revert the raw_tp masking hack and
> > > go with denylist the way Jiri proposed:
> > > https://lore.kernel.org/bpf/ZrIj9jkXqpKXRuS7@krava/
>
> ...
>
> > Jiri, do you have the diff around for that attempt? Could you post a
> > revert of the patches and then the diff you shared?
>
> the link above.

The link only has information about one tracepoint, but further down
the thread Jiri found more examples and the case of IS_ERR.
https://lore.kernel.org/bpf/Zr3q8ihbe8cUdpfp@krava
It would probably be good to add all of them? Or did I misunderstand
and you just add PTR_MAYBE_NULL for the scheduler tracepoint in the
report?





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