Re: [PATCH bpf-next v2 3/8] bpf, iter: Fix the condition on p when calling stop.

Hao Luo
2022-06-21T07:25:55Z

On Mon, Jun 20, 2022 at 11:48 AM Yonghong Song <yhs@fb.com> wrote:
>
> On 6/10/22 12:44 PM, Yosry Ahmed wrote:
> > From: Hao Luo <haoluo@google.com>
> >
> > In bpf_seq_read, seq->op->next() could return an ERR and jump to
> > the label stop. However, the existing code in stop does not handle
> > the case when p (returned from next()) is an ERR. Adds the handling
> > of ERR of p by converting p into an error and jumping to done.
> >
> > Because all the current implementations do not have a case that
> > returns ERR from next(), so this patch doesn't have behavior changes
> > right now.
> >
> > Signed-off-by: Hao Luo <haoluo@google.com>
> > Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
>
> Acked-by: Yonghong Song <yhs@fb.com>

Yonghong, do you want to get this change in now, or you want to wait
for the whole patchset? This fix is straightforward and independent of
other parts. Yosry and I can rebase.