Re: [bpf-next v6 2/5] bpf: Pass bpf_verifier_env to jit

[Xu Kuohai]

On 3/7/2026 3:22 PM, Yeoreum Yun wrote:
> Hi,
>
> > On 3/7/2026 2:40 PM, Yeoreum Yun wrote:
> > > Hi,
> > >
> > > [...]
> > >
> > > > -struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
> > > > +struct bpf_prog *bpf_int_jit_compile(struct bpf_verifier_env *env, struct bpf_prog *prog)
> > >
> > > Does this also work for bpf_prepare_filter()?
> > > For example, ptp_classifier_init() calls it without invoking bpf_check(),
> > > so there is no env available in that context.
> >
> > It works. The original bpf_prog_select_runtime() is preserved for
> > cbpf and test code, and passes NULL env to bpf_int_jit_compile().
>
> Yes, I agree it work with the NULL when I see you patch but
> I mean I couldn't find out modification in bpf_prepare_filter()
> -- bpf_jit_compile(fp) -> bpf_jit_compile(NULL, fp)

bpf_jit_compile() is the old cbpf jit, no modification is required.

> > > [...]
> > >
> > > Thanks.
> > >
> > > --
> > > Sincerely,
> > > Yeoreum Yun
>
> --
> Sincerely,
> Yeoreum Yun