netdev - Re: [PATCH v13 bpf-next 10/10] selftests/bpf: tests for using dynptrs to parse skb and xdp buffers

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Date:   Wed, 1 Mar 2023 10:43:05 -0800
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Joanne Koong <joannelkoong@...il.com>, bpf <bpf@...r.kernel.org>,
        Martin KaFai Lau <martin.lau@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Network Development <netdev@...r.kernel.org>,
        Toke Høiland-Jørgensen <toke@...nel.org>
Subject: Re: [PATCH v13 bpf-next 10/10] selftests/bpf: tests for using dynptrs
 to parse skb and xdp buffers

On Wed, Mar 1, 2023 at 10:08 AM Alexei Starovoitov
<alexei.starovoitov@...il.com> wrote:
>
> On Wed, Mar 1, 2023 at 7:51 AM Joanne Koong <joannelkoong@...il.com> wrote:
> >
> > 5) progs/dynptr_success.c
> >    * Add test case "test_skb_readonly" for testing attempts at writes
> >      on a prog type with read-only skb ctx.
> >    * Add "test_dynptr_skb_data" for testing that bpf_dynptr_data isn't
> >      supported for skb progs.
>
> I added
> +dynptr/test_dynptr_skb_data
> +dynptr/test_skb_readonly
> to DENYLIST.s390x and applied.
>
> Thank you so much for all the hard work to make it happen.
> Great milestone!

Yep, a lot of iterators work is made much easier thanks to the
foundations laid by your (Joanne's) dynptr work. Thank you!