netdev - Re: [PATCH v8 bpf-next 6/7] bpf: allow for tailcalls in BPF subprograms for x64 JIT

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Message-ID: <CAEf4Bza908+c__590SK+_39fUuk51+O2oQnLzGNZ8jyjib5yzw@mail.gmail.com>
Date:   Thu, 17 Sep 2020 14:03:32 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Björn Töpel <bjorn.topel@...el.com>,
        Magnus Karlsson <magnus.karlsson@...el.com>
Subject: Re: [PATCH v8 bpf-next 6/7] bpf: allow for tailcalls in BPF
 subprograms for x64 JIT

On Wed, Sep 16, 2020 at 3:54 PM Maciej Fijalkowski
<maciej.fijalkowski@...el.com> wrote:
>
> Relax verifier's restriction that was meant to forbid tailcall usage
> when subprog count was higher than 1.
>
> Also, do not max out the stack depth of program that utilizes tailcalls.
>
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
> ---

Maciej,

Only patches 6 and 7 arrived (a while ago) and seems like the other
patches are lost and not going to come. Do you mind resending entire
patch set?

[...]