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Date:   Thu, 17 Sep 2020 14:03:32 -0700
From:   Andrii Nakryiko <>
To:     Maciej Fijalkowski <>
Cc:     Alexei Starovoitov <>,
        Daniel Borkmann <>,
        bpf <>, Networking <>,
        Björn Töpel <>,
        Magnus Karlsson <>
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
<> 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 <>
> ---


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?


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