linux-kernel - RE: [PATCH bpf-next v4 03/11] bpf: x86: Factor out a lookup table for some ALU opcodes

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Message-ID: <5fce99e440d06_5a962088e@john-XPS-13-9370.notmuch>
Date:   Mon, 07 Dec 2020 13:08:52 -0800
From:   John Fastabend <john.fastabend@...il.com>
To:     Brendan Jackman <jackmanb@...gle.com>, bpf@...r.kernel.org
Cc:     Alexei Starovoitov <ast@...nel.org>, Yonghong Song <yhs@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        KP Singh <kpsingh@...omium.org>,
        Florent Revest <revest@...omium.org>,
        linux-kernel@...r.kernel.org, Jann Horn <jannh@...gle.com>,
        Brendan Jackman <jackmanb@...gle.com>
Subject: RE: [PATCH bpf-next v4 03/11] bpf: x86: Factor out a lookup table for
 some ALU opcodes

Brendan Jackman wrote:
> A later commit will need to lookup a subset of these opcodes. To
> avoid duplicating code, pull out a table.
> 
> The shift opcodes won't be needed by that later commit, but they're
> already duplicated, so fold them into the table anyway.
> 
> Signed-off-by: Brendan Jackman <jackmanb@...gle.com>
> ---

Acked-byy: John Fastabend <john.fastabend@...il.com>