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Date:   Mon, 11 May 2020 13:55:08 +0100
From:   Will Deacon <>
To:     Luke Nelson <>,
Cc:, Will Deacon <>,
        Thomas Gleixner <>,
        Christoffer Dall <>,,
        Andrii Nakryiko <>,
        Zi Shen Lim <>,
        Alexei Starovoitov <>,
        John Fastabend <>,
        Marc Zyngier <>,
        Mark Rutland <>,
        Ard Biesheuvel <>,
        Luke Nelson <>,
        Song Liu <>,
        Martin KaFai Lau <>,
        Daniel Borkmann <>,
        KP Singh <>,,, Xi Wang <>,
        Yonghong Song <>,,
        Alexios Zavras <>
Subject: Re: [PATCH bpf-next v2 0/3] arm64 BPF JIT Optimizations

On Fri, 8 May 2020 11:15:43 -0700, Luke Nelson wrote:
> This patch series introduces several optimizations to the arm64 BPF JIT.
> The optimizations make use of arm64 immediate instructions to avoid
> loading BPF immediates to temporary registers, when possible.
> In the process, we discovered two bugs in the logical immediate encoding
> function in arch/arm64/kernel/insn.c using Serval. The series also fixes
> the two bugs before introducing the optimizations.
> [...]

Applied to arm64 (for-next/bpf), thanks!

[1/3] arm64: insn: Fix two bugs in encoding 32-bit logical immediates
[2/3] bpf, arm64: Optimize AND,OR,XOR,JSET BPF_K using arm64 logical immediates
[3/3] bpf, arm64: Optimize ADD,SUB,JMP BPF_K using arm64 add/sub immediates


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