linux-kernel - Re: [PATCH bpf-next] bpf, arm64: Fix compile error in dummy

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Date:   Thu, 21 Jul 2022 22:30:14 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Xu Kuohai <xukuohai@...weicloud.com>
Cc:     bpf@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, ast@...nel.org, andrii@...nel.org,
        catalin.marinas@....com, daniel@...earbox.net, haoluo@...gle.com,
        jakub@...udflare.com, jean-philippe@...aro.org, jolsa@...nel.org,
        john.fastabend@...il.com, jonathanh@...dia.com, kpsingh@...nel.org,
        martin.lau@...ux.dev, song@...nel.org, sdf@...gle.com,
        will@...nel.org, yhs@...com, zlim.lnx@...il.com
Subject: Re: [PATCH bpf-next] bpf, arm64: Fix compile error in dummy_tramp()

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@...earbox.net>:

On Thu, 21 Jul 2022 08:13:19 -0400 you wrote:
> From: Xu Kuohai <xukuohai@...wei.com>
> 
> dummy_tramp() uses "lr" to refer to the x30 register, but some assembler
> does not recognize "lr" and reports a build failure:
> 
> /tmp/cc52xO0c.s: Assembler messages:
> /tmp/cc52xO0c.s:8: Error: operand 1 should be an integer register -- `mov lr,x9'
> /tmp/cc52xO0c.s:7: Error: undefined symbol lr used as an immediate value
> make[2]: *** [scripts/Makefile.build:250: arch/arm64/net/bpf_jit_comp.o] Error 1
> make[1]: *** [scripts/Makefile.build:525: arch/arm64/net] Error 2
> 
> [...]

Here is the summary with links:
  - [bpf-next] bpf, arm64: Fix compile error in dummy_tramp()
    https://git.kernel.org/bpf/bpf-next/c/339ed900b307

You are awesome, thank you!
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