linux-kernel - Re: [PATCH bpf-next v2] arm64,bpf: Support struct arguments in the BPF trampoline

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Message-Id: <168417841990.1340.9887886289072485201.git-patchwork-notify@kernel.org>
Date:   Mon, 15 May 2023 19:20:19 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Florent Revest <revest@...omium.org>
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, kpsingh@...nel.org,
        mark.rutland@....com, xukuohai@...weicloud.com, zlim.lnx@...il.com,
        yhs@...a.com, yhs@...com
Subject: Re: [PATCH bpf-next v2] arm64,bpf: Support struct arguments in the BPF
 trampoline

Hello:

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

On Thu, 11 May 2023 16:05:07 +0200 you wrote:
> This extends the BPF trampoline JIT to support attachment to functions
> that take small structures (up to 128bit) as argument. This is trivially
> achieved by saving/restoring a number of "argument registers" rather
> than a number of arguments.
> 
> The AAPCS64 section 6.8.2 describes the parameter passing ABI.
> "Composite types" (like C structs) below 16 bytes (as enforced by the
> BPF verifier) are provided as part of the 8 argument registers as
> explained in the section C.12.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] arm64,bpf: Support struct arguments in the BPF trampoline
    https://git.kernel.org/bpf/bpf-next/c/90564f1e3dd6

You are awesome, thank you!
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