linux-kernel - Re: [PATCH v2 0/3] arm/arm64: Add support for function error injection

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Message-ID: <20190807160703.pe4jxak7hs7ptvde@willie-the-truck>
Date:   Wed, 7 Aug 2019 17:07:03 +0100
From:   Will Deacon <will@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Russell King <linux@...linux.org.uk>,
        Oleg Nesterov <oleg@...hat.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Arnd Bergmann <arnd@...db.de>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-arch@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH v2 0/3] arm/arm64: Add support for function error
 injection

On Tue, Aug 06, 2019 at 06:00:12PM +0800, Leo Yan wrote:
> This small patch set is to add support for function error injection;
> this can be used to eanble more advanced debugging feature, e.g.
> CONFIG_BPF_KPROBE_OVERRIDE.
> 
> The patch 01/03 is to consolidate the function definition which can be
> suared cross architectures, patches 02,03/03 are used for enabling
> function error injection on arm64 and arm architecture respectively.
> 
> I tested on arm64 platform Juno-r2 and one of my laptop with x86
> architecture with below steps; I don't test for Arm architecture so
> only pass compilation.

Thanks. I've queued the first two patches up here:

https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/error-injection

Will