linux-kernel - Re: [PATCH v6] arm64: implement ftrace with regs

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Message-ID: <20190117154821.GC9094@lst.de>
Date:   Thu, 17 Jan 2019 16:48:21 +0100
From:   Torsten Duwe <duwe@....de>
To:     Julien Thierry <julien.thierry@....com>
Cc:     Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        AKASHI Takahiro <takahiro.akashi@...aro.org>,
        Amit Daniel Kachhap <amit.kachhap@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        live-patching@...r.kernel.org
Subject: Re: [PATCH v6] arm64: implement ftrace with regs

On Wed, Jan 16, 2019 at 09:57:39AM +0000, Julien Thierry wrote:
> 
> I wanted to test this patch (and try to benchmark having the "mov x9,
> x30" always present in function prelude vs having two nops), but I
> cannot get this patch to apply (despite having a version including both
> commits below).
> 
> Could you provide a git branch from which I could try to rebase the
> patch? (Or a new version of the series)

It also applies with just a single, harmless fuzz 1 onto 5.0-rc2.
Does that help?

I'm currently over v7, with Mark's requests included and the mov patching
done only once at bootup...

	Torsten