linux-kernel - Re: [PATCH 1/1] arm64: Remove stack duplicating code from jprobes

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Message-ID: <57AC2977.40507@arm.com>
Date:	Thu, 11 Aug 2016 08:29:59 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	David Long <dave.long@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Huang Shijie <shijie.huang@....com>,
	James Morse <james.morse@....com>,
	Pratyush Anand <panand@...hat.com>,
	Sandeepa Prabhu <sandeepa.s.prabhu@...il.com>,
	Will Deacon <will.deacon@....com>,
	William Cohen <wcohen@...hat.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Steve Capper <steve.capper@...aro.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Li Bin <huawei.libin@...wei.com>
Cc:	Adam Buchbinder <adam.buchbinder@...il.com>,
	Alex Bennée <alex.bennee@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Christoffer Dall <christoffer.dall@...aro.org>,
	Daniel Thompson <daniel.thompson@...aro.org>,
	Dave P Martin <Dave.Martin@....com>,
	Jens Wiklander <jens.wiklander@...aro.org>,
	Jisheng Zhang <jszhang@...vell.com>,
	John Blackwood <john.blackwood@...r.com>,
	Mark Rutland <mark.rutland@....com>,
	Petr Mladek <pmladek@...e.com>,
	Robin Murphy <robin.murphy@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Vladimir Murzin <Vladimir.Murzin@....com>,
	Yang Shi <yang.shi@...aro.org>,
	Zi Shen Lim <zlim.lnx@...il.com>,
	yalin wang <yalin.wang2010@...il.com>,
	Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH 1/1] arm64: Remove stack duplicating code from jprobes

On 10/08/16 21:44, David Long wrote:
> From: "David A. Long" <dave.long@...aro.org>
> 
> Because the arm64 calling standard allows stacked function arguments to be
> anywhere in the stack frame, do not attempt to duplicate the stack frame for
> jprobes handler functions.
> 
> Documenation changes to describe this issue have been broken out into a

nit: "Documentation"

> separate patch in order to simultaneously address them in other
> architecture(s).
> 
> Signed-off-by: David A. Long <dave.long@...aro.org>
> Acked-by: Masami Hiramatsu <mhiramat@...nel.org>

Acked-by: Marc Zyngier <marc.zyngier@....com>

	M.
-- 
Jazz is not dead. It just smells funny...