linux-kernel - Re: [PATCH 1/2] arm64: bpf: fix JIT frame pointer setup

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Message-ID: <CABg9mctFoXuttJkGaqOBWm-beDKzui_Fwhj4u+iBBWPXAFsYwQ@mail.gmail.com>
Date:	Thu, 12 Nov 2015 19:21:13 -0800
From:	Z Lim <zlim.lnx@...il.com>
To:	Yang Shi <yang.shi@...aro.org>
Cc:	Alexei Starovoitov <ast@...nel.org>, daniel@...earbox.net,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>, Xi Wang <xi.wang@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 1/2] arm64: bpf: fix JIT frame pointer setup

On Thu, Nov 12, 2015 at 1:57 PM, Yang Shi <yang.shi@...aro.org> wrote:
> BPF fp should point to the top of the BPF prog stack. The original
> implementation made it point to the bottom incorrectly.
> Move A64_SP to fp before reserve BPF prog stack space.
>
> CC: Zi Shen Lim <zlim.lnx@...il.com>
> CC: Xi Wang <xi.wang@...il.com>
> Signed-off-by: Yang Shi <yang.shi@...aro.org>
> ---

Reviewed-by: Zi Shen Lim <zlim.lnx@...il.com>

Also,

Fixes: e54bcde3d69d ("arm64: eBPF JIT compiler")
Cc: <stable@...r.kernel.org> # 3.18+
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