netdev - Re: [PATCH RFCv3 00/14] arm64: eBPF JIT compiler

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Message-ID: <20140716162146.GV29414@arm.com>
Date:	Wed, 16 Jul 2014 17:21:47 +0100
From:	Will Deacon <will.deacon@....com>
To:	Zi Shen Lim <zlim.lnx@...il.com>
Cc:	Catalin Marinas <Catalin.Marinas@....com>,
	Jiang Liu <liuj97@...il.com>,
	AKASHI Takahiro <takahiro.akashi@...aro.org>,
	"David S. Miller" <davem@...emloft.net>,
	Daniel Borkmann <dborkman@...hat.com>,
	Alexei Starovoitov <ast@...mgrid.com>,
	Chema Gonzalez <chema@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH RFCv3 00/14] arm64: eBPF JIT compiler

On Wed, Jul 16, 2014 at 11:41:53AM +0100, Will Deacon wrote:
> On Tue, Jul 15, 2014 at 07:24:58AM +0100, Zi Shen Lim wrote:
> > This series implements eBPF JIT compiler for arm64.
> > See [14/14] for change log.
> > 
> > Patches [1-13/14] implement code generation functions.
> 
> Nice work, I'll take a look. Thanks!

... and it all looks pretty damn good to me. I gave you a few in-line
comments but, rather than repeat myself for each patch, my main two gripes
were:

  - The use of BUG_ON all over the place

  - Explicit limit checks which could be done with masks

If you address those, this stuff looks pretty much ready to go from my
perspective. Do you have a branch somewhere I can play with please?

Cheers,

Will
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