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

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Message-ID: <20140716221823.GA3378@gup76>
Date:	Wed, 16 Jul 2014 15:18:23 -0700
From:	Zi Shen Lim <zlim.lnx@...il.com>
To:	Will Deacon <will.deacon@....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 05:21:47PM +0100, Will Deacon wrote:
> 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

Thanks :)

> comments but, rather than repeat myself for each patch, my main two gripes
> were:
> 
>   - The use of BUG_ON all over the place

I responded to your comment about BUG_ON in [1/14].

> 
>   - Explicit limit checks which could be done with masks

I responded to your comment about this in [8/14]. I can go ahead and
make changes throughout if you prefer.

> 
> 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?

Just pushed it to:

	https://github.com/zlim/linux.git arm64/bpf

which is the same as this RFCv3 series, i.e. I haven't rebased it on
latest net-next.

Thanks so much for your time and attention!
Let me know how it goes for you.

I can post this series (dropping RFC) once we finalized the above.

Cheers,
z

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