linux-kernel - Re: [PATCH net 4/4] lib/test_bpf: Add additional BPF

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Message-ID: <5703E7B2.6050706@fb.com>
Date:	Tue, 5 Apr 2016 09:28:34 -0700
From:	Alexei Starovoitov <ast@...com>
To:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
	<linux-kernel@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<netdev@...r.kernel.org>
CC:	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH net 4/4] lib/test_bpf: Add additional BPF_ADD tests

On 4/5/16 3:02 AM, Naveen N. Rao wrote:
> Some of these tests proved useful with the powerpc eBPF JIT port due to
> sign-extended 16-bit immediate loads. Though some of these aspects get
> covered in other tests, it is better to have explicit tests so as to
> quickly tag the precise problem.
>
> Cc: Alexei Starovoitov <ast@...com>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Paul Mackerras <paulus@...ba.org>
> Signed-off-by: Naveen N. Rao <naveen.n.rao@...ux.vnet.ibm.com>

Makes sense. Looks like ppc jit will be using quite a bit of
available ppc instructions. Nice.

I'm assuming all these new tests passed with x64 jit?

Acked-by: Alexei Starovoitov <ast@...nel.org>