linux-kernel - Re: [REGRESSION][PATCH] bpf_jit drops the ball on indirect negative mem references

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Message-ID: <1333116493.2325.2125.camel@edumazet-glaptop>
Date:	Fri, 30 Mar 2012 16:08:13 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jan Seiffert <kaffeemonster@...glemail.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Matt Evans <matt@...abs.org>
Subject: Re: [REGRESSION][PATCH] bpf_jit drops the ball on indirect
 negative mem references

On Fri, 2012-03-30 at 15:42 +0200, Jan Seiffert wrote:

> Do you know where i can ping the powerpc guys a little bit harder?

maybe using CC linux-arch@...r.kernel.org

One way to handle that would be to split this patch in 3 parts, so that
I can Ack the non ppc part.

[1] introduce bpf_internal_load_pointer_neg_helper()
	[BTW no need to EXPORT_SYMBOL it, since jit is not a module ]

[2] x86_bpf_iit: handle negative offsets in loads

[3] ppc_bpf_jit: handle negative offsets in loads



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