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Message-ID: <AE90C24D6B3A694183C094C60CF0A2F6026B6FE4@saturn3.aculab.com>
Date: Mon, 10 Sep 2012 09:41:02 +0100
From: "David Laight" <David.Laight@...LAB.COM>
To: "Andi Kleen" <ak@...ux.intel.com>,
"George Bakos" <gbakos@...inista.org>,
<tcpdump-workers@...ts.tcpdump.org>
Cc: "Jay Schulist" <jschlst@...ba.org>, <netdev@...r.kernel.org>
Subject: RE: [tcpdump-workers] Modular arithmetic
> On Fri, Sep 07, 2012 at 07:49:10AM +0000, George Bakos wrote:
> > Gents,
> > Any fundamental reason why the following (, etc.) shouldn't be
> > included in net/core/filter.c?
> >
> > case BPF_S_ALU_MOD_X:
> > if (X == 0)
> > return 0;
> > A %= X;
> > continue;
>
> Copying netdev.
>
> In principle no reason against it, but you may need to update
> the various BPF JITs too that Linux now has too.
What about the other OS - eg all the BSDs?
I had a vague idea that BPF was supposed to be reasonable portable.
David (dsl@...bsd.org)
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