linux-kernel - Re: [PATCH v8 net-next 1/3] filter: add Extended BPF interpreter and converter

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Date:	Mon, 10 Mar 2014 22:39:10 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	hpa@...or.com
Cc:	torvalds@...ux-foundation.org, ast@...mgrid.com,
	dborkman@...hat.com, mingo@...nel.org, wad@...omium.org,
	rostedt@...dmis.org, a.p.zijlstra@...llo.nl, hagen@...u.net,
	jesse@...ira.com, tglx@...utronix.de, edumazet@...gle.com,
	akpm@...ux-foundation.org, fweisbec@...il.com, acme@...radead.org,
	penberg@....fi, arjan@...radead.org, hch@...radead.org,
	xemul@...allels.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v8 net-next 1/3] filter: add Extended BPF interpreter
 and converter

From: "H. Peter Anvin" <hpa@...or.com>
Date: Mon, 10 Mar 2014 19:33:03 -0700

> Why not for variables? It makes a lot of sense of nothing else to
> avoid the confusion that invariably happens when someone decides to
> introduce the value 2 or -1 to an existing variable (and yes, thus
> has happened a number of times.)
> 
> Not to mention they take a single byte rather than four for an int if stored in memory.

No objection :)
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