netdev - RE: [PATCH net-next v2 2/3] net: add trim helper and convert users

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Date:	Fri, 17 Jan 2014 09:52:58 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'Hannes Frederic Sowa' <hannes@...essinduktion.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:	Daniel Borkmann <dborkman@...hat.com>,
	Jakub Zawadzki <darkjames-ws@...kjames.pl>,
	Eric Dumazet <eric.dumazet@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH net-next v2 2/3] net: add trim helper and convert users

From: Hannes Frederic Sowa
...
> +/**
> + * trim - perform a reciprocal multiplication in order to "clamp" a
> + *        value into range [0, ep_ro), where the upper interval
> + *        endpoint is right-open. This is useful, e.g. for accessing
> + *        a index of an array containing ep_ro elements, for example.
> + *        Think of it as sort of modulus, only that the result isn't
> + *        that of modulo. ;)
> + *        More: http://homepage.cs.uiowa.edu/~jones/bcd/divide.html

It isn't appropriate to put urls into code comments (or commit messages).
They are very likely to get out of date.

	David



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