netdev - Re: [PATCH 001/001] ipv4: enable use of 240/4 address space

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Message-ID: <20080118002859.GA10947@cisco.com>
Date:	Thu, 17 Jan 2008 16:28:59 -0800
From:	Vince Fuller <vaf@...co.com>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	Vince Fuller <vaf@...co.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 001/001] ipv4: enable use of 240/4 address space

On Fri, Jan 18, 2008 at 12:04:06AM +0100, Jan Engelhardt wrote:
> 
> On Jan 7 2008 17:10, Vince Fuller wrote:
> >--- net/ipv4/devinet.c.orig	2007-04-12 10:16:23.000000000 -0700
> >+++ net/ipv4/devinet.c	2008-01-07 16:55:59.000000000 -0800
> >@@ -594,6 +594,8 @@ static __inline__ int inet_abc_len(__be3
> > 			rc = 16;
> > 		else if (IN_CLASSC(haddr))
> > 			rc = 24;
> >+		else if (IN_CLASSE(haddr))
> >+			rc = 24;
> > 	}
> > 
> >   	return rc;
> 
> Any particular reason why 24?

Using the same default as old-style "class-C" seemed to be the most expedient
thing to do.

In normal practice, the mask should be explicitly configured so this case
should not be frequently encountered.

	--Vince
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