Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756793Ab1BRNYN (ORCPT ); Fri, 18 Feb 2011 08:24:13 -0500 Received: from mail-fx0-f46.google.com ([209.85.161.46]:64434 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753428Ab1BRNYK (ORCPT ); Fri, 18 Feb 2011 08:24:10 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=uN9LKat/4sjG2xNonFZ9e6KvZy82VKNLz7efQk91MOfYFMTbSUy5novXhz+sOiIE7p 8+HS0i3sHejnYUYNmkKCJXWB+Un0Pir24elqW7eoHCMYBaLOC4NP0Mao7dmfC8RbQlIk 2uZXeq/iW6VVZm5pGZh49PGXe9Cid5cdUiJ88= Subject: Re: [PATCH] net: Add default_advmss() methods to blackhole dst_ops From: Eric Dumazet To: Changli Gao Cc: George Spelvin , David Miller , linux-kernel@vger.kernel.org, netdev , Roland Dreier In-Reply-To: References: <20110218050321.10415.qmail@science.horizon.com> <1298010735.2642.9.camel@edumazet-laptop> <1298023023.2595.170.camel@edumazet-laptop> Content-Type: text/plain; charset="UTF-8" Date: Fri, 18 Feb 2011 14:24:03 +0100 Message-ID: <1298035443.6201.51.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 548 Lines: 18 Le vendredi 18 février 2011 à 21:16 +0800, Changli Gao a écrit : > I am wondering why magic number 256 is used here. Is there a special > reason? Thanks. > It really doesnt matter. SYN message will be dropped anyway. 256 happens to be the default value of /proc/sys/net/ipv4/route/min_adv_mss -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/