netdev - Re: [PATCH] net: Add default_advmss() methods to blackhole dst

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Message-ID: <AANLkTi=8FXbL+Sew8EbE4uEvVXO=gNaWsRv-0RiO0JMj@mail.gmail.com>
Date:	Fri, 18 Feb 2011 15:43:37 +0200
From:	Daniel Baluta <dbaluta@...acom.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Changli Gao <xiaosuo@...il.com>,
	George Spelvin <linux@...izon.com>,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, netdev <netdev@...r.kernel.org>,
	Roland Dreier <roland@...estorage.com>
Subject: Re: [PATCH] net: Add default_advmss() methods to blackhole dst_ops

On Fri, Feb 18, 2011 at 3:33 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le vendredi 18 février 2011 à 21:29 +0800, Changli Gao a écrit :
>> On Fri, Feb 18, 2011 at 9:24 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
>> > 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

Perhaps a comment would make sense then.

thanks,
Daniel.
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