linux-kernel - Re: [Patch] infiniband: check local reserved ports

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Message-ID: <ada1vcmpyvu.fsf@roland-alpha.cisco.com>
Date:	Fri, 04 Jun 2010 09:04:53 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Cong Wang <amwang@...hat.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	davem@...emloft.net, linux-rdma@...r.kernel.org,
	sean.hefty@...el.com
Subject: Re: [Patch] infiniband: check local reserved ports

 > > Should this inet_is_reserved_local_port() test apply to all the "port
 > > spaces" that this code is handling?  I honestly am ignorant of the
 > > intended semantics of the new local_reserved_ports stuff, hence my question.

 > Yes, but I only found this case, is there any else?

My question was more in the other direction: should this test apply to
all the "port spaces" handled here?  From looking at the code, it
appears the answer is yes -- it seems that putting a port in
local_reserved_ports reserves that port for IPv4 and IPv6, UDP, TCP,
SCTP, DCCP, everything, so we should probably reserve all RDMA CM ports too.
-- 
Roland Dreier <rolandd@...co.com> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
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