From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: [PATCH] IPROUTE: tc correct error message
Date: Mon, 13 Oct 2008 07:00:27 -0700
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This warning message was removed in change 
083a5f00a15f6506815b0da2be82e7be761c5cbc
In this patch is checked, whether warning should be printed. Output
of "tc filter <type> help" isn't spoiled after my change.
-- 


Actually, protocol is not required. It defaults to all.
But I did go ahead and make help just return.