netdev - Re: [PATCH net-next v5 1/2] ethtool: add speed/duplex validation functions

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Date:	Wed, 3 Feb 2016 15:49:04 -0800
From:	Rick Jones <rick.jones2@....com>
To:	Stephen Hemminger <stephen@...workplumber.org>,
	Nikolay Aleksandrov <razor@...ckwall.org>
Cc:	netdev@...r.kernel.org, mst@...hat.com, roopa@...ulusnetworks.com,
	davem@...emloft.net,
	Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Subject: Re: [PATCH net-next v5 1/2] ethtool: add speed/duplex validation
 functions

On 02/03/2016 03:32 PM, Stephen Hemminger wrote:

> But why check for valid value at all. At some point in the
> future, there will be yet another speed adopted by some standard body
> and the switch statement would need another value.
>
> Why not accept any value? This is a virtual device.
>

And even for not-quite-virtual devices - such as a VC/FlexNIC in an HPE 
blade server there can be just about any speed set.  I think we went 
down a path of patching some things to address that many years ago.  It 
would be a shame to undo that.

rick