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Date:   Thu, 28 Mar 2019 11:52:56 -0700
From:   Jakub Kicinski <jakub.kicinski@netronome.com>
To:     Jiri Pirko <jiri@resnulli.us>
Cc:     Michal Kubecek <mkubecek@suse.cz>,
        Florian Fainelli <f.fainelli@gmail.com>,
        David Miller <davem@davemloft.net>, netdev@vger.kernel.org,
        Andrew Lunn <andrew@lunn.ch>,
        John Linville <linville@tuxdriver.com>,
        Stephen Hemminger <stephen@networkplumber.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v5 12/22] ethtool: provide string sets with
 GET_STRSET request
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        <20190328134313.GO14297@nanopsycho>
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On Thu, 28 Mar 2019 18:35:24 +0100, Jiri Pirko wrote:
> Thu, Mar 28, 2019 at 03:04:28PM CET, mkubecek@suse.cz wrote:
> >On Thu, Mar 28, 2019 at 02:43:13PM +0100, Jiri Pirko wrote:  
> >> 
> >> I don't like this. This should not be bitfield/set. This should be
> >> simply nested array of enum values:
> >> 
> >> enum ethtool_link_mode {
> >> 	ETHTOOL_LINK_MODE_10baseT_Half,
> >> 	ETHTOOL_LINK_MODE_10baseT_Full,
> >> 	ETHTOOL_LINK_MODE_100baseT_Half,
> >> 	ETHTOOL_LINK_MODE_100baseT_Full,
> >> 	ETHTOOL_LINK_MODE_1000baseT_Full,
> >> };  
> >
> >We already have such enum. The problem with your "no string" approach is
> >that it requires all userspace applications to (1) keep this enum in  
> 
> That is how it is usually done. UAPI defines ATTRS and values, userspace
> assigns appropriate strings.

+1 FWIW, I'm with Jiri on the string situation.