netdev - Re: [PATCH net-next v2 3/6] ethtool: fec: sanitize ethtool

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Message-ID: <YF3Qy/QdaSBzXOE1@lunn.ch>
Date:   Fri, 26 Mar 2021 13:17:15 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        ecree.xilinx@...il.com, michael.chan@...adcom.com,
        paul.greenwalt@...el.com, rajur@...lsio.com,
        jaroslawx.gawin@...el.com, vkochan@...vell.com, alobakin@...me,
        snelson@...sando.io, shayagr@...zon.com, ayal@...dia.com,
        shenjian15@...wei.com, saeedm@...dia.com, mkubecek@...e.cz,
        roopa@...dia.com
Subject: Re: [PATCH net-next v2 3/6] ethtool: fec: sanitize
 ethtool_fecparam->reserved

On Thu, Mar 25, 2021 at 07:07:24PM -0700, Jakub Kicinski wrote:
> struct ethtool_fecparam::reserved is never looked at by the core.
> Make sure it's actually 0. Unfortunately we can't return an error
> because old ethtool doesn't zero-initialize the structure for SET.
> On GET we can be more verbose, there are no in tree (ab)users.
> 
> Fix up the kdoc on the structure. Remove the mention of FEC
> bypass. Seems like a niche thing to configure in the first
> place.
> 
> v2: - also mention the zero-init-on-SET kerfuffle in kdoc
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew