netdev - Re: [RFC PATCH net-next v2 10/17] ethtool: implement GET

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 30 Jul 2018 20:54:55 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Michal Kubecek <mkubecek@...e.cz>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiri Pirko <jiri@...nulli.us>,
        David Miller <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        Jakub Kicinski <kubakici@...pl>,
        "John W. Linville" <linville@...driver.com>
Subject: Re: [RFC PATCH net-next v2 10/17] ethtool: implement GET_SETTINGS
 message

> +/* Internal kernel helper to query a device ethtool_link_settings.
> + *
> + * Backward compatibility note: for compatibility with legacy drivers
> + * that implement only the ethtool_cmd API, this has to work with both
> + * drivers implementing get_link_ksettings API and drivers
> + * implementing get_settings API. When drivers implement get_settings
> + * and report ethtool_cmd deprecated fields
> + * (transceiver/maxrxpkt/maxtxpkt), these fields are silently ignored
> + * because the resulting struct ethtool_link_settings does not report them.

~/linux/drivers$ grep -r [.]get_settings *
net/ethernet/8390/etherh.c:		 .get_settings	= etherh_get_settings,

I don't think it is worth adding support for .get_settings for just
one driver. It is better to just convert that driver to the new API.

    Andrew