netdev - Re: [PATCH net-next 05/15] ethtool: set netdev features with FEATURES

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Message-ID: <20200312094532.GM8012@unicorn.suse.cz>
Date:   Thu, 12 Mar 2020 10:45:32 +0100
From:   Michal Kubecek <mkubecek@...e.cz>
To:     netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Jiri Pirko <jiri@...nulli.us>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        John Linville <linville@...driver.com>,
        Johannes Berg <johannes@...solutions.net>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 05/15] ethtool: set netdev features with
 FEATURES_SET request

On Wed, Mar 11, 2020 at 03:56:32PM -0700, Jakub Kicinski wrote:
> On Wed, 11 Mar 2020 22:40:28 +0100 (CET) Michal Kubecek wrote:
> > +	if (!(req_info.flags & ETHTOOL_FLAG_OMIT_REPLY)) {
> > +		bool compact = req_info.flags & ETHTOOL_FLAG_COMPACT_BITSETS;
> 
> is req_info->flags validated anywhere to make sure users get an error
> when they set a bit unrecognized by the kernel? :S

It's not and it it definitely should be. As this also affects code which
is already in mainline, I'll send a patch with the check for net tree.

Michal