linux-kernel - Re: [PATCH net-next 5/7] net: lan743x: Add support to the Phylink framework

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Message-ID: <ZLpyjNJsQjOw2hfj@shell.armlinux.org.uk>
Date:   Fri, 21 Jul 2023 12:57:00 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        linux-kernel@...r.kernel.org, bryan.whitehead@...rochip.com,
        andrew@...n.ch, UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH net-next 5/7] net: lan743x: Add support to the Phylink
 framework

On Fri, Jul 21, 2023 at 09:49:06AM +0100, Russell King (Oracle) wrote:
> On Fri, Jul 21, 2023 at 11:30:17AM +0530, Raju Lakkaraju wrote:
> > +static void lan743x_phylink_mac_config(struct phylink_config *config,
> > +				       unsigned int link_an_mode,
> > +				       const struct phylink_link_state *state)
> > +{
> > +	struct net_device *netdev = to_net_dev(config->dev);
> > +	struct lan743x_adapter *adapter = netdev_priv(netdev);
> > +	bool status;
> > +	int ret;
> > +
> > +	lan743x_mac_cfg_update(adapter, state->link, state->speed,
> > +			       state->advertising);
> 
> Please, no new state->speed users in mac_config().

I have just submitted a patch series that results in state->speed always
being set to SPEED_UNKNOWN when this function is called to prevent
future uses of this struct member.

> > +	adapter->phylink_config.dev = &netdev->dev;
> > +	adapter->phylink_config.type = PHYLINK_NETDEV;
> > +	adapter->phylink_config.mac_managed_pm = true;
> > +	/* This driver makes use of state->speed in mac_config */
> > +	adapter->phylink_config.legacy_pre_march2020 = true;
> 
> Sorry, but no new users of legacy features.

... and which totally strips out the legacy phylink code, which I've
been wanting to remove for the last three years.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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