linux-kernel - Re: [net-next PATCH v2 1/3] device property: Introduce phy related fwnode functions

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Message-ID: <20200427134137.GF25745@shell.armlinux.org.uk>
Date:   Mon, 27 Apr 2020 14:41:37 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Calvin Johnson <calvin.johnson@....nxp.com>
Cc:     linux.cj@...il.com, Jeremy Linton <jeremy.linton@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Cristi Sovaiala <cristian.sovaiala@....com>,
        Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Madalin Bucur <madalin.bucur@....nxp.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
        Diana Madalina Craciun <diana.craciun@....com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        linux-acpi@...r.kernel.org, Marcin Wojtas <mw@...ihalf.com>,
        Makarand Pawagi <makarand.pawagi@....com>,
        "Rajesh V . Bikkina" <rajesh.bikkina@....com>,
        Varun Sethi <V.Sethi@....com>, linux-kernel@...r.kernel.org,
        Pankaj Bansal <pankaj.bansal@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [net-next PATCH v2 1/3] device property: Introduce phy related
 fwnode functions

On Mon, Apr 27, 2020 at 06:54:07PM +0530, Calvin Johnson wrote:
> +/**
> + * device_phy_find_device - For the given device, get the phy_device
> + * @dev: Pointer to the given device
> + *
> + * If successful, returns a pointer to the phy_device with the embedded
> + * struct device refcount incremented by one, or NULL on failure.

It probably makes sense to refer the reader to the return conditions
for fwnode_phy_find_device() so that should fwnode_phy_find_device()
be updated, there's no need to modify multiple locations.

> + */
> +struct phy_device *device_phy_find_device(struct device *dev)
> +{
> +	return fwnode_phy_find_device(dev_fwnode(dev));
> +}
> +EXPORT_SYMBOL_GPL(device_phy_find_device);
> +
> +/**
> + * fwnode_get_phy_node - Get the phy_node using the named reference.
> + * @fwnode: Pointer to fwnode from which phy_node has to be obtained.
> + *
> + * Returns pointer to the phy fwnode, or ERR_PTR. Caller is responsible to
> + * call fwnode_handle_put() on the returned phy fwnode pointer.

This one even more so - fwnode_find_reference() is in an entirely
separate file, so the comment could well be missed.

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