linux-kernel - Re: [PATCH net-next v10 08/13] ptp: Add phc source and helpers to register specific PTP clock or get information

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Date: Sun, 14 Apr 2024 07:33:15 +0200
From: Kory Maincent <kory.maincent@...tlin.com>
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>
Cc: Florian Fainelli <florian.fainelli@...adcom.com>, Broadcom internal
 kernel review list <bcm-kernel-feedback-list@...adcom.com>, Andrew Lunn
 <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>, Russell King
 <linux@...linux.org.uk>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.com>, Richard Cochran <richardcochran@...il.com>, Radu
 Pirea <radu-nicolae.pirea@....nxp.com>, Jay Vosburgh
 <j.vosburgh@...il.com>, Andy Gospodarek <andy@...yhouse.net>, Nicolas Ferre
 <nicolas.ferre@...rochip.com>, Claudiu Beznea <claudiu.beznea@...on.dev>,
 Jonathan Corbet <corbet@....net>, Horatiu Vultur
 <horatiu.vultur@...rochip.com>, UNGLinuxDriver@...rochip.com, Simon Horman
 <horms@...nel.org>, Vladimir Oltean <vladimir.oltean@....com>, Thomas
 Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, Maxime Chevallier
 <maxime.chevallier@...tlin.com>, Rahul Rameshbabu <rrameshbabu@...dia.com>
Subject: Re: [PATCH net-next v10 08/13] ptp: Add phc source and helpers to
 register specific PTP clock or get information

On Wed, 10 Apr 2024 23:00:53 -0400
Willem de Bruijn <willemdebruijn.kernel@...il.com> wrote:

> > +/**
> > + * netdev_ptp_clock_register() - register a PTP hardware clock driver for
> > + *				 a net device
> > + *
> > + * @info: Structure describing the new clock.
> > + * @dev:  Pointer of the net device
> > + */
> > +
> > +extern struct ptp_clock *
> > +netdev_ptp_clock_register(struct ptp_clock_info *info,
> > +			  struct net_device *dev);  
> 
> No need for explicit extern?

Indeed I don't think it is needed.
I am wondering why few other functions uses it (ptp_clock_register,
ptp_clock_event, ptp_clock_index). Do you know?

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com