netdev - RE: [PATCH net-next 4/4] net: dsa: lan9303: MDIO access phy registers directly

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Date:   Mon, 31 Jul 2017 11:44:15 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Florian Fainelli' <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Egil Hjelmeland <privat@...l-hjelmeland.no>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>
Subject: RE: [PATCH net-next 4/4] net: dsa: lan9303: MDIO access phy
 registers directly

From: Florian Fainelli
> Sent: 28 July 2017 18:05
...
> >>>> +EXPORT_SYMBOL(lan9303_indirect_phy_ops);
> >>>
> >>> Isn't EXPORT_SYMBOL_GPL prefered over EXPORT_SYMBOL?
> >>
> >> I have no opinion. I just used the same variant as the other EXPORTS
> >> in the file.
> >
> > If there is no concern from others about this, LGTM too:
> 
> Since the kernel module license is GPL, EXPORT_SYMBOL_GPL() would seem
> to be appropriate, which can be done as a subsequent patch.

It depends on whether the function needs to be usable by 'out of tree'
non-GPL modules.
This looks like a 'private' export between related modules.
The problems arise with functions like put_ns() and put_pid()
which can easily be needed by non-GPL code.

	David