netdev - Re: [PATCH 1/6] phylib: add mdiobus

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Date:	Mon, 29 Sep 2008 13:27:11 -0700 (PDT)
From:	Trent Piepho <tpiepho@...escale.com>
To:	Lennert Buytenhek <buytenh@...tstofly.org>
cc:	netdev@...r.kernel.org, Byron Bradley <byron.bbradley@...il.com>,
	Jesper Dangaard Brouer <jdb@...x.dk>,
	Tim Ellis <tim.ellis@....com>,
	Andy Fleming <afleming@...escale.com>,
	Imre Kaloz <kaloz@...nwrt.org>, Nicolas Pitre <nico@....org>,
	Dirk Teurlings <dirk@...xia.nl>,
	Peter van Valderen <p.v.valderen@...il.com>
Subject: Re: [PATCH 1/6] phylib: add mdiobus_{read,write}

On Mon, 29 Sep 2008, Lennert Buytenhek wrote:
> Add mdiobus_{read,write} routines to allow direct reading/writing
> of registers on an mii bus without having to go through the PHY
> abstraction, and make phy_{read,write} use these primitives.
>
> int phy_read(struct phy_device *phydev, u16 regnum)
> {
> -	int retval;
> -	struct mii_bus *bus = phydev->bus;
> -
> -	BUG_ON(in_interrupt());
> -
> -	mutex_lock(&bus->mdio_lock);
> -	retval = bus->read(bus, phydev->addr, regnum);
> -	mutex_unlock(&bus->mdio_lock);
> -
> -	return retval;
> +	return mdiobus_read(phydev->bus, phydev->addr, regnum);
> }
> EXPORT_SYMBOL(phy_read);

Might want to make these function static inline.  Since they are external, gcc
won't be able to inline them automatically.
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