linux-kernel - Re: [RFC 04/11] net: phy: Handle c22 regs presence better

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Message-ID: <20200525230618.GE768009@lunn.ch>
Date:   Tue, 26 May 2020 01:06:18 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        netdev@...r.kernel.org, davem@...emloft.net, f.fainelli@...il.com,
        hkallweit1@...il.com, madalin.bucur@....nxp.com,
        calvin.johnson@....nxp.com, linux-kernel@...r.kernel.org
Subject: Re: [RFC 04/11] net: phy: Handle c22 regs presence better

> I know for sure we find phys that previously weren't found.

That is in itself somewhat dangerous. Those using primitive
configuration systems are probably going to use phy_find_first(),
rather than an address on the bus.  I always recommend against that,
because if another PHY suddenly pops up on the bus, bad things can
happen.

   Andrew