netdev - Re: [Linux-stm32] [PATCH] net: stmmac: platform: Fix MDIO init for platforms without PHY

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Date:   Mon, 13 Jan 2020 15:19:20 +0200
From:   "Leonidas P. Papadakos" <papadakospan@...il.com>
To:     patrice.chotard@...com
Cc:     Jose.Abreu@...opsys.com, davem@...emloft.net, f.fainelli@...il.com,
        heiko@...ech.de, jayati.sahu@...sung.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com, netdev@...r.kernel.org,
        p.rajanbabu@...sung.com, pankaj.dubey@...sung.com,
        peppe.cavallaro@...com, rcsekar@...sung.com,
        sriram.dash@...sung.com, stable@...r.kernel.org
Subject: Re: [Linux-stm32] [PATCH] net: stmmac: platform: Fix MDIO init for platforms without PHY

This change affects my Renegade board (rockchip/rk3328-roc-cc.dtb),
(and probably the very similar Rock64) preventing me from using any kernel after
5.4.6 in a meaningful way.

I get the stacktrace mentioned before at boot.

Predictably, a command like 'ip address show' will hang since it probes 
networking but 'sudo' also freezes...