netdev - Re: [PATCH 2/2] net: lpc_eth: parse phy nodes from device tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 15 Oct 2019 17:22:27 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     alexandre.belloni@...tlin.com
Cc:     vz@...ia.com, slemieux.tyco@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] net: lpc_eth: parse phy nodes from device tree

From: Alexandre Belloni <alexandre.belloni@...tlin.com>
Date: Thu, 10 Oct 2019 22:45:30 +0200

> When connected to a micrel phy, phy_find_first doesn't work properly
> because the first phy found is on address 0, the broadcast address but, the
> first thing the phy driver is doing is disabling this broadcast address.
> The phy is then available only on address 1 but the mdio driver doesn't
> know about it.
> 
> Instead, register the mdio bus using of_mdiobus_register and try to find
> the phy description in device tree before falling back to phy_find_first.
> 
> This ultimately also allows to describe the interrupt the phy is connected
> to.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

Please respond to Andrew's feedback.