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Date: Tue, 10 Jan 2012 16:35:24 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: florian@...nwrt.org
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH 00/21] NET: use unique MDIO bus names
From: Florian Fainelli <florian@...nwrt.org>
Date: Tue, 10 Jan 2012 10:59:06 +0100
> While troubleshooting an issue with an user of the RDC r6040 driver
> having compiled support for the fixed MDIO bus, I noticed that quite
> some network drivers will have a MDIO bus named "0" most of the time.
>
> Some network drivers already try to provide an unique MDIO bus name
> using their PCI slot and function, this is okay.
>
> Some other network drivers will format the name using their platform_device
> id, which will usually result in a collision with the fixed MDIO bus
> name ("0"), these drivers are fixed to use the following pattern instead:
>
> <platform_device name>-<platform device id> which is unique
>
> Finally the MDIO bus drivers themselves are patched to use an unique name
> as well.
>
> There is a potential to break user-space applications assuming there is a
> specific MDIO bus named "0", "1" or other non-explanatory names like this.
>
> Note that I compile tested most of the drivers on x86 and MIPS, ARM and Blackfin
> drivers have not been compile tested.
All applied, thanks Florian.
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