On Fri, Mar 12, 2021 at 1:26 AM Andrew Lunn andrew@lunn.ch wrote:

On Wed, Mar 10, 2021 at 09:31:07PM +0100, Markus Elfring wrote:

...

Hello,

I would like to build the Linux version “5.11.5” for my needs. But I stumbled on the following information.

… AR drivers/built-in.a LD [M] drivers/visorbus/visorbus.o GEN .version CHK include/generated/compile.h error: the following would cause module name conflict: drivers/net/mdio/of_mdio.ko drivers/of/of_mdio.ko

Hi Markus

Something wrong here. There should not be any of_mdio.ko in drivers/of. That was the whole point of the patch you referenced, it moved this file to drivers/net/mdio/. Please check where your drivers/of/of_mdio.ko comes from. Has there been a bad merge conflict resolution? Or is it left over from an older build?

Andrew

modules.order may include both drivers/of/of_mdio.ko and drivers/net/mdio/of_mdio.c

But, I do not know how this could happen.

I checked out 14b26b127c098bba^, and built modules with CONFIG_OF_MDIO=m. Then, I checked out 14b26b127c098bba and rebuilt.

I did not see such an error.

I also checked the Kbuild code, and it looks good too.

Please let me know if you find steps to reproduce it.

-- Best Regards Masahiro Yamada