Re: Build Fails on 2.6.24-rc6-mm1[drivers/net/iseries_veth.ko] linking error

From: Sam Ravnborg
Date: Wed Jan 09 2008 - 14:15:29 EST


On Wed, Jan 09, 2008 at 03:44:04PM +0530, Sudhir Kumar wrote:
> Hi Andrew,
> Build fails on my Power Machine with following error message.
>
>
> HOSTLD arch/powerpc/boot/dtc
> WRAP arch/powerpc/boot/zImage.pseries
> WRAP arch/powerpc/boot/zImage.pmac
> strip -s -R .comment vmlinux -o arch/powerpc/boot/zImage.iseries
> Building modules, stage 2.
> MODPOST 264 modules
> ERROR: ".driver_add_kobj" [drivers/net/iseries_veth.ko] undefined!
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2

driver_add_kobj has a single user - iseries_veth. It is even documented
in the comment in the file.
And you build iseries_veth as a module but driver_add_kobj is not exported
which is why you get this modpost error.

Workaround: make the driver built-in
Fix: export driver_add_kobj or replace usage in iseries_veth.

Sam
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