2.6.25: pmac_newworld undefined

[Sam Ravnborg]

On Mon, Apr 28, 2008 at 02:20:44PM +1000, Tony Breeds wrote:
> On Sun, Apr 27, 2008 at 08:03:46PM +0200, Christian Kujau wrote:
> > Hi,
> > 
> > the build failure reported[0] by Kamalesh back in 01/2008 is still 
> > present in today's 2.6.25-git with CONFIG_NVRAM=m (instead of =y):
> > 
> >   Building modules, stage 2.
> >   MODPOST 72 modules
> > ERROR: "pmac_newworld" [arch/powerpc/platforms/powermac/nvram.ko] undefined!
> > ERROR: "__alloc_bootmem" [arch/powerpc/platforms/powermac/nvram.ko] 
> > undefined!
> > make[1]: *** [__modpost] Error 1
> 
> Yeah that isn't really surprising.  Essentially
> arch/powerpc/platforms/powermac/nvram.c must be builtin (not modular)
> but CONFIG_NVRAM is tristate, and your .config has CONFIG_NVRAM=m.
> 
> We can probably "fix" this by adding another config config symbol and
> "selecting" that from CONFIG_NVRAM.  Then using this new symbol in
> arch/powerpc/platforms/powermac/*
> 
> so I think with we need is:
> config NVRAM
>   bool "..." if PPC32
>   tristate "..." if !PPC32
>   ...
>   ...
> 
> Sam is there some way to achieve that or should we just create an
> secondary symbol?

In the Makefile you could just do a:

obj-$(CONFIG_NVRAM:m=y)             += nvram.o

Then you would force nvram to be build-in.
That looks simpler than messing with Kconfig in this case.

	Sam