Subject: Re: [PATCH] powerpc: Remove modpost warning with start_secondary

From: Nathan Lynch <[email-masked]>
Date: Tue, 2 Dec 2008 23:31:18 -0600

Kumar Gala wrote:
> WARNING: vmlinux.o(.text+0x2aa): Section mismatch in reference from the variable __secondary_start to the function .devinit.text:start_secondary()
> The function __secondary_start() references
> the function __devinit start_secondary().
> 
> start_secondary gets called by __secondary_start which is in asm code so its
> not marked as __devinit.  Its easier to just remove the __devinit from
> start_secondary than try and deal with __secondary_start.

Which just gets another mismatch warning here:

WARNING: arch/powerpc/kernel/built-in.o(.text+0x23cc4): Section mismatch in reference from the function .start_secondary() to the function .devinit.text:.smp_store_cpu_info()
The function .start_secondary() references
the function __devinit .smp_store_cpu_info().
This is often because .start_secondary lacks a __devinit 
annotation or the annotation of .smp_store_cpu_info is wrong.

Isn't there a better way to address this?  It doesn't seem right to
increase the kernel's memory usage to get rid of a modpost warning.