[PATCH 5/5] powerpc/64s: Fix CONFIG_NUMA=n build

[Arnd Bergmann]

On Thu, Nov 30, 2023, at 07:43, Michael Ellerman wrote:
> "Arnd Bergmann" <arnd at arndb.de> writes:
>> On Wed, Nov 29, 2023, at 14:19, Michael Ellerman wrote:
>>> diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
>>> index 7f9ff0640124..72341b9fb552 100644
>>> --- a/arch/powerpc/mm/mmu_decl.h
>>> +++ b/arch/powerpc/mm/mmu_decl.h
>>> +
>>> +#ifdef CONFIG_MEMORY_HOTPLUG
>>> +int create_section_mapping(unsigned long start, unsigned long end,
>>> +			   int nid, pgprot_t prot);
>>> +#endif
>>
>> This one should probably go next to the remove_section_mapping()
>> declaration in arch/powerpc/include/asm/sparsemem.h for consistency.
> 
> That doesn't work due to:
>
> In file included from ../include/linux/numa.h:26,
>                  from ../include/linux/async.h:13,
>                  from ../init/initramfs.c:3:
> ../arch/powerpc/include/asm/sparsemem.h:19:44: error: unknown type name 
> ‘pgprot_t’
>    19 |                                   int nid, pgprot_t prot);
>       |                                            ^~~~~~~~
>
> Which might be fixable, but I'd rather just move
> remove_section_mapping() into mmu_decl.h as well.

Ok, makes sense.

     Arnd