Re: [PATCH v2] mm/sparse.c: mark populate_section_memmap as __meminit

[David Hildenbrand]

On 30.10.19 16:16, Ilya Leoshkevich wrote:
> Building the kernel on s390 with -Og produces the following warning:
>
> WARNING: vmlinux.o(.text+0x28dabe): Section mismatch in reference from the function populate_section_memmap() to the function .meminit.text:__populate_section_memmap()
> The function populate_section_memmap() references
> the function __meminit __populate_section_memmap().
> This is often because populate_section_memmap lacks a __meminit
> annotation or the annotation of __populate_section_memmap is wrong.
>
> While -Og is not supported, in theory this might still happen with
> another compiler or on another architecture. So fix this by using the
> correct section annotations.
>
> Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
> ---
>
> v1 -> v2: Do not touch mm/sparse.c version of __populate_section_memmap:
> its __init annotation is correct, since it is only called during init
> phase (by sparse_init_nid), and contains the call to another __init
> function. Spotted by kbuild test robot <lkp@xxxxxxxxx> and Oscar
> Salvador <osalvador@xxxxxxx>.
>
> I was notified that v1 has already been included into
> http://ozlabs.org/~akpm/mmots/broken-out. Since this is not a git
> repository, I've decided to send a v2 instead of the fix. Please let me
> know if I should send a fix instead.

That's fine, Andrew will simply replace the patch.

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--

Thanks,

David / dhildenb