Re: [PATCH] mm: Drop elements 'hw' and 'phys_callback' from struct memory_block

From: Dan Williams
Date: Thu Dec 19 2019 - 00:19:39 EST


On Wed, Dec 18, 2019 at 8:10 PM Anshuman Khandual
<anshuman.khandual@xxxxxxx> wrote:
>
> memory_block structure elements 'hw' and 'phys_callback' are not getting
> used. This was originally added with commit 3947be1969a9 ("[PATCH] memory
> hotplug: sysfs and add/remove functions") but never seem to have been used.
> Just drop them now.
>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: David Hildenbrand <david@xxxxxxxxxx>
> Cc: Michal Hocko <mhocko@xxxxxxxx>
> Cc: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
> ---
> include/linux/memory.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/include/linux/memory.h b/include/linux/memory.h
> index 0ebb105eb261..4e95a9eb8061 100644
> --- a/include/linux/memory.h
> +++ b/include/linux/memory.h
> @@ -29,8 +29,6 @@ struct memory_block {
> int section_count; /* serialized by mem_sysfs_mutex */
> int online_type; /* for passing data to online routine */
> int phys_device; /* to which fru does this belong? */
> - void *hw; /* optional pointer to fw/hw data */
> - int (*phys_callback)(struct memory_block *);
> struct device dev;
> int nid; /* NID for this memory block */
> };
> --
> 2.20.1

Looks good.

Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>