Re: [PATCH v6 4/4] mm/hwpoison: introduce per-memory_block hwpoison counter

[HORIGUCHI NAOYA(堀口 直也)]

On Fri, Oct 07, 2022 at 10:07:06AM +0900, Naoya Horiguchi wrote:
...
> diff --git a/drivers/base/memory.c b/drivers/base/memory.c
> index 9aa0da991cfb..5d00d8a14c79 100644
> --- a/drivers/base/memory.c
> +++ b/drivers/base/memory.c
> @@ -175,6 +175,17 @@ int memory_notify(unsigned long val, void *v)
>  	return blocking_notifier_call_chain(&memory_chain, val, v);
>  }
>  
> +#if defined(CONFIG_MEMORY_FAILURE) && defined(CONFIG_MEMORY_HOTPLUG)

> +void memblk_nr_poison_inc(unsigned long pfn);
> +void memblk_nr_poison_sub(unsigned long pfn, long i);

Sorry again, these prototypes should not be necessary. I'll remove these
when I need resubmit the patch series.

It seems that scripts/checkpatch.pl shows the following warning by these.

  WARNING: externs should be avoided in .c files
  #59: FILE: drivers/base/memory.c:180:
  +void memblk_nr_poison_sub(unsigned long pfn, long i);

This disappears by removing the prototypes.

Thanks,
Naoya Horiguchi