Subject: Re: [PATCH v2 1/4] powerpc/drmem: Make lmb_size 64 bit

From: Nathan Lynch <[email-masked]>
Date: Thu, 20 Aug 2020 15:10:59 -0500

"Aneesh Kumar K.V" <[email-masked]> writes:
> Similar to commit 89c140bbaeee ("pseries: Fix 64 bit logical memory block panic")
> make sure different variables tracking lmb_size are updated to be 64 bit.
>
> This was found by code audit.
>
> Cc: [email-masked]
> Signed-off-by: Aneesh Kumar K.V <[email-masked]>
> ---
>  arch/powerpc/include/asm/drmem.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/drmem.h b/arch/powerpc/include/asm/drmem.h
> index 17ccc6474ab6..d719cbac34b2 100644
> --- a/arch/powerpc/include/asm/drmem.h
> +++ b/arch/powerpc/include/asm/drmem.h
> @@ -21,7 +21,7 @@ struct drmem_lmb {
>  struct drmem_lmb_info {
>  	struct drmem_lmb        *lmbs;
>  	int                     n_lmbs;
> -	u32                     lmb_size;
> +	u64                     lmb_size;
>  };
>  
>  extern struct drmem_lmb_info *drmem_info;
> @@ -67,7 +67,7 @@ struct of_drconf_cell_v2 {
>  #define DRCONF_MEM_RESERVED	0x00000080
>  #define DRCONF_MEM_HOTREMOVABLE	0x00000100
>  
> -static inline u32 drmem_lmb_size(void)
> +static inline u64 drmem_lmb_size(void)
>  {
>  	return drmem_info->lmb_size;
>  }

Looks fine.
Acked-by: Nathan Lynch <[email-masked]>