On Thu, Jun 17, 2021 at 10:20:59PM +0530, Aneesh Kumar K.V wrote:
> No functional change in this patch.
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>

Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>

> ---
>  arch/powerpc/mm/numa.c | 38 +++++++++++++++++++-------------------
>  1 file changed, 19 insertions(+), 19 deletions(-)
> 
> diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
> index f2bf98bdcea2..8365b298ec48 100644
> --- a/arch/powerpc/mm/numa.c
> +++ b/arch/powerpc/mm/numa.c
> @@ -51,7 +51,7 @@ EXPORT_SYMBOL(numa_cpu_lookup_table);
>  EXPORT_SYMBOL(node_to_cpumask_map);
>  EXPORT_SYMBOL(node_data);
>  
> -static int min_common_depth;
> +static int primary_domain_index;
>  static int n_mem_addr_cells, n_mem_size_cells;
>  static int form1_affinity;
>  
> @@ -232,8 +232,8 @@ static int associativity_to_nid(const __be32 
> *associativity)
>       if (!numa_enabled)
>               goto out;
>  
> -     if (of_read_number(associativity, 1) >= min_common_depth)
> -             nid = of_read_number(&associativity[min_common_depth], 1);
> +     if (of_read_number(associativity, 1) >= primary_domain_index)
> +             nid = of_read_number(&associativity[primary_domain_index], 1);
>  
>       /* POWER4 LPAR uses 0xffff as invalid node */
>       if (nid == 0xffff || nid >= nr_node_ids)
> @@ -284,9 +284,9 @@ int of_node_to_nid(struct device_node *device)
>  }
>  EXPORT_SYMBOL(of_node_to_nid);
>  
> -static int __init find_min_common_depth(void)
> +static int __init find_primary_domain_index(void)
>  {
> -     int depth;
> +     int index;
>       struct device_node *root;
>  
>       if (firmware_has_feature(FW_FEATURE_OPAL))
> @@ -326,7 +326,7 @@ static int __init find_min_common_depth(void)
>       }
>  
>       if (form1_affinity) {
> -             depth = of_read_number(distance_ref_points, 1);
> +             index = of_read_number(distance_ref_points, 1);
>       } else {
>               if (distance_ref_points_depth < 2) {
>                       printk(KERN_WARNING "NUMA: "
> @@ -334,7 +334,7 @@ static int __init find_min_common_depth(void)
>                       goto err;
>               }
>  
> -             depth = of_read_number(&distance_ref_points[1], 1);
> +             index = of_read_number(&distance_ref_points[1], 1);
>       }
>  
>       /*
> @@ -348,7 +348,7 @@ static int __init find_min_common_depth(void)
>       }
>  
>       of_node_put(root);
> -     return depth;
> +     return index;
>  
>  err:
>       of_node_put(root);
> @@ -437,16 +437,16 @@ int of_drconf_to_nid_single(struct drmem_lmb *lmb)
>       int nid = default_nid;
>       int rc, index;
>  
> -     if ((min_common_depth < 0) || !numa_enabled)
> +     if ((primary_domain_index < 0) || !numa_enabled)
>               return default_nid;
>  
>       rc = of_get_assoc_arrays(&aa);
>       if (rc)
>               return default_nid;
>  
> -     if (min_common_depth <= aa.array_sz &&
> +     if (primary_domain_index <= aa.array_sz &&
>           !(lmb->flags & DRCONF_MEM_AI_INVALID) && lmb->aa_index < 
> aa.n_arrays) {
> -             index = lmb->aa_index * aa.array_sz + min_common_depth - 1;
> +             index = lmb->aa_index * aa.array_sz + primary_domain_index - 1;
>               nid = of_read_number(&aa.arrays[index], 1);
>  
>               if (nid == 0xffff || nid >= nr_node_ids)
> @@ -708,18 +708,18 @@ static int __init parse_numa_properties(void)
>               return -1;
>       }
>  
> -     min_common_depth = find_min_common_depth();
> +     primary_domain_index = find_primary_domain_index();
>  
> -     if (min_common_depth < 0) {
> +     if (primary_domain_index < 0) {
>               /*
> -              * if we fail to parse min_common_depth from device tree
> +              * if we fail to parse primary_domain_index from device tree
>                * mark the numa disabled, boot with numa disabled.
>                */
>               numa_enabled = false;
> -             return min_common_depth;
> +             return primary_domain_index;
>       }
>  
> -     dbg("NUMA associativity depth for CPU/Memory: %d\n", min_common_depth);
> +     dbg("NUMA associativity depth for CPU/Memory: %d\n", 
> primary_domain_index);
>  
>       /*
>        * Even though we connect cpus to numa domains later in SMP
> @@ -919,14 +919,14 @@ static void __init find_possible_nodes(void)
>                       goto out;
>       }
>  
> -     max_nodes = of_read_number(&domains[min_common_depth], 1);
> +     max_nodes = of_read_number(&domains[primary_domain_index], 1);
>       for (i = 0; i < max_nodes; i++) {
>               if (!node_possible(i))
>                       node_set(i, node_possible_map);
>       }
>  
>       prop_length /= sizeof(int);
> -     if (prop_length > min_common_depth + 2)
> +     if (prop_length > primary_domain_index + 2)
>               coregroup_enabled = 1;
>  
>  out:
> @@ -1259,7 +1259,7 @@ int cpu_to_coregroup_id(int cpu)
>               goto out;
>  
>       index = of_read_number(associativity, 1);
> -     if (index > min_common_depth + 1)
> +     if (index > primary_domain_index + 1)
>               return of_read_number(&associativity[index - 1], 1);
>  
>  out:

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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