powerpc/cacheinfo: Make cpumap_show code reusable

In anticipation of implementing shared_cpu_list, move code under
shared_cpu_map_show() to a common function.

No functional changes.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200629103703.4538-3-srikar@linux.vnet.ibm.com

diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index 0d3c45e..5be870f 100644 (file)
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -647,7 +647,8 @@ static const struct cpumask *get_big_core_shared_cpu_map(int cpu, struct cache *
        return &cache->shared_cpu_map;
 }
 
-static ssize_t shared_cpu_map_show(struct kobject *k, struct kobj_attribute *attr, char *buf)
+static ssize_t
+show_shared_cpumap(struct kobject *k, struct kobj_attribute *attr, char *buf, bool list)
 {
        struct cache_index_dir *index;
        struct cache *cache;
@@ -664,7 +665,12 @@ static ssize_t shared_cpu_map_show(struct kobject *k, struct kobj_attribute *att
                mask  = &cache->shared_cpu_map;
        }
 
-       return cpumap_print_to_pagebuf(false, buf, mask);
+       return cpumap_print_to_pagebuf(list, buf, mask);
+}
+
+static ssize_t shared_cpu_map_show(struct kobject *k, struct kobj_attribute *attr, char *buf)
+{
+       return show_shared_cpumap(k, attr, buf, false)
 }
 
 static struct kobj_attribute cache_shared_cpu_map_attr =