powerpc: Convert cpu_to_l2cache() to of_find_next_cache_node()

The smp code uses cache information to populate cpu_core_map; change
it to use common code for cache lookup.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 4 insertions, 7 deletions

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index ffcb1779a220..8ac3f721d235 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -466,8 +466,7 @@ out:
 static struct device_node *cpu_to_l2cache(int cpu)
 {
         struct device_node *np;
-        const phandle *php;
-        phandle ph;
+        struct device_node *cache;
 
         if (!cpu_present(cpu))
                 return NULL;
@@ -476,13 +475,11 @@ static struct device_node *cpu_to_l2cache(int cpu)
         if (np == NULL)
                 return NULL;
 
-        php = of_get_property(np, "l2-cache", NULL);
-        if (php == NULL)
-                return NULL;
-        ph = *php;
+        cache = of_find_next_cache_node(np);
+
         of_node_put(np);
 
-        return of_find_node_by_phandle(ph);
+        return cache;
 }
 
 /* Activate a secondary processor. */