powerpc/topology: Remove the unused parent_node() macro

Commit a7be6e5a7f8d ("mm: drop useless local parameters of
__register_one_node()") removes the last user of parent_node().

The parent_node() macro in POWERPC platform is unnecessary.

Remove it for cleanup.

Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index dc4e159..2d84bca 100644 (file)
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -16,8 +16,6 @@ struct device_node;
 
 #include <asm/mmzone.h>
 
-#define parent_node(node)      (node)
-
 #define cpumask_of_node(node) ((node) == -1 ?                          \
                               cpu_all_mask :                           \
                               node_to_cpumask_map[node])