include/asm-generic/topology.h: remove unused parent_node() macro

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

The parent_node() macro in generic situation is unnecessary.

Remove it for cleanup.

Link: http://lkml.kernel.org/r/1504234599-29533-8-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/asm-generic/topology.h b/include/asm-generic/topology.h
index 5d2add1a6c964870b212f848879338f7b9b3ba18..2388737395502101e308ec7c77b51b7f422dc194 100644 (file)
--- a/include/asm-generic/topology.h
+++ b/include/asm-generic/topology.h
@@ -44,9 +44,6 @@
 #define cpu_to_mem(cpu)                ((void)(cpu),0)
 #endif
 
 #define cpu_to_mem(cpu)                ((void)(cpu),0)
 #endif
 

-#ifndef parent_node
-#define parent_node(node)      ((void)(node),0)
-#endif

 #ifndef cpumask_of_node
   #ifdef CONFIG_NEED_MULTIPLE_NODES
     #define cpumask_of_node(node)      ((node) == 0 ? cpu_online_mask : cpu_none_mask)
 #ifndef cpumask_of_node
   #ifdef CONFIG_NEED_MULTIPLE_NODES
     #define cpumask_of_node(node)      ((node) == 0 ? cpu_online_mask : cpu_none_mask)