linux-kernel - [PATCH 06/11] s390/topology: Remove the unused parent

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Date:   Wed, 26 Jul 2017 21:34:31 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <mpe@...erman.id.au>, Dou Liyang <douly.fnst@...fujitsu.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Michael Holzheu <holzheu@...ux.vnet.ibm.com>,
        <linux-s390@...r.kernel.org>
Subject: [PATCH 06/11] s390/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 S390 platform is unnecessary.

Remove it for cleanup.

Reported-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Michael Holzheu <holzheu@...ux.vnet.ibm.com>
Cc: linux-s390@...r.kernel.org
---
 arch/s390/include/asm/topology.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index fa1bfce..5222da1 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -77,12 +77,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
 	return &node_to_cpumask_map[node];
 }
 
-/*
- * Returns the number of the node containing node 'node'. This
- * architecture is flat, so it is a pretty simple function!
- */
-#define parent_node(node) (node)
-
 #define pcibus_to_node(bus) __pcibus_to_node(bus)
 
 #define node_distance(a, b) __node_distance(a, b)
-- 
2.5.5