From a7be6e5a7f8da433065b23f98ff68f445113080a Mon Sep 17 00:00:00 2001
From: Dou Liyang <douly.fnst@cn.fujitsu.com>
Date: Mon, 10 Jul 2017 15:49:20 -0700
Subject: [PATCH] mm: drop useless local parameters of __register_one_node()
__register_one_node() initializes local parameters "p_node" & "parent"
for register_node().
But, register_node() does not use them.
Remove the related code of "parent" node, cleanup __register_one_node()
and register_node().
Link: http://lkml.kernel.org/r/1498013846-20149-1-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/base/node.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 73d39bc58c42..d8dc83017d8d 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -288,7 +288,7 @@ static void node_device_release(struct device *dev)
*
* Initialize and register the node device.
*/
-static int register_node(struct node *node, int num, struct node *parent)
+static int register_node(struct node *node, int num)
{
int error;
@@ -567,19 +567,14 @@ static void init_node_hugetlb_work(int nid) { }
int __register_one_node(int nid)
{
- int p_node = parent_node(nid);
- struct node *parent = NULL;
int error;
int cpu;
- if (p_node != nid)
- parent = node_devices[p_node];
-
node_devices[nid] = kzalloc(sizeof(struct node), GFP_KERNEL);
if (!node_devices[nid])
return -ENOMEM;
- error = register_node(node_devices[nid], nid, parent);
+ error = register_node(node_devices[nid], nid);
/* link cpu under this node */
for_each_present_cpu(cpu) {
--
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