[PATCH v4 12/14] arm64/numa: remove some useless code

From: Zhen Lei <thunder.leizhen@huawei.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>,
	Robert Richter <rrichter@cavium.com>,
	David Daney <david.daney@cavium.com>,
	Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Grant Likely <grant.likely@linaro.org>,
	devicetree <devicetree@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Cc: Xinwei Hu <huxinwei@huawei.com>,
	Zhen Lei <thunder.leizhen@huawei.com>,
	Zefan Li <lizefan@huawei.com>, Hanjun Guo <guohanjun@huawei.com>,
	Tianhong Ding <dingtianhong@huawei.com>
Subject: [PATCH v4 12/14] arm64/numa: remove some useless code
Date: Tue, 7 Jun 2016 16:08:16 +0800	[thread overview]
Message-ID: <1465286898-13828-13-git-send-email-thunder.leizhen@huawei.com> (raw)
In-Reply-To: <1465286898-13828-1-git-send-email-thunder.leizhen@huawei.com>

1. Currently only cpu0 set on cpu_possible_mask and percpu areas have not
   been initialized.
2. No reason to limit cpu0 must belongs to node0.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 arch/arm64/mm/numa.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index d73b0a0..92b1692 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -93,7 +93,6 @@ void numa_clear_node(unsigned int cpu)
  */
 static void __init setup_node_to_cpumask_map(void)
 {
-	unsigned int cpu;
 	int node;

 	/* setup nr_node_ids if not done yet */
@@ -106,9 +105,6 @@ static void __init setup_node_to_cpumask_map(void)
 		cpumask_clear(node_to_cpumask_map[node]);
 	}

-	for_each_possible_cpu(cpu)
-		set_cpu_numa_node(cpu, NUMA_NO_NODE);
-
 	/* cpumask_of_node() will now work */
 	pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids);
 }
@@ -379,10 +375,6 @@ static int __init numa_init(int (*init_func)(void))

 	setup_node_to_cpumask_map();

-	/* init boot processor */
-	cpu_to_node_map[0] = 0;
-	map_cpu_to_node(0, 0);
-
 	return 0;
 }

--
2.5.0
