On 2014?01?24? 00:15, Catalin Marinas wrote:

On Fri, Jan 17, 2014 at 12:24:56PM +0000, Hanjun Guo wrote:

quoted

ACPI requires a cpu.h, add a dummy one copied from arm. This will need
updated or replaced as ACPI based cpu hotplug or cpu topology for armv8
is worked out.

Signed-off-by: Graeme Gregory <redacted>
Signed-off-by: Hanjun Guo <redacted>
---
  arch/arm64/include/asm/cpu.h |   25 +++++++++++++++++++++++++
  1 file changed, 25 insertions(+)
  create mode 100644 arch/arm64/include/asm/cpu.h

diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
new file mode 100644
index 0000000..8625eb1
--- /dev/null
+++ b/arch/arm64/include/asm/cpu.h

@@ -0,0 +1,25 @@
+/*
+ *  Copyright (C) 2004-2005 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARM_CPU_H
+#define __ASM_ARM_CPU_H
+
+#include <linux/percpu.h>
+#include <linux/cpu.h>
+#include <linux/topology.h>
+
+struct cpuinfo_arm {
+	struct cpu	cpu;
+	u64		cpuid;
+#ifdef CONFIG_SMP
+	unsigned int	loops_per_jiffy;
+#endif
+};
+
+DECLARE_PER_CPU(struct cpuinfo_arm, cpu_data);
+
+#endif

Could you not leave this file empty until you add the code that actually
makes use of cpu_data?

Of course, I will update in next version :)

Thanks
Hanjun