From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 17 Sep 2013 11:58:12 +0000 (+0200)
Subject: MIPS: Provide nice way to access boot CPU's data.
X-Git-Tag: v3.12-rc2~15^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c5f66596313734cd7e95cc748d643d3b9ba2ca81;p=kernel%2Fkernel-generic.git

MIPS: Provide nice way to access boot CPU's data.

boot_cpu_data is used the same as current_cpu_data but returns the CPU
data for CPU 0.  This means it doesn't have to use smp_processor_id()
thus no need to disable preemption.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 41401d8..21c8e29 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -84,6 +84,7 @@ struct cpuinfo_mips {
 extern struct cpuinfo_mips cpu_data[];
 #define current_cpu_data cpu_data[smp_processor_id()]
 #define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
+#define boot_cpu_data cpu_data[0]
 
 extern void cpu_probe(void);
 extern void cpu_report(void);