linux-kernel - [PATCH] x86, msr: Unify variable names

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Date:	Mon, 21 Jan 2013 14:11:51 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>
Subject: [PATCH] x86, msr: Unify variable names

From: Borislav Petkov <bp@...e.de>

Make sure all MSR-accessing primitives which split MSR values in
two 32-bit parts have their variables called 'low' and 'high' for
consistence with the rest of the code and for ease of staring.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/include/asm/msr.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 9264802e2824..cb7502852acb 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -137,11 +137,11 @@ static inline unsigned long long native_read_pmc(int counter)
  * pointer indirection), this allows gcc to optimize better
  */
 
-#define rdmsr(msr, val1, val2)					\
+#define rdmsr(msr, low, high)					\
 do {								\
 	u64 __val = native_read_msr((msr));			\
-	(void)((val1) = (u32)__val);				\
-	(void)((val2) = (u32)(__val >> 32));			\
+	(void)((low) = (u32)__val);				\
+	(void)((high) = (u32)(__val >> 32));			\
 } while (0)
 
 static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
@@ -162,12 +162,12 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high)
 }
 
 /* rdmsr with exception handling */
-#define rdmsr_safe(msr, p1, p2)					\
+#define rdmsr_safe(msr, low, high)				\
 ({								\
 	int __err;						\
 	u64 __val = native_read_msr_safe((msr), &__err);	\
-	(*p1) = (u32)__val;					\
-	(*p2) = (u32)(__val >> 32);				\
+	(*low) = (u32)__val;					\
+	(*high) = (u32)(__val >> 32);				\
 	__err;							\
 })
 
@@ -208,7 +208,7 @@ do {                                                            \
 #define wrmsrl_safe(msr, val) wrmsr_safe((msr), (u32)(val),		\
 					     (u32)((val) >> 32))
 
-#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
+#define write_tsc(low, high) wrmsr(MSR_IA32_TSC, (low), (high))
 
 #define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
 
-- 
1.8.1.rc3

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