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Message-Id: <20200724114418.629021-3-mingo@kernel.org>
Date: Fri, 24 Jul 2020 13:44:17 +0200
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Borislav Petkov <bp@...en8.de>
Subject: [PATCH 2/3] x86/tsc: Remove unused "US_SCALE" and "NS_SCALE" leftover macros
Last use of them was removed 13 years ago, when the code was converted
to use CYC2NS_SCALE_FACTOR:
53d517cdbaac: ("x86: scale cyc_2_nsec according to CPU frequency")
The current TSC code uses the 'struct cyc2ns_data' scaling abstraction,
the old fixed scaling approach is long gone.
This cleanup also removes the 'arbitralrily' typo from the comment,
so win-win. ;-)
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
---
arch/x86/include/asm/tsc.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index 8a0c25c6bf09..b7b2624fba86 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -7,9 +7,6 @@
#include <asm/processor.h>
-#define NS_SCALE 10 /* 2^10, carefully chosen */
-#define US_SCALE 32 /* 2^32, arbitralrily chosen */
-
/*
* Standard way to access the cycle counter.
*/
--
2.25.1
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