linux-kernel - [tip:perf/core] perf/x86: Remove old MSR perf tracing code

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Date:	Fri, 4 Dec 2015 04:00:01 -0800
From:	tip-bot for Andi Kleen <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	vincent.weaver@...ne.edu, eranian@...gle.com, efault@....de,
	ak@...ux.intel.com, mingo@...nel.org, tglx@...utronix.de,
	peterz@...radead.org, hpa@...or.com, jolsa@...hat.com,
	acme@...hat.com
Subject: [tip:perf/core] perf/x86: Remove old MSR perf tracing code

Commit-ID:  23147ce9aca551931f8f17bb520b370df884f918
Gitweb:     http://git.kernel.org/tip/23147ce9aca551931f8f17bb520b370df884f918
Author:     Andi Kleen <ak@...ux.intel.com>
AuthorDate: Tue, 1 Dec 2015 17:01:00 -0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 4 Dec 2015 10:58:35 +0100

perf/x86: Remove old MSR perf tracing code

Now that we have generic MSR trace points we can remove the old
hackish perf MSR read tracing code.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: rostedt@...dmis.org
Link: http://lkml.kernel.org/r/1449018060-1742-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/cpu/perf_event.h | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 910928f..ce8768f 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -14,17 +14,7 @@
 
 #include <linux/perf_event.h>
 
-#if 0
-#undef wrmsrl
-#define wrmsrl(msr, val) 						\
-do {									\
-	unsigned int _msr = (msr);					\
-	u64 _val = (val);						\
-	trace_printk("wrmsrl(%x, %Lx)\n", (unsigned int)(_msr),		\
-			(unsigned long long)(_val));			\
-	native_write_msr((_msr), (u32)(_val), (u32)(_val >> 32));	\
-} while (0)
-#endif
+/* To enable MSR tracing please use the generic trace points. */
 
 /*
  *          |   NHM/WSM    |      SNB     |
--
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