Commit aefbc4d0 authored Jun 30, 2016 by Peter Zijlstra Committed by Ingo Molnar Jul 07, 2016

perf/x86/intel: Fix rdlbr_to() MSR reading typo



It helps to actually read the right MSR..

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Fixes: d4cf1949 ("perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers")
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 3ebe3bd8

arch/x86/events/intel/lbr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -323,7 +323,7 @@ static inline u64 rdlbr_to(unsigned int idx)
		{
		u64 val;

		rdmsrl(x86_pmu.lbr_from + idx, val);
		rdmsrl(x86_pmu.lbr_to + idx, val);

		return val;
		}