From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 14 Mar 2019 08:47:18 +0000 (+0100)
Subject: perf/x86/intel: Simplify intel_tfa_commit_scheduling()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1a81542abfdae21716a1a32ea8472de7a271dde6;p=openwrt%2Fstaging%2Fblogic.git

perf/x86/intel: Simplify intel_tfa_commit_scheduling()

validate_group() calls x86_schedule_events(.assign=NULL) and therefore
will not call intel_tfa_commit_scheduling(). So there is no point in
checking cpuc->is_fake, we'll never get there.

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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 8baa441d8000..dee281d58476 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2015,7 +2015,7 @@ static void intel_tfa_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int
 	/*
 	 * We're going to use PMC3, make sure TFA is set before we touch it.
 	 */
-	if (cntr == 3 && !cpuc->is_fake)
+	if (cntr == 3)
 		intel_set_tfa(cpuc, true);
 }