[PATCH v9 11/17] arm: tegra20/30: cpuidle: Remove unnecessary memory barrier

There is no good justification for smp_rmb() after returning from LP2
because there are no memory operations that require SMP synchronization.
Thus remove the confusing barrier.

Acked-by: Peter De Schrijver <redacted>
Tested-by: Peter Geis <redacted>
Tested-by: Jasper Korten <redacted>
Tested-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/mach-tegra/cpuidle-tegra20.c | 2 --
 arch/arm/mach-tegra/cpuidle-tegra30.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index ccb8b0aa6c46..f8f14c0b79ff 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c

@@ -194,8 +194,6 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 
 	local_fiq_enable();
 
-	smp_rmb();
-
 	return entered_lp2 ? index : 0;
 }
 #endif

diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c
index a4f0add46a27..80ae64bcdf50 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra30.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra30.c

@@ -113,8 +113,6 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev,
 
 	local_fiq_enable();
 
-	smp_rmb();
-
 	return (entered_lp2) ? index : 0;
 }
 #endif

-- 
2.24.0