Subject: [PATCH] powerpc/pseries: energy driver only print message when LPAR guest

From: Nicholas Piggin <[email-masked]>
Date: Thu, 20 Jul 2017 21:59:00 +1000

This driver currently reports the H_BEST_ENERGY is unsupported even
when booting in a non-LPAR environment (e.g., powernv). Prevent it.

Signed-off-by: Nicholas Piggin <[email-masked]>
---
 arch/powerpc/platforms/pseries/pseries_energy.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c
index 164a13d3998a..832b3d7898a3 100644
--- a/arch/powerpc/platforms/pseries/pseries_energy.c
+++ b/arch/powerpc/platforms/pseries/pseries_energy.c
@@ -229,6 +229,9 @@ static int __init pseries_energy_init(void)
 	int cpu, err;
 	struct device *cpu_dev;
 
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		return 0;
+
 	if (!firmware_has_feature(FW_FEATURE_BEST_ENERGY)) {
 		printk(KERN_INFO "Hypercall H_BEST_ENERGY not supported\n");
 		return 0;
-- 
2.11.0