From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH] powerpc/pseries: energy driver only print message when LPAR guest
Date: Thu, 20 Jul 2017 21:59:00 +1000 [thread overview]
Message-ID: <20170720115900.455-1-npiggin@gmail.com> (raw)
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 <npiggin@gmail.com>
---
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
next reply other threads:[~2017-07-20 11:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-20 11:59 Nicholas Piggin [this message]
2017-07-20 13:03 ` [PATCH] powerpc/pseries: energy driver only print message when LPAR guest Michael Ellerman
2017-07-21 1:16 ` Nicholas Piggin
2017-07-21 4:35 ` Vaidyanathan Srinivasan
2017-07-21 6:33 ` Michael Ellerman
2017-07-21 8:02 ` Vaidyanathan Srinivasan
2017-08-11 12:19 ` Michael Ellerman
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