From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x244.google.com (mail-pg0-x244.google.com [IPv6:2607:f8b0:400e:c05::244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xCsrw5cQNzDrFM for ; Thu, 20 Jul 2017 21:59:44 +1000 (AEST) Received: by mail-pg0-x244.google.com with SMTP id t8so2603065pgs.4 for ; Thu, 20 Jul 2017 04:59:44 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Cc: Nicholas Piggin Subject: [PATCH] powerpc/pseries: energy driver only print message when LPAR guest Date: Thu, 20 Jul 2017 21:59:00 +1000 Message-Id: <20170720115900.455-1-npiggin@gmail.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 --- 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