From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vbdV900y2zDqWC for ; Sun, 5 Mar 2017 20:51:28 +1100 (AEDT) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v259mbmN006349 for ; Sun, 5 Mar 2017 04:51:27 -0500 Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [125.16.236.7]) by mx0a-001b2d01.pphosted.com with ESMTP id 28ytkg5d60-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sun, 05 Mar 2017 04:51:26 -0500 Received: from localhost by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sun, 5 Mar 2017 15:21:24 +0530 Received: from d28relay07.in.ibm.com (d28relay07.in.ibm.com [9.184.220.158]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id F40983940033 for ; Sun, 5 Mar 2017 15:21:20 +0530 (IST) Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay07.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v259oD7R10027136 for ; Sun, 5 Mar 2017 15:20:13 +0530 Received: from d28av04.in.ibm.com (localhost [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v259pK40003949 for ; Sun, 5 Mar 2017 15:21:20 +0530 From: Vipin K Parashar To: linuxppc-dev@lists.ozlabs.org Cc: stewart@linux.vnet.ibm.com, Vipin K Parashar Subject: [PATCH v3] powernv/sensor: Handle OPAL_WRONG_STATE error return Date: Sun, 5 Mar 2017 15:21:08 +0530 Message-Id: <1488707468-16643-1-git-send-email-vipin@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , OPAL returns OPAL_WRONG_STATE upon failing to provide sensor data due to core sleeping/offline. Added check for OPAL_WRONG_STATE rerurn code with sensor read failure. Also added a log message indicating sensor data being queried for sleeping/offline core. Signed-off-by: Vipin K Parashar --- Changes in v3: - Added a new case for OPAL_WRONG_STATE in sensor read along with a log message indicating sleeping/offline core causing read fail. arch/powerpc/platforms/powernv/opal-sensor.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-sensor.c b/arch/powerpc/platforms/powernv/opal-sensor.c index 308efd1..fb6d6bb 100644 --- a/arch/powerpc/platforms/powernv/opal-sensor.c +++ b/arch/powerpc/platforms/powernv/opal-sensor.c @@ -64,6 +64,12 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data) *sensor_data = be32_to_cpu(data); break; + case OPAL_WRONG_STATE: + pr_notice("%s: Sensor data read failure due to " + "core sleeping/offline\n", __func__); + ret = -EIO; + break; + default: ret = opal_error_code(ret); break; -- 2.7.4