From patchwork Thu Sep 29 05:52:00 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gavin Shan X-Patchwork-Id: 676526 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sl3pJ0zkDz9sBX for ; Thu, 29 Sep 2016 16:00:40 +1000 (AEST) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3sl3pJ0CmJzDvLS for ; Thu, 29 Sep 2016 16:00:40 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 3sl3c218D6zDsff for ; Thu, 29 Sep 2016 15:51:45 +1000 (AEST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u8T5m1lv119422 for ; Thu, 29 Sep 2016 01:51:43 -0400 Received: from e23smtp05.au.ibm.com (e23smtp05.au.ibm.com [202.81.31.147]) by mx0b-001b2d01.pphosted.com with ESMTP id 25rudn36e5-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 29 Sep 2016 01:51:42 -0400 Received: from localhost by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Thu, 29 Sep 2016 15:51:38 +1000 Received: from d23relay09.au.ibm.com (d23relay09.au.ibm.com [9.185.63.181]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 0AC7A3578057 for ; Thu, 29 Sep 2016 15:51:38 +1000 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u8T5pbtu48169028 for ; Thu, 29 Sep 2016 15:51:37 +1000 Received: from d23av03.au.ibm.com (localhost [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u8T5pbRc032670 for ; Thu, 29 Sep 2016 15:51:37 +1000 Received: from ozlabs.au.ibm.com (ozlabs.au.ibm.com [9.192.253.14]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u8T5pb3t032667; Thu, 29 Sep 2016 15:51:37 +1000 Received: from bran.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) by ozlabs.au.ibm.com (Postfix) with ESMTP id 2671AA01B7; Thu, 29 Sep 2016 15:51:37 +1000 (AEST) Received: from gwshan (shangw.ozlabs.ibm.com [10.61.2.199]) by bran.ozlabs.ibm.com (Postfix) with ESMTP id 20EEAE3C36; Thu, 29 Sep 2016 15:51:37 +1000 (AEST) Received: by gwshan (Postfix, from userid 1000) id 1B28A942BBC; Thu, 29 Sep 2016 15:52:08 +1000 (AEST) From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 2/7] powerpc/eeh: Export confirm_error_lock Date: Thu, 29 Sep 2016 15:52:00 +1000 X-Mailer: git-send-email 2.1.0 In-Reply-To: <1475128325-5367-1-git-send-email-gwshan@linux.vnet.ibm.com> References: <1475128325-5367-1-git-send-email-gwshan@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16092905-0016-0000-0000-000001D80020 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16092905-0017-0000-0000-00000588F2A3 Message-Id: <1475128325-5367-3-git-send-email-gwshan@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-09-29_02:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609020000 definitions=main-1609290098 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bhelgaas@google.com, Gavin Shan Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This exports @confirm_error_lock so that eeh_serialize_{lock, unlock}() can be used to freeze the affected PE in PCI surprise hot remove path. Signed-off-by: Gavin Shan --- arch/powerpc/kernel/eeh.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 0699f15..130bcae 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -116,6 +116,7 @@ struct eeh_ops *eeh_ops = NULL; /* Lock to avoid races due to multiple reports of an error */ DEFINE_RAW_SPINLOCK(confirm_error_lock); +EXPORT_SYMBOL_GPL(confirm_error_lock); /* Lock to protect passed flags */ static DEFINE_MUTEX(eeh_dev_mutex);