From patchwork Sun Nov 11 20:04:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 996182 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42tPxg26jfz9sB7 for ; Mon, 12 Nov 2018 07:04:55 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731183AbeKLFyU (ORCPT ); Mon, 12 Nov 2018 00:54:20 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:44154 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731166AbeKLFyT (ORCPT ); Mon, 12 Nov 2018 00:54:19 -0500 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wABJwx2s082982 for ; Sun, 11 Nov 2018 15:04:51 -0500 Received: from e15.ny.us.ibm.com (e15.ny.us.ibm.com [129.33.205.205]) by mx0a-001b2d01.pphosted.com with ESMTP id 2npdn2ht3b-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sun, 11 Nov 2018 15:04:50 -0500 Received: from localhost by e15.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Sun, 11 Nov 2018 20:04:44 -0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wABK4hiH26083458 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 11 Nov 2018 20:04:43 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B2945B205F; Sun, 11 Nov 2018 20:04:43 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6F57FB2067; Sun, 11 Nov 2018 20:04:43 +0000 (GMT) Received: from paulmck-ThinkPad-W541 (unknown [9.85.207.24]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Sun, 11 Nov 2018 20:04:43 +0000 (GMT) Received: by paulmck-ThinkPad-W541 (Postfix, from userid 1000) id A46E816C5D5F; Sun, 11 Nov 2018 12:04:44 -0800 (PST) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, Lance Roy , Steve Glendinning , "David S. Miller" , netdev@vger.kernel.org, "Paul E . McKenney" Subject: [PATCH tip/core/rcu 3/7] smsc: Replace spin_is_locked() with lockdep Date: Sun, 11 Nov 2018 12:04:39 -0800 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181111200421.GA10551@linux.ibm.com> References: <20181111200421.GA10551@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18111120-0068-0000-0000-0000035E49CD X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010028; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000270; SDB=6.01116026; UDB=6.00578736; IPR=6.00896126; MB=3.00024114; MTD=3.00000008; XFM=3.00000015; UTC=2018-11-11 20:04:48 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18111120-0069-0000-0000-0000466454C6 Message-Id: <20181111200443.10772-3-paulmck@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-11-11_13:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=778 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1811110191 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Lance Roy lockdep_assert_held() is better suited to checking locking requirements, since it only checks if the current thread holds the lock regardless of whether someone else does. This is also a step towards possibly removing spin_is_locked(). Signed-off-by: Lance Roy Cc: Steve Glendinning Cc: "David S. Miller" Cc: Signed-off-by: Paul E. McKenney --- drivers/net/ethernet/smsc/smsc911x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.h b/drivers/net/ethernet/smsc/smsc911x.h index 8d75508acd2b..51b2fc1a395f 100644 --- a/drivers/net/ethernet/smsc/smsc911x.h +++ b/drivers/net/ethernet/smsc/smsc911x.h @@ -67,7 +67,7 @@ #ifdef CONFIG_DEBUG_SPINLOCK #define SMSC_ASSERT_MAC_LOCK(pdata) \ - WARN_ON_SMP(!spin_is_locked(&pdata->mac_lock)) + lockdep_assert_held(&pdata->mac_lock) #else #define SMSC_ASSERT_MAC_LOCK(pdata) do {} while (0) #endif /* CONFIG_DEBUG_SPINLOCK */