Received: by 2002:a25:e7d8:0:0:0:0:0 with SMTP id e207csp2246772ybh; Mon, 9 Mar 2020 02:00:11 -0700 (PDT) X-Google-Smtp-Source: ADFU+vuZQa5AoKPw0gI34Ru+OXHDinY6WvWszQKJ0yyHKJ2KaXxYd7KzRcrVVAWP6d11BotSrQab X-Received: by 2002:a05:6808:14d:: with SMTP id h13mr10727818oie.121.1583744410952; Mon, 09 Mar 2020 02:00:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1583744410; cv=none; d=google.com; s=arc-20160816; b=N2/7cHoVQp7QRm5zhUjvoxZnXM5gSSq+a5B1KZs6ysfgEpCivbepGAqiukbgkxTOsl zWllmED8QGVlHvlGm67c07IBupVyAAOSgsi7vDErsFI0BOGE9jVYOylaNPj8cgKtUAux vJaPo1RCrl2dKvOE2eRKdb/y5/9n7KIPfMS/CaLenW4NsDyzW3cHYAR+jldCUn5SM4dG c36dUTTG6J7NIEb86orj7NIGQtEHsr9amqpYQmrXOcGIs/1/C+6v619xzhud1OdFHKu+ Q9EuDGgqITk60quKa47MectSf18ea3WfzSriTa2CHPobGaYsY+1gjjEwUf2hFyfstH5T l1Xw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:content-transfer-encoding :mime-version:references:in-reply-to:date:subject:cc:to:from; bh=kiBvW49OnOiG0trCE8ddO3sGnEDUhhuGd4609lPl2DY=; b=ErH/fx6lv4rrzaY2yhP3UeW94lvDENGx55VTOVCPjAM7XuyuCoibpir8sxtbz2uFju v00J5S6E/LbaUsQJMFjPUt2rHvluIX2Qs7PeTZe+38EpTaBKhz4RMINcxbsNuAn+jmAQ d+NrFPJL7iAYWlQ9rp2urlf9f5GwyAbU3tf/7MmjA9EZfJFX/YRa+0Oc8de7GSjsenEZ i8Peq+M7mmE7UR56JvOXupZ+52xSkrDZEndSIgNf5fyEKGUP60VAW87zCjzJVbq6SOjE nh3sQovzV+C9ZFtssRMv6Uk5J2N8Yiz4/6YVkT+FPhBn6rDsqqD8j//hga64KuyhqfrR kSLA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ibm.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 9si3846346oiq.104.2020.03.09.01.59.59; Mon, 09 Mar 2020 02:00:10 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ibm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726845AbgCII7X (ORCPT + 99 others); Mon, 9 Mar 2020 04:59:23 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:62014 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726781AbgCII7V (ORCPT ); Mon, 9 Mar 2020 04:59:21 -0400 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0298oQwS056707 for ; Mon, 9 Mar 2020 04:59:20 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ym8k7d666-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 09 Mar 2020 04:59:20 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 9 Mar 2020 08:59:17 -0000 Received: from b06avi18878370.portsmouth.uk.ibm.com (9.149.26.194) by e06smtp01.uk.ibm.com (192.168.101.131) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 9 Mar 2020 08:59:12 -0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0298xBwf47186260 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 9 Mar 2020 08:59:11 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5EA2EA4053; Mon, 9 Mar 2020 08:59:11 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DA425A404D; Mon, 9 Mar 2020 08:59:08 +0000 (GMT) Received: from bangoria.in.ibm.com (unknown [9.124.31.44]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 9 Mar 2020 08:59:08 +0000 (GMT) From: Ravi Bangoria To: mpe@ellerman.id.au, mikey@neuling.org Cc: apopple@linux.ibm.com, paulus@samba.org, npiggin@gmail.com, christophe.leroy@c-s.fr, naveen.n.rao@linux.vnet.ibm.com, peterz@infradead.org, jolsa@kernel.org, oleg@redhat.com, fweisbec@gmail.com, mingo@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Ravi Bangoria Subject: [PATCH 11/15] powerpc/watchpoint: Introduce is_ptrace_bp() function Date: Mon, 9 Mar 2020 14:28:02 +0530 X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200309085806.155823-1-ravi.bangoria@linux.ibm.com> References: <20200309085806.155823-1-ravi.bangoria@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20030908-4275-0000-0000-000003A9B436 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030908-4276-0000-0000-000038BEC9F2 Message-Id: <20200309085806.155823-12-ravi.bangoria@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-09_02:2020-03-06,2020-03-09 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 impostorscore=0 bulkscore=0 priorityscore=1501 adultscore=0 suspectscore=0 spamscore=0 mlxlogscore=758 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003090066 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce is_ptrace_bp() function and move the check inside the function. We will utilize it more in later set of patches. Signed-off-by: Ravi Bangoria --- arch/powerpc/kernel/hw_breakpoint.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index b27aca623267..0e35ff372d8e 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -90,6 +90,11 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp) hw_breakpoint_disable(); } +static bool is_ptrace_bp(struct perf_event *bp) +{ + return (bp->overflow_handler == ptrace_triggered); +} + /* * Perform cleanup of arch-specific counters during unregistration * of the perf-event @@ -324,7 +329,7 @@ int hw_breakpoint_handler(struct die_args *args) * one-shot mode. The ptrace-ed process will receive the SIGTRAP signal * generated in do_dabr(). */ - if (bp->overflow_handler == ptrace_triggered) { + if (is_ptrace_bp(bp)) { perf_bp_event(bp, regs); rc = NOTIFY_DONE; goto out; -- 2.21.1