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[23.128.96.18]) by mx.google.com with ESMTP id w25si1535662edl.165.2020.05.14.04.20.12; Thu, 14 May 2020 04:20:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S1726980AbgENLSc (ORCPT + 99 others); Thu, 14 May 2020 07:18:32 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:20892 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgENLSb (ORCPT ); Thu, 14 May 2020 07:18:31 -0400 Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04EB4j15024519; Thu, 14 May 2020 07:18:11 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 310syx0663-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 May 2020 07:18:10 -0400 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 04EB65lC028140; Thu, 14 May 2020 07:18:10 -0400 Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 310syx065d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 May 2020 07:18:10 -0400 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 04EBG1AB019863; Thu, 14 May 2020 11:18:08 GMT Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by ppma04ams.nl.ibm.com with ESMTP id 3100ub3g7m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 May 2020 11:18:08 +0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 04EBI5Nq64749608 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 May 2020 11:18:05 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 59F6F42047; Thu, 14 May 2020 11:18:05 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2534842042; Thu, 14 May 2020 11:18:02 +0000 (GMT) Received: from bangoria.ibmuc.com (unknown [9.199.59.186]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 14 May 2020 11:18:01 +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@linux.ibm.com Subject: [PATCH v6 04/16] powerpc/watchpoint/ptrace: Return actual num of available watchpoints Date: Thu, 14 May 2020 16:47:29 +0530 Message-Id: <20200514111741.97993-5-ravi.bangoria@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200514111741.97993-1-ravi.bangoria@linux.ibm.com> References: <20200514111741.97993-1-ravi.bangoria@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.676 definitions=2020-05-14_02:2020-05-13,2020-05-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 spamscore=0 bulkscore=0 impostorscore=0 cotscore=-2147483648 phishscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 malwarescore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005140095 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org User can ask for num of available watchpoints(dbginfo.num_data_bps) using ptrace(PPC_PTRACE_GETHWDBGINFO). Return actual number of available watchpoints on the machine rather than hardcoded 1. Signed-off-by: Ravi Bangoria Reviewed-by: Michael Neuling --- arch/powerpc/kernel/ptrace/ptrace-noadv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c index f87e7c5c3bf3..12962302d6a4 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c +++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c @@ -44,7 +44,7 @@ void ppc_gethwdinfo(struct ppc_debug_info *dbginfo) dbginfo->version = 1; dbginfo->num_instruction_bps = 0; if (ppc_breakpoint_available()) - dbginfo->num_data_bps = 1; + dbginfo->num_data_bps = nr_wp_slots(); else dbginfo->num_data_bps = 0; dbginfo->num_condition_regs = 0; -- 2.26.2