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Thu, 30 Apr 2020 04:34:42 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5946142042; Thu, 30 Apr 2020 04:34:39 +0000 (GMT) Received: from bangoria.ibmuc.com (unknown [9.199.59.105]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 30 Apr 2020 04:34:39 +0000 (GMT) From: Ravi Bangoria To: mpe@ellerman.id.au, mikey@neuling.org Subject: [PATCH v4 04/16] powerpc/watchpoint/ptrace: Return actual num of available watchpoints Date: Thu, 30 Apr 2020 10:04:05 +0530 Message-Id: <20200430043417.30948-5-ravi.bangoria@linux.ibm.com> X-Mailer: git-send-email 2.25.3 In-Reply-To: <20200430043417.30948-1-ravi.bangoria@linux.ibm.com> References: <20200430043417.30948-1-ravi.bangoria@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-30_01:2020-04-30, 2020-04-30 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 spamscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 phishscore=0 adultscore=0 impostorscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004300035 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: apopple@linux.ibm.com, ravi.bangoria@linux.ibm.com, peterz@infradead.org, fweisbec@gmail.com, oleg@redhat.com, npiggin@gmail.com, linux-kernel@vger.kernel.org, paulus@samba.org, jolsa@kernel.org, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, mingo@kernel.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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;