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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 13 Jun 2019 06:06:22 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x5D56EsZ28442890 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 13 Jun 2019 05:06:14 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AEED95204F; Thu, 13 Jun 2019 05:06:21 +0000 (GMT) Received: from [9.85.72.231] (unknown [9.85.72.231]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 10F5B52051; Thu, 13 Jun 2019 05:06:19 +0000 (GMT) Subject: Re: [PATCH 0/2] powerpc/bpf: DIV64 instruction fix To: "Naveen N. Rao" References: From: Sandipan Das Date: Thu, 13 Jun 2019 10:36:17 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19061305-0008-0000-0000-000002F3521F X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19061305-0009-0000-0000-000022605641 Message-Id: <9420d355-94d3-4ab0-78d3-01596774676d@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-06-13_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=673 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906130040 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: netdev@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Alexei Starovoitov , Daniel Borkmann Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 13/06/19 12:21 AM, Naveen N. Rao wrote: > The first patch updates DIV64 overflow tests to properly detect error > conditions. The second patch fixes powerpc64 JIT to generate the proper > unsigned division instruction for BPF_ALU64. > > - Naveen > > Naveen N. Rao (2): > bpf: fix div64 overflow tests to properly detect errors > powerpc/bpf: use unsigned division instruction for 64-bit operations > > arch/powerpc/include/asm/ppc-opcode.h | 1 + > arch/powerpc/net/bpf_jit.h | 2 +- > arch/powerpc/net/bpf_jit_comp64.c | 8 ++++---- > .../testing/selftests/bpf/verifier/div_overflow.c | 14 ++++++++++---- > 4 files changed, 16 insertions(+), 9 deletions(-) > For the series Acked-by: Sandipan Das