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Mon, 12 Oct 2026 14:43:02 +0000 (GMT) Received: from [0.0.0.0] (unknown [9.87.157.242]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 Oct 2026 14:43:02 +0000 (GMT) Message-ID: Date: Mon, 12 Oct 2026 16:43:02 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 32/32] s390/extable: Remove EX_TABLE macros and fallback extable search To: Heiko Carstens , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Niklas Schnelle , Matthew Rosato , Gerald Schaefer , Vineeth Vijayan , Peter Oberparleiter , Harald Freudenberger , Holger Dengler , Stefan Haberland , Jan Hoeppner , Janosch Frank , Claudio Imbrenda Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org References: <20261001103247.1989111-1-hca@linux.ibm.com> <20261001103247.1989111-33-hca@linux.ibm.com> Content-Language: en-US From: Ilya Leoshkevich In-Reply-To: <20261001103247.1989111-33-hca@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: d_3zPTzxLkp4Gd8MWwg3yojCOlNJiY1C X-Proofpoint-ORIG-GUID: d_3zPTzxLkp4Gd8MWwg3yojCOlNJiY1C X-Authority-Analysis: v=2.4 cv=aqInmiZV c=1 sm=1 tr=0 ts=6accf1fb cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=zqj48yzne7XEvSD_7ugA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEyMDA1NiBTYWx0ZWRfX4pkpQYMp5JMH Z3FpcU7MffzabtUSsQm6WcubVlTuBCudIEyWgVCo/FvqeJ0rSVpIetLleATkWKgiPdG2h60k4Qm kuj0RrJ76jx9In/X4Eifn2Ypf9ka9vY= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEyMDA1NiBTYWx0ZWRfX4GhK6j0M6Q6U 0ldj4lUl0xvseXG9BPptUnHQGs9b3PmND3uorg64hKh/KUjYYvUGeoFezCfOve0e2uL0EqUMh92 QUaBo3yoTFkh7W1GzmhVq8xZ1wUYJQhzLdySXqiGtj4mIw0hc+aGsvP3zDlMqpauQp5s3m3Jxij o3n3gJM7O6m5mo2ABt0YZlI3peMG9Ym6nlbyUnO+RK9a+emKQQVQjI7yF8nS3ZyMk6Du2rRN4D3 4/Po2E73nGg5AhNnA2yp5M38x5unNyN6lV58JhUzaQtwVDCId2X8uUemrinkVHZmQ7JAwm7i9SX ZzMIxz1K+OhRrHvHFZ4sgsu2NFcoVsGnRZveIhrGY7iz1P7Fp5ufDUTJQ6HaPsnUtlk4/rBNixC o9uEn/rkepAHLeTbGpAZurW6PKNX1pti3biYXzrj5a0eZwu+53x7uuqGOxgBGQnK3Jl84nmHf5H QB3JevDznzaK2M0qB+g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-12_04,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 spamscore=0 malwarescore=0 suspectscore=0 bulkscore=0 adultscore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610120056 On 10/1/26 12:32, Heiko Carstens wrote: > Now that all exception table entries point to the faulting instruction, > rename all EX_TABLE* macros to EX_TABLE_INSN* and remove the > EX_TABLE_INSN* aliases. > > Also remove the fallback extable search via instruction_pointer() which > was only needed to handle the old EX_TABLE entries that pointed to the > instruction after the faulting instruction. > > Add a comment above the EX_TABLE_INSN macros that documents the usage > rule and describe the difference to the previous EX_TABLE macros. This > might be helpful in case of backporting to old kernels. > > Signed-off-by: Heiko Carstens > --- > arch/s390/boot/pgm_check.c | 23 +++++------------ > arch/s390/include/asm/asm-extable.h | 38 ++++++++++++++--------------- > arch/s390/include/asm/extable.h | 25 ++++++------------- > arch/s390/mm/extable.c | 2 -- > 4 files changed, 32 insertions(+), 56 deletions(-) Reviewed-by: Ilya Leoshkevich