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Tue, 27 Oct 2026 12:35:20 +0000 (GMT) Received: from [9.43.47.205] (unknown [9.43.47.205]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 27 Oct 2026 12:35:20 +0000 (GMT) Message-ID: <96fdef03-624d-4de0-bfa8-12bdb552272d@linux.ibm.com> Date: Tue, 27 Oct 2026 18:05:19 +0530 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] powerpc/syscall: Return the preset value of skipped syscalls To: Renzo Davoli Cc: Madhavan Srinivasan , Michael Ellerman , Davide Berardi , Nicholas Piggin , Christophe Leroy , =?UTF-8?Q?Michal_Such=C3=A1nek?= , Mukesh Kumar Chaurasiya , Shrikanth Hegde , Thomas Gleixner , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Oleg Nesterov , "Dmitry V . Levin" , Thomas Bogendoerfer , Andrew Morton References: <20261018151539.440213-1-renzo@cs.unibo.it> <49f43f66-f516-413a-9842-bf6d8cef5fb1@linux.ibm.com> Content-Language: en-US From: samir In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=ZYOIpcVA c=1 sm=1 tr=0 ts=6ae09a91 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VwQbUJbxAAAA:8 a=pO4xbdBIu-7luVm97lQA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI3MDA0OCBTYWx0ZWRfX3e/j/RJ72D6e ICIMLag0VlEE07E3h8HqvlUK5nwLt6zGOkY2L9Sz5qxZYUjeDaHhxN1H/jhscYnz+56c+n5rxNc MO+ZKpdv2Eqe/rbYGrAO7dFjJh4OTwkzJJuxDHE+U3jyIAAbTS5i/Eu9+r3L6E7q9B20KldsfiP ZfDRTf4iBl40nfh1tQvvUxsRlC2mHvwSXdT7IcPuW39LrCpbSthv7jOPv1zAAl9QuvQmjEGKTWr TEF/Vay57MGHcuOYaRUBDC2YYYxOzjYBF37Z7PnDVM8zk1UGdeAN83gV6cst4LlXzWtrQMUB9Z4 In+jqPWaQOIuBxU+TNdtHYK5RK7sJr0t3lDimX3z8doaYp1Y1fOIvvixI4WalVweZZ17MtPjprF EqTRIwRo7AYRFfy76kH3TmM/L3sjyixzr43FFTh9EDtresWn+kViJgexYvU8TeHqYDLNW9kZXM3 bTO6BITaHUxE0JKeIWQ== X-Proofpoint-GUID: LP9ey2gZsnnDQJUXCgdDxIxMMULFPPSm X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI3MDA0OCBTYWx0ZWRfX/G5ZWtzJzEH2 /2v/wD7osR2b6E/NJJ0rbyDmfIoVz5qXOxdsoT2rn0Z21SBvvqWnI4VxL3A/ecZ0Vi3QwSSEXqG xIB5tJwGRsdXjUtw4ngzfAx+ueeGdM8= X-Proofpoint-ORIG-GUID: KlFWnw3E6Eucx9uCCYMqsxIpT4C2fZbV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-27_02,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 suspectscore=0 phishscore=0 clxscore=1015 bulkscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610270048 On 23/10/26 11:41 pm, Renzo Davoli wrote: > On Fri, Oct 23, 2026 at 02:28:09PM +0530, samir wrote: >> Hi Renzo, >> >> >> I tried applying the patches to the latest upstream kernel (master branch), >> but the patch fails to apply with the following errors: >> >> error: patch failed: arch/powerpc/include/asm/syscall.h:98 >> error: arch/powerpc/include/asm/syscall.h: patch does not apply >> error: patch failed: arch/powerpc/kernel/syscall.c:18 >> error: arch/powerpc/kernel/syscall.c: patch does not apply >> >> The latest commit on the master branch: >> commit 734bef548a96e8774d6eef5dfa2026c6edc4e80b >> (HEAD -> master, origin/master, origin/HEAD) >> >> >> Could you please take a look and suggest how to resolve these conflicts? >> Does the patch need to be rebased against the latest upstream kernel? >> >> Thanks for your help. >> >> Best regards, >> Samir > fixed in v2: > https://lore.kernel.org/lkml/20261023180735.853655-1-renzo@cs.unibo.it/ > > Best Regards, > renzo Hi Renzo, Thank you for sharing the v2 patch. I was able to apply the patch cleanly on the latest kernel branch without any issues. Thanks again! Regards, Samir