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GET /api/1.2/patches/2228572/?format=api
{ "id": 2228572, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2228572/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260427044715.559137-2-sshegde@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.2/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260427044715.559137-2-sshegde@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260427044715.559137-2-sshegde@linux.ibm.com/", "date": "2026-04-27T04:47:12", "name": "[v2,1/4] powerpc: Use cpumask_next_wrap instead", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "af2e8ffccc1fe916179d4159d6d8d2dadbed4994", "submitter": { "id": 87866, "url": "http://patchwork.ozlabs.org/api/1.2/people/87866/?format=api", "name": "Shrikanth Hegde", "email": "sshegde@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260427044715.559137-2-sshegde@linux.ibm.com/mbox/", "series": [ { "id": 501570, "url": "http://patchwork.ozlabs.org/api/1.2/series/501570/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501570", "date": "2026-04-27T04:47:11", "name": "powerpc: A few misc cpumask changes", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/501570/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2228572/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2228572/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20141-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=JClJBrDx;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-20141-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)", "lists.ozlabs.org;\n arc=none smtp.remote-ip=148.163.158.5", "lists.ozlabs.org;\n dmarc=pass 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bh=78ndu7eUGmfubw6W2\n\trI7Ewwj6YgAOPRj8w6DmpeRpfo=; b=JClJBrDx7iaNQL7iytYQRQgG1BKSvgpV1\n\tK6yBDuQGvhW4OM6n121G1Jns4ENXzI/5lDnCht4fdF4Sm2dDhkzjrL/dylOv8myc\n\t9ebLQDoiH2YR3rPRDICcBSPNIe/yxR7xB6a+R2rny6KT74QW4+CIkOVGm9h/ELnl\n\tdinWebx+z9pX6Yx5KS36ZiL1Y/PGiR/DZh62fFnojdsemI61q9dxYL6rkAAk3dhR\n\teMruoLUAW+KSJd/X3EuRKqApOXcAIAbqcl5H7sTCwF1LjmHeXihh8o8U9v9luLL3\n\tKYCgTAAfrQLtQHvURpoupyfHHVeHrKEze9Wt8i2tcY+oX25+ynBZQ==", "From": "Shrikanth Hegde <sshegde@linux.ibm.com>", "To": "maddy@linux.ibm.com, linuxppc-dev@lists.ozlabs.org, yury.norov@gmail.com,\n linux@rasmusvillemoes.dk, linux-kernel@vger.kernel.org", "Cc": "sshegde@linux.ibm.com, chleroy@kernel.org, Yury Norov <ynorov@nvidia.com>", "Subject": "[PATCH v2 1/4] powerpc: Use cpumask_next_wrap instead", "Date": "Mon, 27 Apr 2026 10:17:12 +0530", "Message-ID": "<20260427044715.559137-2-sshegde@linux.ibm.com>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260427044715.559137-1-sshegde@linux.ibm.com>", "References": "<20260427044715.559137-1-sshegde@linux.ibm.com>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-Reinject": "loops=2 maxloops=12", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDI3MDA0OCBTYWx0ZWRfX6Wg8xyUMudNR\n 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engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-27_01,2026-04-21_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n phishscore=0 adultscore=0 suspectscore=0 bulkscore=0 spamscore=0\n priorityscore=1501 malwarescore=0 clxscore=1015 lowpriorityscore=0\n impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc=\n route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000\n definitions=main-2604270048", "X-Spam-Status": "No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tRCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "cpu = cpumask_next(cpu, mask)\nif (cpu >= nr_cpu_ids)\n cpu = cpumask_first(mask)\n\nAbove block is identical to:\ncpu = cpumask_next_wrap(cpu, mask)\n\nReplace it, No change in functionality or performance.\nSlightly simpler code.\n\nReviewed-by: Yury Norov <ynorov@nvidia.com>\nSigned-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>\n---\n arch/powerpc/kernel/irq.c | 5 +----\n arch/powerpc/mm/book3s64/hash_utils.c | 4 +---\n 2 files changed, 2 insertions(+), 7 deletions(-)", "diff": "diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c\nindex a0e8b998c9b5..f69de08ad347 100644\n--- a/arch/powerpc/kernel/irq.c\n+++ b/arch/powerpc/kernel/irq.c\n@@ -370,10 +370,7 @@ int irq_choose_cpu(const struct cpumask *mask)\n do_round_robin:\n \t\traw_spin_lock_irqsave(&irq_rover_lock, flags);\n \n-\t\tirq_rover = cpumask_next(irq_rover, cpu_online_mask);\n-\t\tif (irq_rover >= nr_cpu_ids)\n-\t\t\tirq_rover = cpumask_first(cpu_online_mask);\n-\n+\t\tirq_rover = cpumask_next_wrap(irq_rover, cpu_online_mask);\n \t\tcpuid = irq_rover;\n \n \t\traw_spin_unlock_irqrestore(&irq_rover_lock, flags);\ndiff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c\nindex 9dc5889d6ecb..e4fcf929cb33 100644\n--- a/arch/powerpc/mm/book3s64/hash_utils.c\n+++ b/arch/powerpc/mm/book3s64/hash_utils.c\n@@ -1299,9 +1299,7 @@ static void stress_hpt_timer_fn(struct timer_list *timer)\n \tif (!firmware_has_feature(FW_FEATURE_LPAR))\n \t\ttlbiel_all();\n \n-\tnext_cpu = cpumask_next(raw_smp_processor_id(), cpu_online_mask);\n-\tif (next_cpu >= nr_cpu_ids)\n-\t\tnext_cpu = cpumask_first(cpu_online_mask);\n+\tnext_cpu = cpumask_next_wrap(raw_smp_processor_id(), cpu_online_mask);\n \tstress_hpt_timer.expires = jiffies + msecs_to_jiffies(10);\n \tadd_timer_on(&stress_hpt_timer, next_cpu);\n }\n", "prefixes": [ "v2", "1/4" ] }