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{ "id": 2216760, "url": "http://patchwork.ozlabs.org/api/covers/2216760/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260327063129.127302-1-sshegde@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/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": "<20260327063129.127302-1-sshegde@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260327063129.127302-1-sshegde@linux.ibm.com/", "date": "2026-03-27T06:31:27", "name": "[0/2] powerpc: A few misc cpumask refactors", "submitter": { "id": 87866, "url": "http://patchwork.ozlabs.org/api/people/87866/?format=api", "name": "Shrikanth Hegde", "email": "sshegde@linux.ibm.com" }, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260327063129.127302-1-sshegde@linux.ibm.com/mbox/", "series": [ { "id": 497695, "url": "http://patchwork.ozlabs.org/api/series/497695/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=497695", "date": "2026-03-27T06:31:27", "name": "powerpc: A few misc cpumask refactors", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497695/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2216760/comments/", "headers": { "Return-Path": "\n <linuxppc-dev+bounces-18899-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=kVech+3C;\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; 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lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=kVech+3C; dkim-atps=neutral;\n spf=pass (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com;\n envelope-from=sshegde@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:message-id:mime-version\n\t:subject:to; s=pp1; bh=Yq35+eY8ts+l+sLLEfl3dRavvWM5IuFVdVXwWzzT2\n\td8=; b=kVech+3CMpOcVimw3+OTm17eUBepWTRfAYNUws9MYQAcMWab/eGvQlpHj\n\tyz1d+/0Xm3ZrdUw9KKTd/nZ808OqUiF/4SmEthbRbdDEWgJRjnKIFqUsz1i8ss4/\n\tiPU9Odlvy8fsNKf7cGZNFxt8Qd3PzZPSQvGCPcE3EqIdjTClMw9b83tK/Olo65KE\n\t67lArOqeuVCSEgCn5RaCs2iuumRrQuY2PxjP6MFyHZlefctw6LdCz0anlKEblX5P\n\tYwgDbQXoPX7aeCQEcN3dvMHs83LosJUONhsgLnuo4GutsK1PVIOG/XwQ318/vWBa\n\trNWP+ev6MVfZEy478L26vLtKvlj9A==", "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", "Subject": "[PATCH 0/2] powerpc: A few misc cpumask refactors", "Date": "Fri, 27 Mar 2026 12:01:27 +0530", "Message-ID": "<20260327063129.127302-1-sshegde@linux.ibm.com>", "X-Mailer": "git-send-email 2.51.0", "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": "AW1haW4tMjYwMzI3MDA0NSBTYWx0ZWRfX7Mg+KSxmMr0p\n +I9Vid0W/3sjtkRZZQ2BdKyUN8vULYTVnS8ncgIOM/4FUuk/9gTvS5y9JtQyV5AFGnO52v2vkqT\n 6qB2U9vZd9PpukE774YdwBkc345atzoOiiFyKoAA9sCh23BAvmz0Zf7Y4McMRAOet5T9snAOlfr\n mPh+mwzh+k1uHLQbs8L52NvlCUi17h5X5KBdPZfjZTEPySB+Xi+lQr0mZV+6/mXGaz6tradN6ew\n GTJAOVivpIGZb/+Wb+lFCFYzrCtsCNkFJQIWsd5i0pMiSwvrm7M9sig0MbxdF81y6n8X+PUtMPB\n HZYyR3hRoYDIEWP9OODjKwAvlVyAPRcVYILhOQauaONp60O4Fxp4i9CFTfmRI9pJdujyqr80v3h\n 8w6drtesPiEPs8ZmkUb5CEW2mzunw6dNFLO8lkUkkuJfTcCQbdezoXjGlVFiJbb0u0g9MnBZq9U\n njyVPMSeX1+WQNvpB1g==", "X-Authority-Analysis": "v=2.4 cv=JK42csKb c=1 sm=1 tr=0 ts=69c6244b cx=c_pps\n a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17\n a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=V8glGbnc2Ofi9Qvn3v5h:22 a=dqFMsSFrXTCGJFEeyBoA:9", "X-Proofpoint-ORIG-GUID": "STrPFMPpmXOdORy7-k-bxhLeHEKPY6dV", "X-Proofpoint-GUID": "k4l9_jSHFr7pEbOvtK7JAtyijcreubCA", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-03-26_04,2026-03-26_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n impostorscore=0 clxscore=1015 priorityscore=1501 malwarescore=0 adultscore=0\n spamscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603270045", "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": "While going through the code, spotted these cpumask miscellaneous\nchanges. These are pure code refactors, they dont affect functionality\nor performance. They just use the updated cpumask api and remove some\nchecks which are not necessary now.\n\nMajor one being:\ncpu = cpumask_next(cpu, mask)\nif (cpu >= nr_cpu_ids)\n cpu = cpumask_first(mask)\nAbove block can be replaced by cpu = cpumask_next_wrap(cpu, mask)\n\n\nNote that exact same blocks are still present in:\narch/x86/kernel/tsc_sync.c\ndrivers/char/random.c\ndrivers/net/wireguard/queueing.h\ndrivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c\ndrivers/net/ethernet/sfc/siena/efx_channels.c\ndrivers/net/ethernet/sfc/efx_channels.c\nkernel/rcu/rcutorture.c\n\nYury, Rasmus,\nDo you think it makes sense to send for the above files too?\n\nShrikanth Hegde (2):\n powerpc: Use cpumask_next_wrap instead\n powerpc: Few misc cpumask code refactors\n\n arch/powerpc/kernel/irq.c | 5 +----\n arch/powerpc/kernel/setup-common.c | 7 ++-----\n arch/powerpc/mm/book3s64/hash_utils.c | 4 +---\n arch/powerpc/sysdev/xive/common.c | 12 ++++--------\n 4 files changed, 8 insertions(+), 20 deletions(-)" }