From nobody Thu Mar 5 08:51:35 2026 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EDD52E7F25; Mon, 16 Feb 2026 18:50:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771267829; cv=none; b=KhFq2Y3fr8vYss/LzCB7JvPcCHAgCwLdcF2p3dzt7GKO+L0wW76CyoJco8Xp+6yygXvegTiqwEv9zyf0sYLqHfIdQH79pmytZSLc3denpoFw3N1qKgkWzeVthBiUkrRhJJ34sP4A+CzA6xzTiDp42ecJoX2z/cwM/OBO52up8j8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771267829; c=relaxed/simple; bh=Sc2dXiAJT/OILgjmrc3sKwHesOwNC8EtU+wzAqoAZAM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AKD9cImzxdrI+4N91plspCmtWTTn0uqkwCmCsioLFK+nGWO2pi/6NI8Ke9ghf2MMiD444QxcIh5xowRjcM/k5/FhNuyt4yrCcaEmCW4+mMbyZy+o8G2ycetZA36xrnZgQTnXppCXSPtLHP7N6wotFxr8aIwyu2+wLOg8QJDOSoc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=ThrHEnSD; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="ThrHEnSD" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 61GEAraK3665841; Mon, 16 Feb 2026 18:50:17 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=6ROujHPnS2BiHwuvF XlBPmdEyb0ri/ara6lyT6CkQSU=; b=ThrHEnSDzSoPASDiIXICqhEusrFm8/Hwx 330bAAbrpJsvSSu1PPGO8Lsj80VBuEWmqjTDxSDMZlgC4JMDnkHEZuXs8+EdnHw1 k1TicZZbaJeoSmwXE850QI7+t6ggZyb13sJjN9QJnsUvICpVvdG4yGRHm2GzDnE7 plx2m+Li8x8XYjTVTyCTGlVeLI2CTrvi63ulpzRT0QOvXb1V2xbVUusIY8o+B/2D cnL+rgLEz3ChP2iEIlma9vH+JZdfjMXpuSprTYM+EY80jH23Rl5cgtCfb3wUTBXr byN1FPJndPJAG92pvGRNJj2a3gkLF4zkUzo1LOAEgpOWfedvcTnwg== Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4caj640d7w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 16 Feb 2026 18:50:17 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 61GI6fIJ002862; Mon, 16 Feb 2026 18:50:16 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4cb5kj69w6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 16 Feb 2026 18:50:16 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 61GIoE7V28836498 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 16 Feb 2026 18:50:14 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 98F2520043; Mon, 16 Feb 2026 18:50:14 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8BDF120040; Mon, 16 Feb 2026 18:50:12 +0000 (GMT) Received: from aboo.ibm.com.com (unknown [9.36.7.180]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 16 Feb 2026 18:50:12 +0000 (GMT) From: Aboorva Devarajan To: rafael@kernel.org, christian.loehle@arm.com, daniel.lezcano@linaro.org Cc: aboorvad@linux.ibm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/4] cpuidle: haltpoll: Remove single state handling Date: Tue, 17 Feb 2026 00:20:03 +0530 Message-ID: <20260216185005.1131593-3-aboorvad@linux.ibm.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260216185005.1131593-1-aboorvad@linux.ibm.com> References: <20260216185005.1131593-1-aboorvad@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 8S5HVXF4hYMcPbpLCAP6NAioI2H2bkPn X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE2MDE1OSBTYWx0ZWRfX1DpsWIS8PHG8 GW3EKUbZhwmTlH3xupFRXrnGs2FD+CseYXqX45pL0IWNHJ3piOQTfE5lvh+n1NQ/PqBtkMb7Iq4 NYOjqPik1sAPXpeUQSTRkI90Ehrdoqn1L1bE8k7oDG6Qo4iE0zbHC0rJ4kcOd3O4rhO2nEVI+4a o1mlC8UrRVeIpBQO95hA/Z8+yo0L3JkRYatRJFkr6wEekTShf8WpWaUKMPbe7LUoDQlnE086yu5 9430xiKU1Z+9zIFCfRIEoRiHnP7WFmSvkuDq00HmMMCgoAReu3hYDFDRG32+PM6eGmdUNQilmCj j6/5htPf/JWfbnZy7OGzQAXyc1YB7ycnXkVPmdQgv+Z178MtkJOIqkuN8x/p6J7D0x3FueHuXfH Yo7PzSzE+hbo15VV017RFmx3m0Ceam4Oiw9BbQRRH7oZTi+ODfMwqO9M/qr9F6thBVOTqDilNnE 3qx003lumrjOfqpCq9w== X-Proofpoint-GUID: 8S5HVXF4hYMcPbpLCAP6NAioI2H2bkPn X-Authority-Analysis: v=2.4 cv=U+mfzOru c=1 sm=1 tr=0 ts=699366e9 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=VnNF1IyMAAAA:8 a=S8W45NxqTDoTMVILZQQA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-16_06,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 impostorscore=0 malwarescore=0 spamscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602160159 Content-Type: text/plain; charset="utf-8" cpuidle systems where the governor has no choice because there's only a single idle state are now handled by cpuidle core and bypass the governor, so remove the related handling. Signed-off-by: Aboorva Devarajan Reviewed-by: Christian Loehle --- drivers/cpuidle/governors/haltpoll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governo= rs/haltpoll.c index 663b7f164d20..ed3952df8526 100644 --- a/drivers/cpuidle/governors/haltpoll.c +++ b/drivers/cpuidle/governors/haltpoll.c @@ -52,7 +52,7 @@ static int haltpoll_select(struct cpuidle_driver *drv, { s64 latency_req =3D cpuidle_governor_latency_req(dev->cpu); =20 - if (!drv->state_count || latency_req =3D=3D 0) { + if (latency_req =3D=3D 0) { *stop_tick =3D false; return 0; } --=20 2.52.0