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Mon, 16 Feb 2026 18:50:17 +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 4/4] cpuidle: menu: Remove single state handling Date: Tue, 17 Feb 2026 00:20:05 +0530 Message-ID: <20260216185005.1131593-5-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: jZLpsB_5-pUAzWO5SAsd3RIpFEycbCD- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE2MDE1OSBTYWx0ZWRfX5WR7W/2yvzXu gTSGA6DNo0ZsdIF+IUSlyL5UXOk/vCTwsHyGD2Per6K4DY29JKmwjBoFyAi79xNkouuyz3JRwzs pT8fH889Dn/nlwXOzhYVfUSkh8JcWydPyQmr99W4Ab9rALyXvFJnFfTyQm3E5JiAK39g2sTrq8I yC08dC+9+/CozrWOLlfJBXYREdabj2nxY4Y00xieQENWof6kaKZUD+qWZlXu7O3G7jZOJMrsgqz 5eGdCummpo9OW3Kq0YLYxVFoI7CMozGe+ajI+yorTw34aTxtNpl+HCgt7K1W1u6DGkH1GYpxGw4 oLvf/q6yZNBxwED8L1/U5jjpGCz0Qs+9ffjvwbCG/tx2DdohSgdHjsLaIrAOOEsKLaGW7LfNKTm oo//VvMd0tXvMkasMugEbz50kUEHhhmDNlh74ziZVsMtCnQlgkC2s/4y27M9/dPIJvP3aaxHfka lQR/tU85ouvqTlJ/Bng== X-Proofpoint-GUID: jZLpsB_5-pUAzWO5SAsd3RIpFEycbCD- X-Authority-Analysis: v=2.4 cv=U+mfzOru c=1 sm=1 tr=0 ts=699366ed cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=7CQSdrXTAAAA:8 a=H2bq5lvY-VcIl05QleYA:9 a=a-qgeE7W1pNrGK8U0ZQC:22 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" From: Christian Loehle 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: Christian Loehle --- drivers/cpuidle/governors/menu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/m= enu.c index 64d6f7a1c776..fdfa5d7e10a6 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -271,7 +271,7 @@ static int menu_select(struct cpuidle_driver *drv, stru= ct cpuidle_device *dev, data->bucket =3D BUCKETS - 1; } =20 - if (unlikely(drv->state_count <=3D 1 || latency_req =3D=3D 0) || + if (unlikely(latency_req =3D=3D 0) || ((data->next_timer_ns < drv->states[1].target_residency_ns || latency_req < drv->states[1].exit_latency_ns) && !dev->states_usage[0].disable)) { --=20 2.52.0