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Fri, 08 May 2026 11:05:19 -0700 (PDT) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:cda6:5a1c:b564:d3ee]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6dd32afasm11654825e9.5.2026.05.08.11.05.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2026 11:05:18 -0700 (PDT) From: Daniel Lezcano To: daniel.lezcano@oss.qualcomm.com, lukasz.luba@arm.com, rafael@kernel.org Cc: rui.zhang@intel.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/4] thermal/core: Allocate the thermal class dynamically Date: Fri, 8 May 2026 20:05:10 +0200 Message-ID: <20260508180511.1306659-4-daniel.lezcano@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260508180511.1306659-1-daniel.lezcano@oss.qualcomm.com> References: <20260508180511.1306659-1-daniel.lezcano@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: DI2NuA5qw415kPZM6bV_RNlkSPPmtV2d X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA4MDE4MCBTYWx0ZWRfXxSxT0DlymKVT /j7yCeS30vRmYlOxIjPiJDSFUJqTACMM/eOYLNm01SDWHe3oDukf4OGQHs6lsl8heZtvRVq64bh Bm4l65tnjziVfDzzNVjs/mR2BOGQEMqpycttki6keOFSDhemCRLsyUKZTPfrtCWodYnRiDnQmx9 aJwWa9XXrc2LNmH04w8Pq+ULNBSQDlEk/RlDyQTuHWwmMEJf0gDUJgYLFdvujH1AaEZwKNja44n Cfz5aJi6dnsP9cSk7Unk/zJZFfiVRvmQAQeMIh5bHvByT46jr/7W33xWKrOuIyom4tSclSQrWTK WDJsqud0twL3gFbUFth9tPxwzN+06ycfy88EG/vSx1IC7dpgQZOQF0s4yuNAUDmUF9ll0J1Omzl dR12D89owIBgnuMnNun4Tr8zN+/wepRPDs0xuMscFkcAwOLc2rn8t18xiG2e71XGwLc4oEV0q9j HKbNgmzeWhr/QFUPcuA== X-Authority-Analysis: v=2.4 cv=COwamxrD c=1 sm=1 tr=0 ts=69fe25e0 cx=c_pps a=N1BjEkVkxJi3uNfLdpvX3g==:117 a=xqWC_Br6kY4A:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=_90HsjT7k80V3hT8LC8A:9 a=crWF4MFLhNY0qMRaF8an:22 X-Proofpoint-ORIG-GUID: DI2NuA5qw415kPZM6bV_RNlkSPPmtV2d X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-07_02,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 spamscore=0 phishscore=0 suspectscore=0 malwarescore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605080180 Use class_create() instead of a statically allocated struct class. This allows the thermal class to be managed through a dynamically allocated class object and avoids keeping a static class instance around. Signed-off-by: Daniel Lezcano --- drivers/thermal/thermal_core.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index a79fc4cdb078..748ab76823a3 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -949,9 +949,7 @@ static void thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, kfree(pos); } -static const struct class thermal_class = { - .name = "thermal", -}; +static struct class *thermal_class; static bool thermal_class_unavailable __ro_after_init = true; static inline @@ -1078,7 +1076,7 @@ __thermal_cooling_device_register(struct device_node *np, cdev->np = np; cdev->ops = ops; cdev->updated = false; - cdev->device.class = &thermal_class; + cdev->device.class = thermal_class; cdev->device.release = thermal_cdev_release; cdev->devdata = devdata; @@ -1574,7 +1572,7 @@ thermal_zone_device_register_with_trips(const char *type, if (!tz->ops.critical) tz->ops.critical = thermal_zone_device_critical; - tz->device.class = &thermal_class; + tz->device.class = thermal_class; tz->device.release = thermal_zone_device_release; tz->devdata = devdata; tz->num_trips = num_trips; @@ -1898,15 +1896,18 @@ static int __init thermal_init(void) if (result) goto destroy_workqueue; - result = class_register(&thermal_class); - if (result) + thermal_class = class_create("thermal"); + if (IS_ERR(thermal_class)) { + result = PTR_ERR(thermal_class); goto unregister_governors; + } thermal_class_unavailable = false; return 0; unregister_governors: + thermal_class = NULL; thermal_unregister_governors(); destroy_workqueue: destroy_workqueue(thermal_wq); -- 2.43.0