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Fri, 08 May 2026 11:05:20 -0700 (PDT) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:cda6:5a1c:b564:d3ee]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6dd32afasm11654825e9.5.2026.05.08.11.05.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2026 11:05:19 -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 4/4] thermal/core: Use the thermal class pointer as init guard Date: Fri, 8 May 2026 20:05:11 +0200 Message-ID: <20260508180511.1306659-5-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: fH9sKsQCBLIEU9EUvQDg9kRenzSG21uH X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA4MDE4MCBTYWx0ZWRfX87E6wCiILpTF ub0eVBTgmN11nqk2BuVSiR/KZKYAWN9yC+q/JHrznxLMcWAROJz56B3ytwXC/y0I71KhvD90J52 FtD2kOjOyvaWTR3MXNK/w+sbPwK9+Uhl3WaWnHLShIjWfIEvqaKkS/sbTiKMM9j0Li+uNawVNP8 jWG1vH0fOENzvxHOg++BrlI6dlYk8DYZQ1UoL3QnJUMYQu9ATgSAvvBS6yl82nSzprahvXCGkvH dJOtlNlm1YLNvK/gBhf/AJr3OnU0ujhrHTCHw+4lsBcqCHfyrCE/Vg5SfIedCsK9QIM8Po/7jYk WNmkqj+dKi3miF2vXbGwXdw17+G+p9mbOBRLX14/Y/g1tygn/M7plWrFr2WVhl5sxdI6NAej79c GYNhaE364b2wkkJgeSsUUC0+i4WOtERKO2YT9+sV1vf+grK1KH2tmr/QYZGOXR12kFdVta2/yI6 I3rKokt3q4zgoCmkMlA== X-Authority-Analysis: v=2.4 cv=COwamxrD c=1 sm=1 tr=0 ts=69fe25e2 cx=c_pps a=P2rfLEam3zuxRRdjJWA2cw==: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=2kgeJGiveZr2WTZnyR8A:9 a=ODZdjJIeia2B_SHc_B0f:22 X-Proofpoint-ORIG-GUID: fH9sKsQCBLIEU9EUvQDg9kRenzSG21uH 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 The thermal class is now dynamically allocated and stored as a pointer. Use the thermal_class pointer itself to check whether the thermal class has been created instead of keeping a separate thermal_class_unavailable flag. Signed-off-by: Daniel Lezcano --- drivers/thermal/thermal_core.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 748ab76823a3..81f6bbaded65 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -950,7 +950,6 @@ static void thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, } static struct class *thermal_class; -static bool thermal_class_unavailable __ro_after_init = true; static inline void print_bind_err_msg(struct thermal_zone_device *tz, @@ -1053,7 +1052,7 @@ __thermal_cooling_device_register(struct device_node *np, !ops->set_cur_state) return ERR_PTR(-EINVAL); - if (thermal_class_unavailable) + if (!thermal_class) return ERR_PTR(-ENODEV); cdev = kzalloc_obj(*cdev); @@ -1536,7 +1535,7 @@ thermal_zone_device_register_with_trips(const char *type, if (polling_delay && passive_delay > polling_delay) return ERR_PTR(-EINVAL); - if (thermal_class_unavailable) + if (!thermal_class) return ERR_PTR(-ENODEV); tz = kzalloc_flex(*tz, trips, num_trips); @@ -1834,7 +1833,7 @@ static void __thermal_pm_prepare(void) void thermal_pm_prepare(void) { - if (thermal_class_unavailable) + if (!thermal_class) return; __thermal_pm_prepare(); @@ -1865,7 +1864,7 @@ void thermal_pm_complete(void) { struct thermal_zone_device *tz; - if (thermal_class_unavailable) + if (!thermal_class) return; guard(mutex)(&thermal_list_lock); @@ -1902,8 +1901,6 @@ static int __init thermal_init(void) goto unregister_governors; } - thermal_class_unavailable = false; - return 0; unregister_governors: -- 2.43.0