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([2a05:6e02:1041:c10:cda6:5a1c:b564:d3ee]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6db13717sm5497605e9.28.2026.05.08.12.22.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 May 2026 12:22:39 -0700 (PDT) Message-ID: Date: Fri, 8 May 2026 21:22:38 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/4] thermal/core: Allocate the thermal class dynamically To: "Rafael J. Wysocki" Cc: lukasz.luba@arm.com, rui.zhang@intel.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260508180511.1306659-1-daniel.lezcano@oss.qualcomm.com> <20260508180511.1306659-4-daniel.lezcano@oss.qualcomm.com> Content-Language: en-US From: Daniel Lezcano In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=CJIamxrD c=1 sm=1 tr=0 ts=69fe3802 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=2VRkuRyHidHvWF5fyokA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-GUID: Wtdss7gOS9YPzoYBgsS9B_LC40b1Gxry X-Proofpoint-ORIG-GUID: Wtdss7gOS9YPzoYBgsS9B_LC40b1Gxry X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA4MDE5MyBTYWx0ZWRfX64fZJ1EtbRaF XDETBaGVakvnnMFsC9JLBUSIgQPH5TJcebGoJ8lm+WhyCqpy5kUItnerbO7/ht611oFuxrpjR82 UQsMvkXTa6AwWGUtOwoeuKjoMAVv32qv25I8WtPr53yfDqHUCByYn0wDR74w3LX+TgSDZFlJlHw qPnZDEda5NVwgiQx0JqXRwl2DoRuRe/afeS0BXQNlBSFRQb4Z13Dety1r/GYK2LUlcYK5/Js9wl h2rdaWnnXXrCbVD9hIsh0d57ARitNt1NXBUh7+CC/TY58wRaDEy4Q6sbRQKkJPGP4uSp2duUijH c33FapujiSVdkQfkiEhuSbmoLOIXi6gWk8+ipLhCTOmajDUIHPFO/E8H8qbpjNfbp5c665GOyP6 XecOyMqGkk+pLcoCLSD/lQulBITGWzJtqFUTohBFXPsDClhWeKhwt6FSbNedtXQJkDW/BWzff2T +cV8+iCb2vKSz5EtW/g== 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 clxscore=1015 bulkscore=0 adultscore=0 spamscore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605080193 On 5/8/26 20:24, Rafael J. Wysocki wrote: > On Fri, May 8, 2026 at 8:05 PM Daniel Lezcano > wrote: >> >> 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. > > I changed it the other way around during the last cycle, so is it > really worth changing again? Yes, I think it is because it does not reintroduce this change: - thermal_class = kzalloc_obj(*thermal_class); - if (!thermal_class) { - result = -ENOMEM; + result = class_register(&thermal_class); + if (result) goto unregister_governors; - } - thermal_class->name = "thermal"; - thermal_class->dev_release = thermal_release; - - result = class_register(thermal_class); - if (result) { - kfree(thermal_class); - thermal_class = NULL; - goto unregister_governors; - } It is replaced by thermal_create("thermal") which allocates and registers the class and we get rid of two global variables. But up to you.