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([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5fab2112csm49261195ad.62.2026.04.18.08.49.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 18 Apr 2026 08:49:34 -0700 (PDT) Sender: Guenter Roeck Message-ID: <7fa7d4dd-7b05-4af2-a8da-6e605fa91f90@roeck-us.net> Date: Sat, 18 Apr 2026 08:49:33 -0700 Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] hwmon: (yogafan) Massive hardware expansion and structural refactoring To: Rong Zhang , kernel test robot , Sergio Melas , Jean Delvare Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-hwmon@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Armin Wolf , "Derek J . Clark" References: <20260413060931.31091-2-sergiomelas@gmail.com> <202604180539.EuswNnjG-lkp@intel.com> <27b467c7-7ca0-4198-b4ea-efb38f2ac787@roeck-us.net> Content-Language: en-US From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 7i1xvaDB9lN5WTLRKSO7wICuLiSz5WZHXMkyF4d+/O5ll7yz/o/JxK5vO/sduYDIlFTvBZDh gzaEtNf5tQjsjG4io8E0Yq0ViobLkS2RTNZT8ICq/Jmvl0SpbHRvYwa2DhNsK0YjHFQBB0FX IdhdUEzNefcNcYvqigJpdICoP2e4yJSyflHFO4dr0OrdnGLe1Zi/8Xo/2+M1dSSEt196rXaC kwu2KgIgmkRBb3cp2vIBBIIowU8W3qC1+w+RdMUrZxKGWJ3juwcgveJlzMpMZNyM1jobSXZ0 VHGMNJ3MwXlrEFPXaYJgibcg6brM6wGfX/LBvc/haWw4yO24lT5eitm4UBdIy9pKkKmHHh7s jfZJkB5fWKVdoCv/omy6UyH6ykLOPFugl+hVL2Prf8xrXuZe1CMS7ID9Lc8FaL1ROIN/W8Vk BIsJMaWOhks//7d92Uf3EArDlDShwR2+D+AMon8NULuLBHiEUQARAQABzTJHdWVudGVyIFJv ZWNrIChMaW51eCBhY2NvdW50KSA8bGludXhAcm9lY2stdXMubmV0PsLBgQQTAQIAKwIbAwYL CQgHAwIGFQgCCQoLBBYCAwECHgECF4ACGQEFAmgrMyQFCSbODQkACgkQyx8mb86fmYGcWRAA oRwrk7V8fULqnGGpBIjp7pvR187Yzx+lhMGUHuM5H56TFEqeVwCMLWB2x1YRolYbY4MEFlQg VUFcfeW0OknSr1s6wtrtQm0gdkolM8OcCL9ptTHOg1mmXa4YpW8QJiL0AVtbpE9BroeWGl9v 2TGILPm9mVp+GmMQgkNeCS7Jonq5f5pDUGumAMguWzMFEg+Imt9wr2YA7aGen7KPSqJeQPpj onPKhu7O/KJKkuC50ylxizHzmGx+IUSmOZxN950pZUFvVZH9CwhAAl+NYUtcF5ry/uSYG2U7 DCvpzqOryJRemKN63qt1bjF6cltsXwxjKOw6CvdjJYA3n6xCWLuJ6yk6CAy1Ukh545NhgBAs rGGVkl6TUBi0ixL3EF3RWLa9IMDcHN32r7OBhw6vbul8HqyTFZWY2ksTvlTl+qG3zV6AJuzT WdXmbcKN+TdhO5XlxVlbZoCm7ViBj1+PvIFQZCnLAhqSd/DJlhaq8fFXx1dCUPgQDcD+wo65 qulV/NijfU8bzFfEPgYP/3LP+BSAyFs33y/mdP8kbMxSCjnLEhimQMrSSo/To1Gxp5C97fw5 3m1CaMILGKCmfI1B8iA8zd8ib7t1Rg0qCwcAnvsM36SkrID32GfFbv873bNskJCHAISK3Xkz qo7IYZmjk/IJGbsiGzxUhvicwkgKE9r7a1rOwU0ETofVZwEQALlLbQeBDTDbwQYrj0gbx3bq 7kpKABxN2MqeuqGr02DpS9883d/t7ontxasXoEz2GTioevvRmllJlPQERVxM8gQoNg22twF7 pB/zsrIjxkE9heE4wYfN1AyzT+AxgYN6f8hVQ7Nrc9XgZZe+8IkuW/Nf64KzNJXnSH4u6nJM J2+Dt274YoFcXR1nG76Q259mKwzbCukKbd6piL+VsT/qBrLhZe9Ivbjq5WMdkQKnP7gYKCAi pNVJC4enWfivZsYupMd9qn7Uv/oCZDYoBTdMSBUblaLMwlcjnPpOYK5rfHvC4opxl+P/Vzyz 6WC2TLkPtKvYvXmdsI6rnEI4Uucg0Au/Ulg7aqqKhzGPIbVaL+U0Wk82nz6hz+WP2ggTrY1w ZlPlRt8WM9w6WfLf2j+PuGklj37m+KvaOEfLsF1v464dSpy1tQVHhhp8LFTxh/6RWkRIR2uF I4v3Xu/k5D0LhaZHpQ4C+xKsQxpTGuYh2tnRaRL14YMW1dlI3HfeB2gj7Yc8XdHh9vkpPyuT nY/ZsFbnvBtiw7GchKKri2gDhRb2QNNDyBnQn5mRFw7CyuFclAksOdV/sdpQnYlYcRQWOUGY HhQ5eqTRZjm9z+qQe/T0HQpmiPTqQcIaG/edgKVTUjITfA7AJMKLQHgp04Vylb+G6jocnQQX JqvvP09whbqrABEBAAHCwWUEGAECAA8CGwwFAmgrMyQFCSbODQkACgkQyx8mb86fmYHlgg/9 H5JeDmB4jsreE9Bn621wZk7NMzxy9STxiVKSh8Mq4pb+IDu1RU2iLyetCY1TiJlcxnE362kj njrfAdqyPteHM+LU59NtEbGwrfcXdQoh4XdMuPA5ADetPLma3YiRa3VsVkLwpnR7ilgwQw6u dycEaOxQ7LUXCs0JaGVVP25Z2hMkHBwx6BlW6EZLNgzGI2rswSZ7SKcsBd1IRHVf0miwIFYy j/UEfAFNW+tbtKPNn3xZTLs3quQN7GdYLh+J0XxITpBZaFOpwEKV+VS36pSLnNl0T5wm0E/y scPJ0OVY7ly5Vm1nnoH4licaU5Y1nSkFR/j2douI5P7Cj687WuNMC6CcFd6j72kRfxklOqXw zvy+2NEcXyziiLXp84130yxAKXfluax9sZhhrhKT6VrD45S6N3HxJpXQ/RY/EX35neH2/F7B RgSloce2+zWfpELyS1qRkCUTt1tlGV2p+y2BPfXzrHn2vxvbhEn1QpQ6t+85FKN8YEhJEygJ F0WaMvQMNrk9UAUziVcUkLU52NS9SXqpVg8vgrO0JKx97IXFPcNh0DWsSj/0Y8HO/RDkGXYn FDMj7fZSPKyPQPmEHg+W/KzxSSfdgWIHF2QaQ0b2q1wOSec4Rti52ohmNSY+KNIW/zODhugJ np3900V20aS7eD9K8GTU0TGC1pyz6IVJwIE= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/18/26 08:14, Rong Zhang wrote: > Hi Guenter, > > On Sat, 2026-04-18 at 06:49 -0700, Guenter Roeck wrote: >> On 4/18/26 04:23, Rong Zhang wrote: >>> Hi Sergio, >>> >>> On Sat, 2026-04-18 at 18:31 +0800, Rong Zhang wrote: >>>> Hi Sergio, >>>> >>>> On Sat, 2026-04-18 at 05:37 +0800, kernel test robot wrote: >>>>> Hi Sergio, >>>>> >>>>> kernel test robot noticed the following build errors: >>>>> >>>>> [auto build test ERROR on groeck-staging/hwmon-next] >>>>> [also build test ERROR on linus/master next-20260416] >>>>> [cannot apply to v7.0] >>>>> [If your patch is applied to the wrong git tree, kindly drop us a note. >>>>> And when submitting patch, we suggest to use '--base' as documented in >>>>> https://git-scm.com/docs/git-format-patch#_base_tree_information] >>>>> >>>>> url: https://github.com/intel-lab-lkp/linux/commits/Sergio-Melas/hwmon-yogafan-Massive-hardware-expansion-and-structural-refactoring/20260417-063319 >>>>> base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next >>>>> patch link: https://lore.kernel.org/r/20260413060931.31091-2-sergiomelas%40gmail.com >>>>> patch subject: [PATCH v1] hwmon: (yogafan) Massive hardware expansion and structural refactoring >>>>> config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20260418/202604180539.EuswNnjG-lkp@intel.com/config) >>>>> compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) >>>>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260418/202604180539.EuswNnjG-lkp@intel.com/reproduce) >>>>> >>>>> If you fix the issue in a separate patch/commit (i.e. not just a new version of >>>>> the same patch/commit), kindly add following tags >>>>>> Reported-by: kernel test robot >>>>>> Closes: https://lore.kernel.org/oe-kbuild-all/202604180539.EuswNnjG-lkp@intel.com/ >>>>> >>>>> All errors (new ones prefixed by >>): >>>>> >>>>>>> drivers/hwmon/yogafan.c:712:6: error: call to undeclared function 'wmi_has_guid'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] >>>>> 712 | if (wmi_has_guid(LENOVO_WMI_OTHER_MODE_GUID) || >>>>> | ^ >>>>> 1 error generated. >>>> >>>> Hmm, that's a bit troublesome. Usually we should have been able to >>>> declare `depends on ACPI_WMI if ACPI_WMI' (new syntax since v7.0) or >>>> `depends on ACPI_WMI || !ACPI_WMI' as an optional dependency to prevent >>>> such an issue, but there is no static inline stubs for !ACPI_WMI... >>>> >>>> I'd suggest declaring `select ACPI_WMI if ACPI && X86' in Kconfig as >>>> some drm drivers do, at least for the time being. >>> >>> Of course you'll still need to guard the wmi_has_guid() checks behind >>> `#ifdef CONFIG_ACPI_WMI'. Just forgot to mention that. >>> >>> Hmm, in this way `depends on ACPI_WMI if ACPI_WMI' should also be OK... >> >> I don't know is this is a misspelling, but `depends on ACPI_WMI if ACPI_WMI' >> doesn't make any sense. > > This is the new syntax for optional dependencies since commit > 76df6815dab7 ("kconfig: Support conditional deps using "depends on X if > Y""), which is equivalent to the old-fashioned `depends on ACPI_WMI || > !ACPI_WMI'. > Hmm, interesting. We live and learn. Thanks for the clarification. Guenter