Re: [PATCH] hwmon: gpd-fan: replace custom EC I/O with kernel ec_read/ec_write

From: kernel test robot

Date: Fri Feb 27 2026 - 06:11:15 EST


Hi Morduan,

kernel test robot noticed the following build errors:

[auto build test ERROR on groeck-staging/hwmon-next]
[also build test ERROR on linus/master v7.0-rc1 next-20260226]
[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/Morduan-Zang/hwmon-gpd-fan-replace-custom-EC-I-O-with-kernel-ec_read-ec_write/20260227-105255
base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
patch link: https://lore.kernel.org/r/53C09CAECC90EB98%2B20260227024945.151198-1-zhangdandan%40uniontech.com
patch subject: [PATCH] hwmon: gpd-fan: replace custom EC I/O with kernel ec_read/ec_write
config: x86_64-randconfig-014-20260227 (https://download.01.org/0day-ci/archive/20260227/202602271850.wkrqotlH-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260227/202602271850.wkrqotlH-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602271850.wkrqotlH-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "ec_read" [drivers/hwmon/gpd-fan.ko] undefined!
>> ERROR: modpost: "ec_write" [drivers/hwmon/gpd-fan.ko] undefined!

--
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