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

[kernel test robot]

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-buildonly-randconfig-004-20260227 (https://download.01.org/0day-ci/archive/20260227/202602271410.w0cX8IID-lkp@xxxxxxxxx/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260227/202602271410.w0cX8IID-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/202602271410.w0cX8IID-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   drivers/hwmon/gpd-fan.c: In function 'gpd_ecram_read':
>> drivers/hwmon/gpd-fan.c:255:16: error: implicit declaration of function 'ec_read'; did you mean 'up_read'? [-Wimplicit-function-declaration]
     255 |         *val = ec_read(offset, val);
         |                ^~~~~~~
         |                up_read
   drivers/hwmon/gpd-fan.c: In function 'gpd_ecram_write':
>> drivers/hwmon/gpd-fan.c:260:9: error: implicit declaration of function 'ec_write'; did you mean 'up_write'? [-Wimplicit-function-declaration]
     260 |         ec_write(offset, value);
         |         ^~~~~~~~
         |         up_write


vim +255 drivers/hwmon/gpd-fan.c

   251	
   252	// Helper functions to handle EC read/write
   253	static void gpd_ecram_read(u16 offset, u8 *val)
   254	{
 > 255		*val = ec_read(offset, val);
   256	}
   257	
   258	static void gpd_ecram_write(u16 offset, u8 value)
   259	{
 > 260		ec_write(offset, value);
   261	}
   262	

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