Re: [PATCH] Input: synaptics - support the touchpad LED on RMI function $30

From: kernel test robot

Date: Fri Oct 30 2026 - 21:24:29 EST


Hi ahmad,

kernel test robot noticed the following build errors:

[auto build test ERROR on dtor-input/next]
[also build test ERROR on dtor-input/for-linus hid/for-next linus/master v7.3 next-20261029]
[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/ahmad-baghereslami/Input-synaptics-support-the-touchpad-LED-on-RMI-function-30/20261030-103821
base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
patch link: https://lore.kernel.org/r/20261030070821.1716595-1-ahmad.b1995%40gmail.com
patch subject: [PATCH] Input: synaptics - support the touchpad LED on RMI function $30
config: um-randconfig-1000-20261031 (https://download.01.org/0day-ci/archive/20261031/202610310804.T0iDq0C6-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261031/202610310804.T0iDq0C6-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/202610310804.T0iDq0C6-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

/usr/bin/ld: drivers/input/mouse/synaptics.o: in function `synaptics_disconnect':
>> synaptics.c:(.text+0x22dc): undefined reference to `led_classdev_unregister'
/usr/bin/ld: drivers/input/mouse/synaptics.o: in function `synaptics_init_ps2':
>> synaptics.c:(.text+0x406d): undefined reference to `led_classdev_register_ext'
collect2: error: ld returned 1 exit status

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki