Re: [i915-rt v5 20/21] PREEMPT_RT injection

[kernel test robot <lkp@intel.com>]

Hi Maarten,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-i915/for-linux-next]
[also build test WARNING on drm-tip/drm-tip next-20260121]
[cannot apply to drm-i915/for-linux-next-fixes drm-xe/drm-xe-next linus/master v6.19-rc6]
[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/Maarten-Lankhorst/drm-i915-display-Fix-intel_lpe_audio_irq_handler-for-PREEMPT-RT/20260121-223353
base:   https://gitlab.freedesktop.org/drm/i915/kernel.git for-linux-next
patch link:    https://lore.kernel.org/r/20260121135318.651622-21-dev%40lankhorst.se
patch subject: [i915-rt v5 20/21] PREEMPT_RT injection
config: i386-buildonly-randconfig-002-20260122 (https://download.01.org/0day-ci/archive/20260122/202601221037.9YksOSlP-lkp@intel.com/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/20260122/202601221037.9YksOSlP-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601221037.9YksOSlP-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/memory_hotplug.h:7,
                    from include/linux/mmzone.h:1534,
                    from include/linux/gfp.h:7,
                    from include/linux/slab.h:16,
                    from include/linux/resource_ext.h:11,
                    from include/linux/acpi.h:14,
                    from drivers/platform/x86/lenovo/wmi-gamezone.c:11:
>> drivers/platform/x86/lenovo/wmi-gamezone.c:34:31: warning: 'gz_chain_head' defined but not used [-Wunused-variable]
      34 | static BLOCKING_NOTIFIER_HEAD(gz_chain_head);
         |                               ^~~~~~~~~~~~~
   include/linux/notifier.h:119:39: note: in definition of macro 'BLOCKING_NOTIFIER_HEAD'
     119 |         struct blocking_notifier_head name =                    \
         |                                       ^~~~


vim +/gz_chain_head +34 drivers/platform/x86/lenovo/wmi-gamezone.c

22024ac5366f06 Derek J. Clark 2025-07-01  33  
22024ac5366f06 Derek J. Clark 2025-07-01 @34  static BLOCKING_NOTIFIER_HEAD(gz_chain_head);
22024ac5366f06 Derek J. Clark 2025-07-01  35  

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