Re: [PATCH 01/12] media: stm32: dcmi: Switch from __maybe_unused to pm_sleep_ptr()

kernel test robot
2025-12-20T17:15:34Z

Hi Alain,

kernel test robot noticed the following build warnings:

[auto build test WARNING on atorgue-stm32/stm32-next]
[also build test WARNING on robh/for-next linus/master v6.19-rc1 next-20251219]
[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/Alain-Volmat/media-stm32-dcmi-Switch-from-__maybe_unused-to-pm_sleep_ptr/20251219-024836
base: https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next
patch link: https://lore.kernel.org/r/20251218-stm32-dcmi-dma-chaining-v1-1-39948ca6cbf6%40foss.st.com
patch subject: [PATCH 01/12] media: stm32: dcmi: Switch from __maybe_unused to pm_sleep_ptr()
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20251221/202512210044.xNNW6QJZ-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251221/202512210044.xNNW6QJZ-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/202512210044.xNNW6QJZ-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/media/platform/st/stm32/stm32-dcmi.c:2127:12: warning: 'dcmi_resume' defined but not used [-Wunused-function]
2127 | static int dcmi_resume(struct device *dev)
| ^~~~~~~~~~~
>> drivers/media/platform/st/stm32/stm32-dcmi.c:2116:12: warning: 'dcmi_suspend' defined but not used [-Wunused-function]
2116 | static int dcmi_suspend(struct device *dev)
| ^~~~~~~~~~~~

vim +/dcmi_resume +2127 drivers/media/platform/st/stm32/stm32-dcmi.c

2115
> 2116 static int dcmi_suspend(struct device *dev)
2117 {
2118 /* disable clock */
2119 pm_runtime_force_suspend(dev);
2120
2121 /* change pinctrl state */
2122 pinctrl_pm_select_sleep_state(dev);
2123
2124 return 0;
2125 }
2126
> 2127 static int dcmi_resume(struct device *dev)
2128 {
2129 /* restore pinctl default state */
2130 pinctrl_pm_select_default_state(dev);
2131
2132 /* clock enable */
2133 pm_runtime_force_resume(dev);
2134
2135 return 0;
2136 }
2137

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0-DAY CI Kernel Test Service