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... 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... 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@i...) 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@i...)

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