Re: [RFC PATCH 5/7] firmware: arm_scmi: Add System Telemetry chardev/ioctls API

Re: [RFC PATCH 5/7] firmware: arm_scmi: Add System Telemetry chardev/ioctls API

[kernel test robot]

Hi Cristian,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on soc/for-next]
[also build test WARNING on trace/for-next linus/master v6.16-rc3 next-20250623]
[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/Cristian-Marussi/firmware-arm_scmi-Define-a-common-SCMI_MAX_PROTOCOLS-value/20250621-033227
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20250620192813.2463367-6-cristian.marussi%40arm.com
patch subject: [RFC PATCH 5/7] firmware: arm_scmi: Add System Telemetry chardev/ioctls API
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20250623/202506231727.3ZUlxZQr-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250623/202506231727.3ZUlxZQr-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/202506231727.3ZUlxZQr-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/firmware/arm_scmi/scmi_system_telemetry.c:921:44: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
     921 | static __poll_t scmi_tlm_poll(struct file *, struct poll_table_struct *)
         |                                            ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:921:72: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
     921 | static __poll_t scmi_tlm_poll(struct file *, struct poll_table_struct *)
         |                                                                        ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:1180:48: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
    1180 | static long scmi_tlm_compat_ioctl(struct file *, unsigned int, unsigned long)
         |                                                ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:1180:62: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
    1180 | static long scmi_tlm_compat_ioctl(struct file *, unsigned int, unsigned long)
         |                                                              ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:1180:77: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
    1180 | static long scmi_tlm_compat_ioctl(struct file *, unsigned int, unsigned long)
         |                                                                             ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:1185:39: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
    1185 | static int scmi_tlm_mmap(struct file *, struct vm_area_struct *)
         |                                       ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:1185:64: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions]
    1185 | static int scmi_tlm_mmap(struct file *, struct vm_area_struct *)
         |                                                                ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:361:16: warning: stack frame size (1064) exceeds limit (1024) in 'available_update_intervals_ms_show' [-Wframe-larger-than]
     361 | static ssize_t available_update_intervals_ms_show(struct device *dev,
         |                ^
   drivers/firmware/arm_scmi/scmi_system_telemetry.c:681:16: warning: stack frame size (1064) exceeds limit (1024) in 'grp_available_intervals_show' [-Wframe-larger-than]
     681 | static ssize_t grp_available_intervals_show(struct device *dev,
         |                ^
   9 warnings generated.


vim +921 drivers/firmware/arm_scmi/scmi_system_telemetry.c

   920	
 > 921	static __poll_t scmi_tlm_poll(struct file *, struct poll_table_struct *)
   922	{
   923		return 0;
   924	}
   925	

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