Re: [PATCH v14 06/11] v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL

kernel test robot
2023-12-05T22:30:58Z

Hi Yunke,

kernel test robot noticed the following build warnings:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on usb/usb-next usb/usb-linus linuxtv-media-stage/master linus/master v6.7-rc4 next-20231205]
[cannot apply to media-tree/master sailus-media-tree/streams]
[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/Yunke-Cao/media-v4l2_ctrl-Add-V4L2_CTRL_TYPE_RECT/20231201-152501
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link: https://lore.kernel.org/r/20231201071907.3080126-7-yunkec%40google.com
patch subject: [PATCH v14 06/11] v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL
config: alpha-randconfig-r122-20231202 (https://download.01.org/0day-ci/archive/20231206/202312060621.h935AOSJ-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231206/202312060621.h935AOSJ-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/202312060621.h935AOSJ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/media/v4l2-core/v4l2-ctrls-core.c:309:6: sparse: sparse: symbol 'v4l2_ctrl_type_op_minimum' was not declared. Should it be static?
>> drivers/media/v4l2-core/v4l2-ctrls-core.c:315:6: sparse: sparse: symbol 'v4l2_ctrl_type_op_maximum' was not declared. Should it be static?
drivers/media/v4l2-core/v4l2-ctrls-core.c: note: in included file (through include/linux/preempt.h, include/linux/spinlock.h, include/linux/mmzone.h, ...):
include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true

vim +/v4l2_ctrl_type_op_minimum +309 drivers/media/v4l2-core/v4l2-ctrls-core.c

308
> 309 void v4l2_ctrl_type_op_minimum(const struct v4l2_ctrl *ctrl, u32 from_idx,
310 union v4l2_ctrl_ptr ptr)
311 {
312 __v4l2_ctrl_type_op_init(ctrl, from_idx, V4L2_CTRL_WHICH_MIN_VAL, ptr);
313 }
314
> 315 void v4l2_ctrl_type_op_maximum(const struct v4l2_ctrl *ctrl, u32 from_idx,
316 union v4l2_ctrl_ptr ptr)
317 {
318 __v4l2_ctrl_type_op_init(ctrl, from_idx, V4L2_CTRL_WHICH_MAX_VAL, ptr);
319 }
320

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