Re: [RFC PATCH v2] media: v4l2-common: Add a helper for obtaining the clock producer

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

Hi Mehdi,

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

[auto build test ERROR on linus/master]
[also build test ERROR on sailus-media-tree/master v6.14-rc6 next-20250311]
[cannot apply to 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/Mehdi-Djait/media-v4l2-common-Add-a-helper-for-obtaining-the-clock-producer/20250310-202543
base:   linus/master
patch link:    https://lore.kernel.org/r/20250310122305.209534-1-mehdi.djait%40linux.intel.com
patch subject: [RFC PATCH v2] media: v4l2-common: Add a helper for obtaining the clock producer
config: i386-randconfig-054-20250311 (https://download.01.org/0day-ci/archive/20250311/202503112248.4yP7WmdR-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250311/202503112248.4yP7WmdR-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/202503112248.4yP7WmdR-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: drivers/media/v4l2-core/v4l2-common.o: in function `devm_v4l2_sensor_clk_get':
>> drivers/media/v4l2-core/v4l2-common.c:667: undefined reference to `__clk_hw_register_fixed_rate'


vim +667 drivers/media/v4l2-core/v4l2-common.c

   642	
   643	struct clk *devm_v4l2_sensor_clk_get(struct device *dev, const char *id)
   644	{
   645		struct clk_hw *clk_hw;
   646		struct clk *clk;
   647		u32 rate;
   648		int ret;
   649	
   650		clk = devm_clk_get_optional(dev, id);
   651		if (clk)
   652			return clk;
   653	
   654		if (!is_acpi_node(dev_fwnode(dev)))
   655			return ERR_PTR(-ENOENT);
   656	
   657		ret = device_property_read_u32(dev, "clock-frequency", &rate);
   658		if (ret)
   659			return ERR_PTR(ret);
   660	
   661		if (!id) {
   662			id = devm_kasprintf(dev, GFP_KERNEL, "clk-%s", dev_name(dev));
   663			if (!id)
   664				return ERR_PTR(-ENOMEM);
   665		}
   666	
 > 667		clk_hw = devm_clk_hw_register_fixed_rate(dev, id, NULL, 0, rate);

-- 
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