[PATCH 06/11] firmware: arm_scmi: Implement Clock .is_notify_supported callback

[kernel test robot]

Hi Cristian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on soc/for-next]
[also build test WARNING on linus/master v6.8-rc4 next-20240212]
[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-Check-for-notification-support/20240212-203727
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20240212123233.1230090-7-cristian.marussi%40arm.com
patch subject: [PATCH 06/11] firmware: arm_scmi: Implement Clock .is_notify_supported callback
config: arm-defconfig (https://download.01.org/0day-ci/archive/20240213/202402130758.vkfAqrx0-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240213/202402130758.vkfAqrx0-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402130758.vkfAqrx0-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/firmware/arm_scmi/clock.c:853:8: error: implicit declaration of function 'scmi_clock_domain_lookup' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
           clk = scmi_clock_domain_lookup(ci, src_id);
                 ^
>> drivers/firmware/arm_scmi/clock.c:853:6: warning: incompatible integer to pointer conversion assigning to 'struct scmi_clock_info *' from 'int' [-Wint-conversion]
           clk = scmi_clock_domain_lookup(ci, src_id);
               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 1 error generated.


vim +853 drivers/firmware/arm_scmi/clock.c

   842	
   843	static bool scmi_clk_notify_supported(const struct scmi_protocol_handle *ph,
   844					      u8 evt_id, u32 src_id)
   845	{
   846		bool supported;
   847		struct scmi_clock_info *clk;
   848		struct clock_info *ci = ph->get_priv(ph);
   849	
   850		if (evt_id >= ARRAY_SIZE(evt_2_cmd))
   851			return false;
   852	
 > 853		clk = scmi_clock_domain_lookup(ci, src_id);
   854		if (IS_ERR(clk))
   855			return false;
   856	
   857		if (evt_id == SCMI_EVENT_CLOCK_RATE_CHANGED)
   858			supported = clk->rate_changed_notifications;
   859		else
   860			supported = clk->rate_change_requested_notifications;
   861	
   862		return supported;
   863	}
   864	

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