[PATCH v01] mailbox/pcc.c: add query channel function

[kernel test robot]

Hi Adam,

kernel test robot noticed the following build warnings:

[auto build test WARNING on jassibrar-mailbox/for-next]
[also build test WARNING on rafael-pm/linux-next rafael-pm/bleeding-edge soc/for-next linus/master v7.1-rc6 next-20260603]
[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/Adam-Young/mailbox-pcc-c-add-query-channel-function/20260605-044323
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox.git for-next
patch link:    https://lore.kernel.org/r/20260604203749.168752-1-admiyo%40os.amperecomputing.com
patch subject: [PATCH v01] mailbox/pcc.c:  add query channel function
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20260605/202606052232.LAlOTWJr-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 7917772d7d61384696c61102c08c2ea158e610fa)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260605/202606052232.LAlOTWJr-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/202606052232.LAlOTWJr-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: drivers/mailbox/pcc.c:358 function parameter 'q_chan' not described in 'pcc_mbox_query_channel'
>> Warning: drivers/mailbox/pcc.c:358 function parameter 'subspace_id' not described in 'pcc_mbox_query_channel'
>> Warning: drivers/mailbox/pcc.c:358 function parameter 'q_chan' not described in 'pcc_mbox_query_channel'
>> Warning: drivers/mailbox/pcc.c:358 function parameter 'subspace_id' not described in 'pcc_mbox_query_channel'

--
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