Re: [RFC PATCH] PM: clk: Avoid lockdep warning between prepare lock and &psd->lock

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

Hi Douglas,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on clk/clk-next pavel-leds/for-next linus/master v6.0-rc6 next-20220921]
[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/Douglas-Anderson/PM-clk-Avoid-lockdep-warning-between-prepare-lock-and-psd-lock/20220922-235116
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: hexagon-randconfig-r045-20220922 (https://download.01.org/0day-ci/archive/20220923/202209231304.p14ZsMhw-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/ca0a9a41d27b3cabb3a7f6f4300011844aea2a68
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Douglas-Anderson/PM-clk-Avoid-lockdep-warning-between-prepare-lock-and-psd-lock/20220922-235116
        git checkout ca0a9a41d27b3cabb3a7f6f4300011844aea2a68
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/clk/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/clk/clk.c:153:6: warning: no previous prototype for function '__clk_prepare_lock' [-Wmissing-prototypes]
   void __clk_prepare_lock(void)
        ^
   drivers/clk/clk.c:153:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __clk_prepare_lock(void)
   ^
   static 
>> drivers/clk/clk.c:159:6: warning: no previous prototype for function '__clk_prepare_unlock' [-Wmissing-prototypes]
   void __clk_prepare_unlock(void)
        ^
   drivers/clk/clk.c:159:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __clk_prepare_unlock(void)
   ^
   static 
   2 warnings generated.


vim +/__clk_prepare_lock +153 drivers/clk/clk.c

   151	
   152	/* Non-static wrapper of lock function for drivers/base/power/clock_ops.c */
 > 153	void __clk_prepare_lock(void)
   154	{
   155		clk_prepare_lock();
   156	}
   157	
   158	/* Non-static wrapper of unlock function for drivers/base/power/clock_ops.c */
 > 159	void __clk_prepare_unlock(void)
   160	{
   161		clk_prepare_unlock();
   162	}
   163	

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