Hi Saravana,

FYI, the error/warning still remains.

tree:   https://github.com/intel/linux-intel-lts.git 4.19/android_r
head:   d12f442b46a8bc16c4f3f7644a56fdf4133149c3
commit: 3179a1a38d96f565a2229b9244285c6abf62b10a [15919/23449] ANDROID: GKI: clk: Add support for voltage voting
config: microblaze-randconfig-r022-20210604 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
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/linux-intel-lts/commit/3179a1a38d96f565a2229b9244285c6abf62b10a
        git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-linux-intel-lts 4.19/android_r
        git checkout 3179a1a38d96f565a2229b9244285c6abf62b10a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze 

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

All warnings (new ones prefixed by >>):

   drivers/clk/clk.c: In function 'clk_update_vdd':
   drivers/clk/clk.c:624:24: warning: variable 'ignore' set but not used [-Wunused-but-set-variable]
     624 |  int level, rc = 0, i, ignore;
         |                        ^~~~~~
   drivers/clk/clk.c: At top level:
>> drivers/clk/clk.c:3145:5: warning: no previous prototype for 'clk_set_flags' [-Wmissing-prototypes]
    3145 | int clk_set_flags(struct clk *clk, unsigned long flags)
         |     ^~~~~~~~~~~~~
>> drivers/clk/clk.c:3157:6: warning: no previous prototype for 'clk_debug_print_hw' [-Wmissing-prototypes]
    3157 | void clk_debug_print_hw(struct clk_core *clk, struct seq_file *f)
         |      ^~~~~~~~~~~~~~~~~~
   drivers/clk/clk.c:4257: warning: Function parameter or member 'dev' not described in 'devm_clk_unregister'
   drivers/clk/clk.c:4455: warning: Function parameter or member 'get_hw' not described in 'of_clk_provider'


vim +/clk_set_flags +3145 drivers/clk/clk.c

  3144	
> 3145	int clk_set_flags(struct clk *clk, unsigned long flags)
  3146	{
  3147		if (!clk)
  3148			return 0;
  3149	
  3150		if (!clk->core->ops->set_flags)
  3151			return -EINVAL;
  3152	
  3153		return clk->core->ops->set_flags(clk->core->hw, flags);
  3154	}
  3155	EXPORT_SYMBOL_GPL(clk_set_flags);
  3156	
> 3157	void clk_debug_print_hw(struct clk_core *clk, struct seq_file *f)
  3158	{
  3159	}
  3160	EXPORT_SYMBOL(clk_debug_print_hw);
  3161	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org