Re: [PATCH] clk: imx: composite-8m: Add imx8m_divider_determine_rate

[kernel test robot]

Hi Adam,

kernel test robot noticed the following build warnings:

[auto build test WARNING on clk/clk-next]
[also build test WARNING on v6.3 next-20230505]
[cannot apply to abelvesa/clk/imx linus/master]
[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-Ford/clk-imx-composite-8m-Add-imx8m_divider_determine_rate/20230507-002453
base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
patch link:    https://lore.kernel.org/r/20230506162403.375212-1-aford173%40gmail.com
patch subject: [PATCH] clk: imx: composite-8m: Add imx8m_divider_determine_rate
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230507/202305070143.iTqgbS75-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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-lab-lkp/linux/commit/d92df3b38fc20beb735cb3b75f118b45d1ae304b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Adam-Ford/clk-imx-composite-8m-Add-imx8m_divider_determine_rate/20230507-002453
        git checkout d92df3b38fc20beb735cb3b75f118b45d1ae304b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/clk/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202305070143.iTqgbS75-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/clk/imx/clk-composite-8m.c:122:5: warning: no previous prototype for 'imx8m_divider_determine_rate' [-Wmissing-prototypes]
     122 | int imx8m_divider_determine_rate(struct clk_hw *hw,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/imx8m_divider_determine_rate +122 drivers/clk/imx/clk-composite-8m.c

   121	
 > 122	int imx8m_divider_determine_rate(struct clk_hw *hw,
   123					      struct clk_rate_request *req)
   124	{
   125		struct clk_divider *divider = to_clk_divider(hw);
   126		int prediv_value;
   127		int div_value;
   128	
   129		/* if read only, just return current value */
   130		if (divider->flags & CLK_DIVIDER_READ_ONLY) {
   131			u32 val;
   132	
   133			val = readl(divider->reg);
   134			prediv_value = val >> divider->shift;
   135			prediv_value &= clk_div_mask(divider->width);
   136	
   137			div_value = val >> PCG_DIV_SHIFT;
   138			div_value &= clk_div_mask(PCG_DIV_WIDTH);
   139	
   140			return divider_ro_determine_rate(hw, req, divider->table,
   141							 PCG_PREDIV_WIDTH + PCG_DIV_WIDTH,
   142							 divider->flags, prediv_value * div_value);
   143		}
   144	
   145		return divider_determine_rate(hw, req, divider->table,
   146					      PCG_PREDIV_WIDTH + PCG_DIV_WIDTH,
   147					      divider->flags);
   148	}
   149	

-- 
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https://github.com/intel/lkp-tests