[xilinx-xlnx:xlnx_rebase_v5.15_LTS 470/983] drivers/misc/jesd204b/jesd_phy.c:172:6: warning: no previous prototype for function 'jesd204_phy_set_speed'

[xilinx-xlnx:xlnx_rebase_v5.15_LTS 470/983] drivers/misc/jesd204b/jesd_phy.c:172:6: warning: no previous prototype for function 'jesd204_phy_set_speed'

[kernel test robot]

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS
head:   82a6a288ad2ea30575c859f1a5ec2ad014e51528
commit: 4cf40e565c55a749ca7a7bbc7bc998fd3f3a2486 [470/983] misc: jesd204b: Add driver for Xilinx jesd204b
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220315/202203151951.Hsvy84Tb-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6b2f50fb47da3baeee10b1906da6e30ac5d26ec)
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/Xilinx/linux-xlnx/commit/4cf40e565c55a749ca7a7bbc7bc998fd3f3a2486
        git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15_LTS
        git checkout 4cf40e565c55a749ca7a7bbc7bc998fd3f3a2486
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/clk/ drivers/gpu/drm/xlnx/ drivers/media/platform/xilinx/ drivers/misc/jesd204b/ drivers/net/ethernet/xilinx/ drivers/phy/xilinx/ drivers/ptp/

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/misc/jesd204b/jesd_phy.c:97:6: warning: variable 'pll' set but not used [-Wunused-but-set-variable]
           int pll = st->pll;
               ^
>> drivers/misc/jesd204b/jesd_phy.c:172:6: warning: no previous prototype for function 'jesd204_phy_set_speed' [-Wmissing-prototypes]
   void jesd204_phy_set_speed(struct jesd204b_phy_state *st, u32 band)
        ^
   drivers/misc/jesd204b/jesd_phy.c:172:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void jesd204_phy_set_speed(struct jesd204b_phy_state *st, u32 band)
   ^
   static 
   2 warnings generated.


vim +/jesd204_phy_set_speed +172 drivers/misc/jesd204b/jesd_phy.c

   171	
 > 172	void jesd204_phy_set_speed(struct jesd204b_phy_state *st, u32 band)
   173	{
   174		/* make sure we have the correct PLL's selected. */
   175		configure_channel_drp(st, band);
   176	}
   177	

---
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