Re: [PATCH 2/2] clk: loongson1: Refactor to add devicetree support

[kernel test robot <lkp@xxxxxxxxx>]

Hi Keguang,

I love your patch! Yet something to improve:

[auto build test ERROR on 1b929c02afd37871d5afb9d498426f83432e71c2]

url:    https://github.com/intel-lab-lkp/linux/commits/Keguang-Zhang/dt-bindings-clock-Add-binding-for-Loongson-1-clock-driver/20230113-192017
base:   1b929c02afd37871d5afb9d498426f83432e71c2
patch link:    https://lore.kernel.org/r/20230113110738.1505973-3-keguang.zhang%40gmail.com
patch subject: [PATCH 2/2] clk: loongson1: Refactor to add devicetree support
config: mips-loongson1b_defconfig (https://download.01.org/0day-ci/archive/20230119/202301191914.Rs7JrOPY-lkp@xxxxxxxxx/config)
compiler: mipsel-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/b753dca857d9c85e25ba410fe013b78c7c73ca40
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Keguang-Zhang/dt-bindings-clock-Add-binding-for-Loongson-1-clock-driver/20230113-192017
        git checkout b753dca857d9c85e25ba410fe013b78c7c73ca40
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash

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

All error/warnings (new ones prefixed by >>):

>> drivers/clk/clk-loongson1.c:115:23: warning: no previous prototype for 'ls1x_clk_hw_register_pll' [-Wmissing-prototypes]
     115 | struct clk_hw *__init ls1x_clk_hw_register_pll(struct device *dev,
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/clk/clk-loongson1.c: In function 'ls1x_divider_set_rate':
>> drivers/clk/clk-loongson1.c:186:13: warning: the comparison will always evaluate as 'true' for the address of 'lock' will never be NULL [-Waddress]
     186 |         if (&divider->lock)
         |             ^
   drivers/clk/clk-loongson1.c:28:20: note: 'lock' declared here
      28 |         spinlock_t lock;        /* protect access to DIV registers */
         |                    ^~~~
   drivers/clk/clk-loongson1.c:212:13: warning: the comparison will always evaluate as 'true' for the address of 'lock' will never be NULL [-Waddress]
     212 |         if (&divider->lock)
         |             ^
   drivers/clk/clk-loongson1.c:28:20: note: 'lock' declared here
      28 |         spinlock_t lock;        /* protect access to DIV registers */
         |                    ^~~~
   drivers/clk/clk-loongson1.c: At top level:
>> drivers/clk/clk-loongson1.c:226:23: warning: no previous prototype for 'ls1x_clk_hw_register_divider' [-Wmissing-prototypes]
     226 | struct clk_hw *__init ls1x_clk_hw_register_divider(struct device *dev,
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/clk/clk-loongson1.c:310:34: warning: 'ls1x_divider_match' defined but not used [-Wunused-const-variable=]
     310 | static const struct of_device_id ls1x_divider_match[] __initconst = {
         |                                  ^~~~~~~~~~~~~~~~~~
   drivers/clk/clk-loongson1.c:275:34: warning: 'ls1x_pll_match' defined but not used [-Wunused-const-variable=]
     275 | static const struct of_device_id ls1x_pll_match[] __initconst = {
         |                                  ^~~~~~~~~~~~~~
--
   mipsel-linux-ld: arch/mips/loongson32/common/time.o: in function `plat_time_init':
>> time.c:(.init.text+0x8): undefined reference to `ls1x_clk_init'

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