linux-kernel - drivers/cxl/core/suspend.c:8:6: warning: no previous prototype for 'cxl_mem

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Date:   Wed, 6 Apr 2022 14:37:35 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        0day robot <lkp@...el.com>
Subject: drivers/cxl/core/suspend.c:8:6: warning: no previous prototype for
 'cxl_mem_active'

tree:   https://github.com/intel-lab-lkp/linux/commits/UPDATE-20220406-100617/Dan-Williams/cxl-mem-Disable-suspend/20220403-085917
head:   16a271eb76b492775d76beb93daa896c53d50b95
commit: 16a271eb76b492775d76beb93daa896c53d50b95 PM: CXL: Disable suspend
date:   5 hours ago
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220406/202204061427.aSm1HpbH-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
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/16a271eb76b492775d76beb93daa896c53d50b95
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review UPDATE-20220406-100617/Dan-Williams/cxl-mem-Disable-suspend/20220403-085917
        git checkout 16a271eb76b492775d76beb93daa896c53d50b95
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/cxl/core/

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

All warnings (new ones prefixed by >>):

>> drivers/cxl/core/suspend.c:8:6: warning: no previous prototype for 'cxl_mem_active' [-Wmissing-prototypes]
       8 | bool cxl_mem_active(void)
         |      ^~~~~~~~~~~~~~
>> drivers/cxl/core/suspend.c:13:6: warning: no previous prototype for 'cxl_mem_active_inc' [-Wmissing-prototypes]
      13 | void cxl_mem_active_inc(void)
         |      ^~~~~~~~~~~~~~~~~~
>> drivers/cxl/core/suspend.c:19:6: warning: no previous prototype for 'cxl_mem_active_dec' [-Wmissing-prototypes]
      19 | void cxl_mem_active_dec(void)
         |      ^~~~~~~~~~~~~~~~~~


vim +/cxl_mem_active +8 drivers/cxl/core/suspend.c

     7	
   > 8	bool cxl_mem_active(void)
     9	{
    10		return atomic_read(&mem_active) != 0;
    11	}
    12	
  > 13	void cxl_mem_active_inc(void)
    14	{
    15		atomic_inc(&mem_active);
    16	}
    17	EXPORT_SYMBOL_NS_GPL(cxl_mem_active_inc, CXL);
    18	
  > 19	void cxl_mem_active_dec(void)

-- 
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https://01.org/lkp