linux-kernel - [printk:for-5.15-printk-index 4/5] kernel/printk/index.c:140:6: warning: no previous prototype for 'pi_create

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Date:   Mon, 19 Jul 2021 23:33:11 +0800
From:   kernel test robot <lkp@...el.com>
To:     Chris Down <chris@...isdown.name>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Petr Mladek <pmladek@...e.com>
Subject: [printk:for-5.15-printk-index 4/5] kernel/printk/index.c:140:6:
 warning: no previous prototype for 'pi_create_file'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git for-5.15-printk-index
head:   ad7d61f159db73974f1b0352f21afe04b0bbd920
commit: 337015573718b161891a3473d25f59273f2e626b [4/5] printk: Userspace format indexing support
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 10.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git/commit/?id=337015573718b161891a3473d25f59273f2e626b
        git remote add printk https://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git
        git fetch --no-tags printk for-5.15-printk-index
        git checkout 337015573718b161891a3473d25f59273f2e626b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc 

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 >>):

>> kernel/printk/index.c:140:6: warning: no previous prototype for 'pi_create_file' [-Wmissing-prototypes]
     140 | void pi_create_file(struct module *mod)
         |      ^~~~~~~~~~~~~~
>> kernel/printk/index.c:146:6: warning: no previous prototype for 'pi_remove_file' [-Wmissing-prototypes]
     146 | void pi_remove_file(struct module *mod)
         |      ^~~~~~~~~~~~~~


vim +/pi_create_file +140 kernel/printk/index.c

   139	
 > 140	void pi_create_file(struct module *mod)
   141	{
   142		debugfs_create_file(pi_get_module_name(mod), 0444, dfs_index,
   143					       mod, &dfs_index_fops);
   144	}
   145	
 > 146	void pi_remove_file(struct module *mod)
   147	{
   148		debugfs_remove(debugfs_lookup(pi_get_module_name(mod), dfs_index));
   149	}
   150	

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

Download attachment ".config.gz" of type "application/gzip" (68530 bytes)