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Date:   Sun, 17 Jan 2021 06:41:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Pavel Šimerda <code@...erda.eu>,
        netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org,
        Pavel Šimerda <code@...erda.eu>
Subject: Re: [PATCH net-next] net: mdio: access c22 registers via debugfs

Hi "Pavel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Pavel-imerda/net-mdio-access-c22-registers-via-debugfs/20210117-053409
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 9ab7e76aefc97a9aa664accb59d6e8dc5e52514a
config: powerpc-adder875_defconfig (attached as .config)
compiler: powerpc-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/22d74f4896850840331d36d6867f7bc5ce728bbd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Pavel-imerda/net-mdio-access-c22-registers-via-debugfs/20210117-053409
        git checkout 22d74f4896850840331d36d6867f7bc5ce728bbd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

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/net/phy/mdio-debugfs.c:170:6: warning: no previous prototype for 'mdio_debugfs_add' [-Wmissing-prototypes]
     170 | void mdio_debugfs_add(struct mii_bus *bus)
         |      ^~~~~~~~~~~~~~~~
>> drivers/net/phy/mdio-debugfs.c:177:6: warning: no previous prototype for 'mdio_debugfs_remove' [-Wmissing-prototypes]
     177 | void mdio_debugfs_remove(struct mii_bus *bus)
         |      ^~~~~~~~~~~~~~~~~~~
>> drivers/net/phy/mdio-debugfs.c:184:12: warning: no previous prototype for 'mdio_debugfs_init' [-Wmissing-prototypes]
     184 | int __init mdio_debugfs_init(void)
         |            ^~~~~~~~~~~~~~~~~
>> drivers/net/phy/mdio-debugfs.c:192:13: warning: no previous prototype for 'mdio_debugfs_exit' [-Wmissing-prototypes]
     192 | void __exit mdio_debugfs_exit(void)
         |             ^~~~~~~~~~~~~~~~~


vim +/mdio_debugfs_add +170 drivers/net/phy/mdio-debugfs.c

   169	
 > 170	void mdio_debugfs_add(struct mii_bus *bus)
   171	{
   172		bus->debugfs_dentry = debugfs_create_dir(dev_name(&bus->dev), mdio_debugfs_dentry);
   173		debugfs_create_file("control", 0600, bus->debugfs_dentry, bus, &mdio_debug_fops);
   174	}
   175	EXPORT_SYMBOL_GPL(mdio_debugfs_add);
   176	
 > 177	void mdio_debugfs_remove(struct mii_bus *bus)
   178	{
   179		debugfs_remove(bus->debugfs_dentry);
   180		bus->debugfs_dentry = NULL;
   181	}
   182	EXPORT_SYMBOL_GPL(mdio_debugfs_remove);
   183	
 > 184	int __init mdio_debugfs_init(void)
   185	{
   186		mdio_debugfs_dentry = debugfs_create_dir("mdio", NULL);
   187	
   188		return PTR_ERR_OR_ZERO(mdio_debugfs_dentry);
   189	}
   190	module_init(mdio_debugfs_init);
   191	
 > 192	void __exit mdio_debugfs_exit(void)

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

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