Re: [PATCH RFC net-next 2/5] net: dsa: mv88e6xxx: report the default interface mode for the port

From: kernel test robot <lkp@intel.com>
To: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org
Subject: Re: [PATCH RFC net-next 2/5] net: dsa: mv88e6xxx: report the default interface mode for the port
Date: Wed, 6 Jul 2022 19:04:08 +0800	[thread overview]
Message-ID: <202207061812.FVnuLMD9-lkp@intel.com> (raw)
In-Reply-To: <E1o8f9s-0059a6-3S@rmk-PC.armlinux.org.uk>

Hi "Russell,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on net-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Russell-King-Oracle/net-dsa-add-support-for-retrieving-the-interface-mode/20220705-175304
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 874bdbfe624e577687c2053a26aab44715c68453
config: x86_64-randconfig-a012-20220704 (https://download.01.org/0day-ci/archive/20220706/202207061812.FVnuLMD9-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f553287b588916de09c66e3e32bf75e5060f967f)
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/9423b094f4b1e0c313bbdd0e65cd0824b51e3016
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Russell-King-Oracle/net-dsa-add-support-for-retrieving-the-interface-mode/20220705-175304
        git checkout 9423b094f4b1e0c313bbdd0e65cd0824b51e3016
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/dsa/mv88e6xxx/

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

All warnings (new ones prefixed by >>):

>> drivers/net/dsa/mv88e6xxx/chip.c:861:5: warning: unused variable 'cmode' [-Wunused-variable]
           u8 cmode = chip->ports[port].cmode;
              ^
   1 warning generated.

vim +/cmode +861 drivers/net/dsa/mv88e6xxx/chip.c

   855	
   856	static void mv88e6xxx_get_caps(struct dsa_switch *ds, int port,
   857				       struct phylink_config *config,
   858				       phy_interface_t *default_interface)
   859	{
   860		struct mv88e6xxx_chip *chip = ds->priv;
 > 861		u8 cmode = chip->ports[port].cmode;
   862	
   863		chip->info->ops->phylink_get_caps(chip, port, config,
   864						  default_interface);
   865	
   866		/* Internal ports need GMII for PHYLIB */
   867		if (mv88e6xxx_phy_is_internal(ds, port))
   868			__set_bit(PHY_INTERFACE_MODE_GMII,
   869				  config->supported_interfaces);
   870	}
   871	

-- 
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https://01.org/lkp