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Message-ID: <202301210746.xjCzhDc3-lkp@intel.com>
Date:   Sat, 21 Jan 2023 07:34:12 +0800
From:   kernel test robot <lkp@...el.com>
To:     Vladimir Oltean <olteanv@...il.com>,
        Frank Wunderlich <frank-w@...lic-files.de>
Cc:     oe-kbuild-all@...ts.linux.dev, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Golle <daniel@...rotopia.org>
Subject: Re: [PATCH] mt7530 don't make the CPU port a VLAN user port

Hi Vladimir,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.2-rc4 next-20230120]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Vladimir-Oltean/mt7530-don-t-make-the-CPU-port-a-VLAN-user-port/20230121-012326
patch link:    https://lore.kernel.org/r/20230120172132.rfo3kf4fmkxtw4cl%40skbuf
patch subject: [PATCH] mt7530 don't make the CPU port a VLAN user port
config: i386-randconfig-a005 (https://download.01.org/0day-ci/archive/20230121/202301210746.xjCzhDc3-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/563aaac5703ee8530858faf04f93f30785d74cf6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vladimir-Oltean/mt7530-don-t-make-the-CPU-port-a-VLAN-user-port/20230121-012326
        git checkout 563aaac5703ee8530858faf04f93f30785d74cf6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/dsa/

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

All warnings (new ones prefixed by >>):

   drivers/net/dsa/mt7530.c: In function 'mt7530_port_vlan_filtering':
>> drivers/net/dsa/mt7530.c:1525:26: warning: unused variable 'cpu_dp' [-Wunused-variable]
    1525 |         struct dsa_port *cpu_dp = dp->cpu_dp;
         |                          ^~~~~~


vim +/cpu_dp +1525 drivers/net/dsa/mt7530.c

83163f7dca5684 Sean Wang        2017-12-15  1519  
83163f7dca5684 Sean Wang        2017-12-15  1520  static int
89153ed6ebc148 Vladimir Oltean  2021-02-13  1521  mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
89153ed6ebc148 Vladimir Oltean  2021-02-13  1522  			   struct netlink_ext_ack *extack)
83163f7dca5684 Sean Wang        2017-12-15  1523  {
1f9a6abecf538c Frank Wunderlich 2022-06-10  1524  	struct dsa_port *dp = dsa_to_port(ds, port);
1f9a6abecf538c Frank Wunderlich 2022-06-10 @1525  	struct dsa_port *cpu_dp = dp->cpu_dp;
1f9a6abecf538c Frank Wunderlich 2022-06-10  1526  
83163f7dca5684 Sean Wang        2017-12-15  1527  	if (vlan_filtering) {
83163f7dca5684 Sean Wang        2017-12-15  1528  		/* The port is being kept as VLAN-unaware port when bridge is
83163f7dca5684 Sean Wang        2017-12-15  1529  		 * set up with vlan_filtering not being set, Otherwise, the
83163f7dca5684 Sean Wang        2017-12-15  1530  		 * port and the corresponding CPU port is required the setup
83163f7dca5684 Sean Wang        2017-12-15  1531  		 * for becoming a VLAN-aware port.
83163f7dca5684 Sean Wang        2017-12-15  1532  		 */
83163f7dca5684 Sean Wang        2017-12-15  1533  		mt7530_port_set_vlan_aware(ds, port);
563aaac5703ee8 Vladimir Oltean  2023-01-20  1534  //		mt7530_port_set_vlan_aware(ds, cpu_dp->index);
e3ee07d14fac20 Vladimir Oltean  2019-04-28  1535  	} else {
e3ee07d14fac20 Vladimir Oltean  2019-04-28  1536  		mt7530_port_set_vlan_unaware(ds, port);
83163f7dca5684 Sean Wang        2017-12-15  1537  	}
83163f7dca5684 Sean Wang        2017-12-15  1538  
83163f7dca5684 Sean Wang        2017-12-15  1539  	return 0;
83163f7dca5684 Sean Wang        2017-12-15  1540  }
83163f7dca5684 Sean Wang        2017-12-15  1541  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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