netdev - Re: [PATCH net-next 5/6] net: dsa: mv88e6xxx: add VTU ops

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Date:   Fri, 17 Feb 2017 18:30:46 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH net-next 5/6] net: dsa: mv88e6xxx: add VTU ops

Hi Vivien,

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

url:    https://github.com/0day-ci/linux/commits/Vivien-Didelot/net-dsa-mv88e6xxx-88E6390-ATU-VTU/20170217-113559
config: openrisc-allmodconfig (attached as .config)
compiler: or32-linux-gcc (GCC) 4.5.1-or32-1.0rc1
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=openrisc 

All warnings (new ones prefixed by >>):

   drivers/net/dsa/mv88e6xxx/chip.c: In function 'mv88e6xxx_vtu_getnext':
>> drivers/net/dsa/mv88e6xxx/chip.c:1223:6: warning: unused variable 'err'
   drivers/net/dsa/mv88e6xxx/chip.c: In function 'mv88e6xxx_vtu_loadpurge':
   drivers/net/dsa/mv88e6xxx/chip.c:1234:6: warning: unused variable 'err'

vim +/err +1223 drivers/net/dsa/mv88e6xxx/chip.c

749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1207  static void mv88e6xxx_port_fast_age(struct dsa_switch *ds, int port)
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1208  {
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1209  	struct mv88e6xxx_chip *chip = ds->priv;
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1210  	int err;
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1211  
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1212  	mutex_lock(&chip->reg_lock);
4663f0f0 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1213  	err = mv88e6xxx_atu_remove(chip, 0, port);
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1214  	mutex_unlock(&chip->reg_lock);
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1215  
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1216  	if (err)
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1217  		netdev_err(ds->ports[port].netdev, "failed to flush ATU\n");
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1218  }
749efcb8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-22  1219  
5bdaf1f8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1220  static int mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip,
b4e47c0f drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2016-09-29  1221  				 struct mv88e6xxx_vtu_entry *entry)
15d7d7d4 drivers/net/dsa/mv88e6xxx.c      Vivien Didelot 2016-05-10  1222  {
5bdaf1f8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16 @1223  	int err;
7dad08d7 drivers/net/dsa/mv88e6xxx.c      Vivien Didelot 2015-08-13  1224  
5bdaf1f8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1225  	if (!mv88e6xxx_has_vtu(chip))
5bdaf1f8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1226  		return -EOPNOTSUPP;
7dad08d7 drivers/net/dsa/mv88e6xxx.c      Vivien Didelot 2015-08-13  1227  
ab37f7c5 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1228  	return chip->info->ops->vtu_getnext(chip, entry);
7dad08d7 drivers/net/dsa/mv88e6xxx.c      Vivien Didelot 2015-08-13  1229  }
7dad08d7 drivers/net/dsa/mv88e6xxx.c      Vivien Didelot 2015-08-13  1230  
5bdaf1f8 drivers/net/dsa/mv88e6xxx/chip.c Vivien Didelot 2017-02-16  1231  static int mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_chip *chip,

:::::: The code at line 1223 was first introduced by commit
:::::: 5bdaf1f8afa18557bba4f236a53dee259a0469c4 net: dsa: mv88e6xxx: move VTU code to its own file

:::::: TO: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
:::::: CC: 0day robot <fengguang.wu@...el.com>

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