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From: kernel test robot <lkp@intel.com>
To: Hans Schultz <netdev@kapio-technology.com>,
	davem@davemloft.net, kuba@kernel.org
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
	netdev@vger.kernel.org,
	Hans Schultz <netdev@kapio-technology.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Jiri Pirko <jiri@resnulli.us>,
	Ivan Vecera <ivecera@redhat.com>, Roopa Prabhu <roopa@nvidia.com>,
	Nikolay Aleksandrov <razor@blackwall.org>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Ido Schimmel <idosch@nvidia.com>,
	linux-kernel@vger.kernel.org, bridge@lists.linux-foundation.org,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v4 net-next 5/6] net: dsa: mv88e6xxx: mac-auth/MAB implementation
Date: Fri, 8 Jul 2022 17:46:12 +0800	[thread overview]
Message-ID: <202207081751.PPV8GRpf-lkp@intel.com> (raw)
In-Reply-To: <20220707152930.1789437-6-netdev@kapio-technology.com>

Hi Hans,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net/master]
[also build test WARNING on shuah-kselftest/next linus/master v5.19-rc5]
[cannot apply to net-next/master next-20220707]
[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/Hans-Schultz/Extend-locked-port-feature-with-FDB-locked-flag-MAC-Auth-MAB/20220707-233246
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 07266d066301b97ad56a693f81b29b7ced429b27
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220708/202207081751.PPV8GRpf-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 562c3467a6738aa89203f72fc1d1343e5baadf3c)
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/74f76ae0b0d4b12864a0cf5ff3c0685bc420aea3
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Hans-Schultz/Extend-locked-port-feature-with-FDB-locked-flag-MAC-Auth-MAB/20220707-233246
        git checkout 74f76ae0b0d4b12864a0cf5ff3c0685bc420aea3
        # 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:1696:6: warning: variable 'err' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
           if (mv88e6xxx_port_is_locked(chip, port))
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/mv88e6xxx/chip.c:1698:6: note: uninitialized use occurs here
           if (err)
               ^~~
   drivers/net/dsa/mv88e6xxx/chip.c:1696:2: note: remove the 'if' if its condition is always true
           if (mv88e6xxx_port_is_locked(chip, port))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/mv88e6xxx/chip.c:1694:9: note: initialize the variable 'err' to silence this warning
           int err;
                  ^
                   = 0
   1 warning generated.


vim +1696 drivers/net/dsa/mv88e6xxx/chip.c

  1690	
  1691	static void mv88e6xxx_port_fast_age(struct dsa_switch *ds, int port)
  1692	{
  1693		struct mv88e6xxx_chip *chip = ds->priv;
  1694		int err;
  1695	
> 1696		if (mv88e6xxx_port_is_locked(chip, port))
  1697			err = mv88e6xxx_atu_locked_entry_flush(ds, port);
  1698		if (err)
  1699			dev_err(chip->ds->dev, "p%d: failed to clear locked entries: %d\n",
  1700				port, err);
  1701	
  1702		mv88e6xxx_reg_lock(chip);
  1703		err = mv88e6xxx_port_fast_age_fid(chip, port, 0);
  1704		mv88e6xxx_reg_unlock(chip);
  1705	
  1706		if (err)
  1707			dev_err(chip->ds->dev, "p%d: failed to flush ATU: %d\n",
  1708				port, err);
  1709	}
  1710	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

  reply	other threads:[~2022-07-08  9:46 UTC|newest]

Thread overview: 115+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-07 15:29 [PATCH v4 net-next 0/6] Extend locked port feature with FDB locked flag (MAC-Auth/MAB) Hans Schultz
2022-07-07 15:29 ` [Bridge] " Hans Schultz
2022-07-07 15:29 ` [PATCH v4 net-next 1/6] net: bridge: add locked entry fdb flag to extend locked port feature Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-10  8:20   ` Ido Schimmel
2022-07-10  8:20     ` [Bridge] " Ido Schimmel
2022-07-07 15:29 ` [PATCH v4 net-next 2/6] net: switchdev: add support for offloading of fdb locked flag Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-08  8:54   ` Vladimir Oltean
2022-07-08  8:54     ` [Bridge] " Vladimir Oltean
2022-08-02  8:27     ` netdev
2022-08-02  8:27       ` [Bridge] " netdev
2022-08-02 10:13     ` netdev
2022-08-02 10:13       ` [Bridge] " netdev
2022-07-07 15:29 ` [PATCH v4 net-next 3/6] drivers: net: dsa: add locked fdb entry flag to drivers Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-08  7:12   ` kernel test robot
2022-07-08  8:49   ` Vladimir Oltean
2022-07-08  8:49     ` [Bridge] " Vladimir Oltean
2022-07-08  9:06     ` netdev
2022-07-08  9:06       ` [Bridge] " netdev
2022-07-08  9:15       ` Vladimir Oltean
2022-07-08  9:15         ` [Bridge] " Vladimir Oltean
2022-07-08  9:27         ` netdev
2022-07-08  9:27           ` [Bridge] " netdev
2022-07-08  9:50         ` netdev
2022-07-08  9:50           ` [Bridge] " netdev
2022-07-08 11:56           ` Vladimir Oltean
2022-07-08 11:56             ` [Bridge] " Vladimir Oltean
2022-07-08 12:34             ` netdev
2022-07-08 12:34               ` [Bridge] " netdev
2022-07-10  8:35               ` Ido Schimmel
2022-07-10  8:35                 ` [Bridge] " Ido Schimmel
2022-07-13  7:09                 ` netdev
2022-07-13  7:09                   ` [Bridge] " netdev
2022-07-13 12:39                   ` Ido Schimmel
2022-07-13 12:39                     ` [Bridge] " Ido Schimmel
2022-07-17 12:21                     ` netdev
2022-07-17 12:21                       ` [Bridge] " netdev
2022-07-17 12:57                       ` Vladimir Oltean
2022-07-17 12:57                         ` [Bridge] " Vladimir Oltean
2022-07-17 13:09                         ` netdev
2022-07-17 13:09                           ` [Bridge] " netdev
2022-07-17 13:59                           ` Vladimir Oltean
2022-07-17 13:59                             ` [Bridge] " Vladimir Oltean
2022-07-17 14:57                             ` netdev
2022-07-17 14:57                               ` [Bridge] " netdev
2022-07-17 15:08                               ` Vladimir Oltean
2022-07-17 15:08                                 ` [Bridge] " Vladimir Oltean
2022-07-17 16:10                                 ` netdev
2022-07-17 16:10                                   ` [Bridge] " netdev
2022-07-21 11:54                                   ` Vladimir Oltean
2022-07-21 11:54                                     ` [Bridge] " Vladimir Oltean
2022-07-17 15:20                       ` Ido Schimmel
2022-07-17 15:20                         ` [Bridge] " Ido Schimmel
2022-07-17 15:53                         ` netdev
2022-07-17 15:53                           ` [Bridge] " netdev
2022-07-21 11:59                           ` Vladimir Oltean
2022-07-21 11:59                             ` [Bridge] " Vladimir Oltean
2022-07-21 13:27                             ` Ido Schimmel
2022-07-21 13:27                               ` [Bridge] " Ido Schimmel
2022-07-21 14:20                               ` Vladimir Oltean
2022-07-21 14:20                                 ` [Bridge] " Vladimir Oltean
2022-07-24 11:10                                 ` Ido Schimmel
2022-07-24 11:10                                   ` [Bridge] " Ido Schimmel
2022-08-01 11:57                                   ` netdev
2022-08-01 11:57                                     ` [Bridge] " netdev
2022-08-01 13:14                                   ` netdev
2022-08-01 13:14                                     ` [Bridge] " netdev
2022-08-02 12:54                             ` netdev
2022-08-02 12:54                               ` [Bridge] " netdev
2022-08-01 15:33                     ` netdev
2022-08-01 15:33                       ` [Bridge] " netdev
2022-08-09  9:20                       ` Ido Schimmel
2022-08-09  9:20                         ` [Bridge] " Ido Schimmel
2022-08-09 20:00                         ` netdev
2022-08-09 20:00                           ` [Bridge] " netdev
2022-08-10  7:21                           ` Ido Schimmel
2022-08-10  7:21                             ` [Bridge] " Ido Schimmel
2022-08-10  8:40                             ` netdev
2022-08-10  8:40                               ` [Bridge] " netdev
2022-08-11 11:28                               ` Ido Schimmel
2022-08-11 11:28                                 ` [Bridge] " Ido Schimmel
2022-08-12 15:33                                 ` netdev
2022-08-12 15:33                                   ` [Bridge] " netdev
2022-08-16  7:51                             ` netdev
2022-08-16  7:51                               ` [Bridge] " netdev
2022-08-17  6:21                               ` Ido Schimmel
2022-08-17  6:21                                 ` [Bridge] " Ido Schimmel
2022-07-21 11:51           ` Vladimir Oltean
2022-07-21 11:51             ` [Bridge] " Vladimir Oltean
2022-07-08 20:39   ` kernel test robot
2022-07-07 15:29 ` [PATCH v4 net-next 4/6] net: dsa: mv88e6xxx: allow reading FID when handling ATU violations Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-07 15:29 ` [PATCH v4 net-next 5/6] net: dsa: mv88e6xxx: mac-auth/MAB implementation Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-08  9:46   ` kernel test robot [this message]
2022-07-17  0:47   ` Vladimir Oltean
2022-07-17  0:47     ` [Bridge] " Vladimir Oltean
2022-07-17 12:34     ` netdev
2022-07-17 12:34       ` [Bridge] " netdev
2022-07-21 12:04       ` Vladimir Oltean
2022-07-21 12:04         ` [Bridge] " Vladimir Oltean
2022-08-19  8:28     ` netdev
2022-08-19  8:28       ` [Bridge] " netdev
2022-07-07 15:29 ` [PATCH v4 net-next 6/6] selftests: forwarding: add test of MAC-Auth Bypass to locked port tests Hans Schultz
2022-07-07 15:29   ` [Bridge] " Hans Schultz
2022-07-10  7:29   ` Ido Schimmel
2022-07-10  7:29     ` [Bridge] " Ido Schimmel
2022-07-12 12:28     ` netdev
2022-07-12 12:28       ` [Bridge] " netdev
2022-07-08  1:00 ` [PATCH v4 net-next 0/6] Extend locked port feature with FDB locked flag (MAC-Auth/MAB) Jakub Kicinski
2022-07-08  1:00   ` [Bridge] " Jakub Kicinski
2022-08-11  5:09 ` Benjamin Poirier
2022-08-11  5:09   ` [Bridge] " Benjamin Poirier

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