From: kernel test robot <lkp@intel.com>
To: Lama Kayal <lkayal@nvidia.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>,
Tariq Toukan <tariqt@nvidia.com>
Subject: [saeed:mlx5-queue 40/68] drivers/net/ethernet/mellanox/mlx5/core/en_main.c:5015:57: warning: variable 'err' is uninitialized when used here
Date: Wed, 13 Jul 2022 00:10:53 +0800 [thread overview]
Message-ID: <202207130003.SL9fRJbu-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git mlx5-queue
head: a78a596e3e1e4b584883b0a6f58d8f9c61943fb1
commit: 4d121fe4ec12681d4948420ee172eb9d325df533 [40/68] net/mlx5e: Convert mlx5e_flow_steering member of mlx5e_priv to pointer
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220713/202207130003.SL9fRJbu-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project badda4ac3c489a8c8cccdad1f74b9308c350a9e0)
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://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git/commit/?id=4d121fe4ec12681d4948420ee172eb9d325df533
git remote add saeed https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git
git fetch --no-tags saeed mlx5-queue
git checkout 4d121fe4ec12681d4948420ee172eb9d325df533
# 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=i386 SHELL=/bin/bash drivers/net/ethernet/mellanox/mlx5/core/
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/ethernet/mellanox/mlx5/core/en_main.c:5015:57: warning: variable 'err' is uninitialized when used here [-Wuninitialized]
mlx5_core_err(mdev, "FS initialization failed, %d\n", err);
^~~
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h:67:11: note: expanded from macro 'mlx5_core_err'
##__VA_ARGS__)
^~~~~~~~~~~
include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err'
dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~
include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
_p_func(dev, fmt, ##__VA_ARGS__); \
^~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:5006:9: note: initialize the variable 'err' to silence this warning
int err;
^
= 0
1 warning generated.
vim +/err +5015 drivers/net/ethernet/mellanox/mlx5/core/en_main.c
593cf33829adfd Rana Shahout 2016-04-20 5000
182570b26223de Feras Daoud 2018-10-02 5001 static int mlx5e_nic_init(struct mlx5_core_dev *mdev,
3ef14e463f6ed0 Saeed Mahameed 2020-02-25 5002 struct net_device *netdev)
6bfd390ba54666 Hadar Hen Zion 2016-07-01 5003 {
6bfd390ba54666 Hadar Hen Zion 2016-07-01 5004 struct mlx5e_priv *priv = netdev_priv(netdev);
4d121fe4ec1268 Lama Kayal 2022-01-09 5005 struct mlx5e_flow_steering *fs;
547eede070eb98 Ilan Tayari 2017-04-18 5006 int err;
6bfd390ba54666 Hadar Hen Zion 2016-07-01 5007
3ef14e463f6ed0 Saeed Mahameed 2020-02-25 5008 mlx5e_build_nic_params(priv, &priv->xsk, netdev->mtu);
84db6612471416 Roi Dayan 2020-09-16 5009 mlx5e_vxlan_set_netdev_info(priv);
519a0bf5b20c37 Saeed Mahameed 2018-09-12 5010
519a0bf5b20c37 Saeed Mahameed 2018-09-12 5011 mlx5e_timestamp_init(priv);
519a0bf5b20c37 Saeed Mahameed 2018-09-12 5012
4d121fe4ec1268 Lama Kayal 2022-01-09 5013 fs = mlx5e_fs_init(priv->profile);
4d121fe4ec1268 Lama Kayal 2022-01-09 5014 if (!fs) {
68e66e1a69cd94 Moshe Shemesh 2021-10-02 @5015 mlx5_core_err(mdev, "FS initialization failed, %d\n", err);
4d121fe4ec1268 Lama Kayal 2022-01-09 5016 return -ENOMEM;
68e66e1a69cd94 Moshe Shemesh 2021-10-02 5017 }
4d121fe4ec1268 Lama Kayal 2022-01-09 5018 priv->fs = fs;
68e66e1a69cd94 Moshe Shemesh 2021-10-02 5019
547eede070eb98 Ilan Tayari 2017-04-18 5020 err = mlx5e_ipsec_init(priv);
547eede070eb98 Ilan Tayari 2017-04-18 5021 if (err)
547eede070eb98 Ilan Tayari 2017-04-18 5022 mlx5_core_err(mdev, "IPSec initialization failed, %d\n", err);
3ef14e463f6ed0 Saeed Mahameed 2020-02-25 5023
943aa7bda37301 Leon Romanovsky 2022-04-04 5024 err = mlx5e_ktls_init(priv);
43585a41bd8949 Ilya Lesokhin 2018-04-30 5025 if (err)
43585a41bd8949 Ilya Lesokhin 2018-04-30 5026 mlx5_core_err(mdev, "TLS initialization failed, %d\n", err);
3ef14e463f6ed0 Saeed Mahameed 2020-02-25 5027
11af6a6d09e9a9 Aya Levin 2019-07-11 5028 mlx5e_health_create_reporters(priv);
182570b26223de Feras Daoud 2018-10-02 5029 return 0;
6bfd390ba54666 Hadar Hen Zion 2016-07-01 5030 }
6bfd390ba54666 Hadar Hen Zion 2016-07-01 5031
:::::: The code at line 5015 was first introduced by commit
:::::: 68e66e1a69cd94f934522348ab232af49863452a net/mlx5e: Fix vlan data lost during suspend flow
:::::: TO: Moshe Shemesh <moshe@nvidia.com>
:::::: CC: Saeed Mahameed <saeedm@nvidia.com>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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