[saeed:mlx5-queue 40/68] drivers/net/ethernet/mellanox/mlx5/core/en_main.c:5015:57: warning: variable 'err' is uninitialized when used here

[kernel test robot]

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@xxxxxxxxx/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@xxxxxxxxx>

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@xxxxxxxxxx>
:::::: CC: Saeed Mahameed <saeedm@xxxxxxxxxx>

-- 
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