Re: [PATCH net-next] net: stmmac: qcom-ethqos: Add sysfs nodes for qcom ethqos

[kernel test robot <lkp@intel.com>]

Hi Sneh,

kernel test robot noticed the following build warnings:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Sneh-Shah/net-stmmac-qcom-ethqos-Add-sysfs-nodes-for-qcom-ethqos/20231204-165232
base:   net-next/main
patch link:    https://lore.kernel.org/r/20231204084854.31543-1-quic_snehshah%40quicinc.com
patch subject: [PATCH net-next] net: stmmac: qcom-ethqos: Add sysfs nodes for qcom ethqos
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20231205/202312051347.L3L2pNLv-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231205/202312051347.L3L2pNLv-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312051347.L3L2pNLv-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c: In function 'gvm_queue_mapping_store':
>> drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c:770:13: warning: variable 'prio' set but not used [-Wunused-but-set-variable]
     770 |         u32 prio;
         |             ^~~~


vim +/prio +770 drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c

   762	
   763	static ssize_t gvm_queue_mapping_store(struct device *dev,
   764					       struct device_attribute *attr,
   765					       const char *user_buf, size_t size)
   766	{
   767		struct net_device *netdev = to_net_dev(dev);
   768		struct stmmac_priv *priv;
   769		struct qcom_ethqos *ethqos;
 > 770		u32 prio;
   771		s8 input = 0;
   772	
   773		if (!netdev) {
   774			pr_err("netdev is NULL\n");
   775			return -EINVAL;
   776		}
   777	
   778		priv = netdev_priv(netdev);
   779		if (!priv) {
   780			pr_err("priv is NULL\n");
   781			return -EINVAL;
   782		}
   783	
   784		ethqos = priv->plat->bsp_priv;
   785		if (!ethqos) {
   786			pr_err("ethqos is NULL\n");
   787			return -EINVAL;
   788		}
   789	
   790		if (kstrtos8(user_buf, 0, &input)) {
   791			pr_err("Error in reading option from user\n");
   792			return -EINVAL;
   793		}
   794	
   795		if (input == ethqos->gvm_queue)
   796			pr_err("No effect as duplicate input\n");
   797	
   798		ethqos->gvm_queue = input;
   799		prio  = 1 << input;
   800	
   801		return size;
   802	}
   803	

-- 
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https://github.com/intel/lkp-tests/wiki