linux-kernel - drivers/net/ethernet/ti/am65-cpsw-nuss.c:1640:55: sparse: sparse: incorrect type in initializer (different address spaces)

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Message-ID: <202312311235.NwNBzCd7-lkp@intel.com>
Date: Sun, 31 Dec 2023 12:18:48 +0800
From: kernel test robot <lkp@...el.com>
To: Grygorii Strashko <grygorii.strashko@...com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/net/ethernet/ti/am65-cpsw-nuss.c:1640:55: sparse: sparse:
 incorrect type in initializer (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   453f5db0619e2ad64076aab16ff5a00e0f7c53a2
commit: 93a76530316a3d8cc2d82c3deca48424fee92100 net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver
date:   3 years, 9 months ago
config: arm64-randconfig-r123-20231231 (https://download.01.org/0day-ci/archive/20231231/202312311235.NwNBzCd7-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231231/202312311235.NwNBzCd7-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312311235.NwNBzCd7-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/net/ethernet/ti/am65-cpsw-nuss.c:1640:55: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct am65_cpsw_ndev_stats [noderef] __percpu *stats @@     got void *data @@
   drivers/net/ethernet/ti/am65-cpsw-nuss.c:1640:55: sparse:     expected struct am65_cpsw_ndev_stats [noderef] __percpu *stats
   drivers/net/ethernet/ti/am65-cpsw-nuss.c:1640:55: sparse:     got void *data
>> drivers/net/ethernet/ti/am65-cpsw-nuss.c:1692:49: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void *data @@     got struct am65_cpsw_ndev_stats [noderef] __percpu *stats @@
   drivers/net/ethernet/ti/am65-cpsw-nuss.c:1692:49: sparse:     expected void *data
   drivers/net/ethernet/ti/am65-cpsw-nuss.c:1692:49: sparse:     got struct am65_cpsw_ndev_stats [noderef] __percpu *stats

vim +1640 drivers/net/ethernet/ti/am65-cpsw-nuss.c

  1637	
  1638	static void am65_cpsw_pcpu_stats_free(void *data)
  1639	{
> 1640		struct am65_cpsw_ndev_stats __percpu *stats = data;
  1641	
  1642		free_percpu(stats);
  1643	}
  1644	
  1645	static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
  1646	{
  1647		struct am65_cpsw_ndev_priv *ndev_priv;
  1648		struct device *dev = common->dev;
  1649		struct am65_cpsw_port *port;
  1650		int ret;
  1651	
  1652		port = am65_common_get_port(common, 1);
  1653	
  1654		/* alloc netdev */
  1655		port->ndev = devm_alloc_etherdev_mqs(common->dev,
  1656						     sizeof(struct am65_cpsw_ndev_priv),
  1657						     AM65_CPSW_MAX_TX_QUEUES,
  1658						     AM65_CPSW_MAX_RX_QUEUES);
  1659		if (!port->ndev) {
  1660			dev_err(dev, "error allocating slave net_device %u\n",
  1661				port->port_id);
  1662			return -ENOMEM;
  1663		}
  1664	
  1665		ndev_priv = netdev_priv(port->ndev);
  1666		ndev_priv->port = port;
  1667		ndev_priv->msg_enable = AM65_CPSW_DEBUG;
  1668		SET_NETDEV_DEV(port->ndev, dev);
  1669	
  1670		ether_addr_copy(port->ndev->dev_addr, port->slave.mac_addr);
  1671	
  1672		port->ndev->min_mtu = AM65_CPSW_MIN_PACKET_SIZE;
  1673		port->ndev->max_mtu = AM65_CPSW_MAX_PACKET_SIZE;
  1674		port->ndev->hw_features = NETIF_F_SG |
  1675					  NETIF_F_RXCSUM |
  1676					  NETIF_F_HW_CSUM;
  1677		port->ndev->features = port->ndev->hw_features |
  1678				       NETIF_F_HW_VLAN_CTAG_FILTER;
  1679		port->ndev->vlan_features |=  NETIF_F_SG;
  1680		port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops_2g;
  1681		port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave;
  1682	
  1683		/* Disable TX checksum offload by default due to HW bug */
  1684		if (common->pdata->quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM)
  1685			port->ndev->features &= ~NETIF_F_HW_CSUM;
  1686	
  1687		ndev_priv->stats = netdev_alloc_pcpu_stats(struct am65_cpsw_ndev_stats);
  1688		if (!ndev_priv->stats)
  1689			return -ENOMEM;
  1690	
  1691		ret = devm_add_action_or_reset(dev, am65_cpsw_pcpu_stats_free,
> 1692					       ndev_priv->stats);
  1693		if (ret) {
  1694			dev_err(dev, "failed to add percpu stat free action %d", ret);
  1695			return ret;
  1696		}
  1697	
  1698		netif_napi_add(port->ndev, &common->napi_rx,
  1699			       am65_cpsw_nuss_rx_poll, NAPI_POLL_WEIGHT);
  1700	
  1701		common->pf_p0_rx_ptype_rrobin = false;
  1702	
  1703		return ret;
  1704	}
  1705	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki