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d="scan'208";a="305410218" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jun 2022 14:10:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,207,1650956400"; d="scan'208";a="833264941" Received: from lkp-server01.sh.intel.com (HELO 60dabacc1df6) ([10.239.97.150]) by fmsmga006.fm.intel.com with ESMTP; 20 Jun 2022 14:10:00 -0700 Received: from kbuild by 60dabacc1df6 with local (Exim 4.95) (envelope-from ) id 1o3Oem-000W8V-4z; Mon, 20 Jun 2022 21:10:00 +0000 Date: Tue, 21 Jun 2022 05:09:08 +0800 From: kernel test robot To: Pranavi Somisetty Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-arm-kernel@lists.infradead.org, Michal Simek , Harini Katakam , Radhey Shyam Pandey Subject: [xilinx-xlnx:xlnx_rebase_v5.15 1090/1181] drivers/staging/xilinx-tsn/xilinx_tsn_ep_ex.c:111:52: warning: variable 'mac_addr' is uninitialized when used here Message-ID: <202206210504.DOkGUgfX-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15 head: 5e0be2b8c0a423b650f4e4d107be37e858d2b9dd commit: 69f4e38f3088d4dc9c007070610b5223c5611d08 [1090/1181] net: xilinx: Move Xilinx TSN to staging config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220621/202206210504.DOkGUgfX-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project af6d2a0b6825e71965f3e2701a63c239fa0ad70f) 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/Xilinx/linux-xlnx/commit/69f4e38f3088d4dc9c007070610b5223c5611d08 git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15 git checkout 69f4e38f3088d4dc9c007070610b5223c5611d08 # 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/staging/xilinx-tsn/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/staging/xilinx-tsn/xilinx_tsn_ep_ex.c:111:52: warning: variable 'mac_addr' is uninitialized when used here [-Wuninitialized] ret = of_get_mac_address(pdev->dev.of_node, (u8 *)mac_addr); ^~~~~~~~ drivers/staging/xilinx-tsn/xilinx_tsn_ep_ex.c:86:22: note: initialize the variable 'mac_addr' to silence this warning const void *mac_addr; ^ = NULL 1 warning generated. vim +/mac_addr +111 drivers/staging/xilinx-tsn/xilinx_tsn_ep_ex.c 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 79 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 80 static int tsn_ex_ep_probe(struct platform_device *pdev) 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 81 { 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 82 struct axienet_local *lp; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 83 struct net_device *ndev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 84 struct device_node *ep_node; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 85 struct axienet_local *ep_lp; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 86 const void *mac_addr; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 87 int ret = 0; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 88 const void *packet_switch; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 89 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 90 ndev = alloc_netdev(sizeof(*lp), "exep", 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 91 NET_NAME_UNKNOWN, ether_setup); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 92 if (!ndev) 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 93 return -ENOMEM; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 94 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 95 platform_set_drvdata(pdev, ndev); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 96 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 97 SET_NETDEV_DEV(ndev, &pdev->dev); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 98 ndev->flags &= ~IFF_MULTICAST; /* clear multicast */ 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 99 ndev->features = NETIF_F_SG; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 100 ndev->netdev_ops = &ex_ep_netdev_ops; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 101 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 102 /* MTU range: 64 - 9000 */ 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 103 ndev->min_mtu = 64; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 104 ndev->max_mtu = XAE_JUMBO_MTU; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 105 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 106 lp = netdev_priv(ndev); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 107 lp->ndev = ndev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 108 lp->dev = &pdev->dev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 109 lp->options = XAE_OPTION_DEFAULTS; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 110 /* Retrieve the MAC address */ 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 @111 ret = of_get_mac_address(pdev->dev.of_node, (u8 *)mac_addr); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 112 if (ret) { 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 113 dev_err(&pdev->dev, "could not find MAC address\n"); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 114 goto free_netdev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 115 } 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 116 tsn_ex_ep_set_mac_address(ndev, mac_addr); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 117 packet_switch = of_get_property(pdev->dev.of_node, "packet-switch", NULL); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 118 ep_node = of_parse_phandle(pdev->dev.of_node, "tsn,endpoint", 0); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 119 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 120 lp->master = of_find_net_device_by_node(ep_node); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 121 ret = register_netdev(lp->ndev); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 122 if (ret) { 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 123 dev_err(lp->dev, "register_netdev() error (%i)\n", ret); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 124 goto free_netdev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 125 } 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 126 ep_lp = netdev_priv(lp->master); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 127 ep_lp->ex_ep = ndev; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 128 if (packet_switch) 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 129 ep_lp->packet_switch = 1; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 130 return ret; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 131 free_netdev: 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 132 free_netdev(ndev); 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 133 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 134 return ret; 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 135 } 50ac45f37fce9e drivers/net/ethernet/xilinx/xilinx_tsn_ep_ex.c Pranavi Somisetty 2022-04-06 136 :::::: The code at line 111 was first introduced by commit :::::: 50ac45f37fce9e1fc3e40b605ac1f18d9c193efd net: xilinx: TSN endpoint extension support :::::: TO: Pranavi Somisetty :::::: CC: Michal Simek -- 0-DAY CI Kernel Test Service https://01.org/lkp