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X-CSE-ConnectionGUID: Lt94Dt95SQOWqIlZ1/5H6g== X-CSE-MsgGUID: JR4YF9QbSBCCLdcRt+IADw== X-IronPort-AV: E=McAfee;i="6800,10657,11784"; a="79705849" X-IronPort-AV: E=Sophos;i="6.23,232,1770624000"; d="scan'208";a="79705849" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2026 03:45:20 -0700 X-CSE-ConnectionGUID: DyL2LxycT+6dnDQCVEb3rQ== X-CSE-MsgGUID: /tJLvQ2sRBeFJ1J9qaLAiw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,232,1770624000"; d="scan'208";a="243039823" Received: from lkp-server01.sh.intel.com (HELO dca79079c3eb) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 13 May 2026 03:45:18 -0700 Received: from kbuild by dca79079c3eb with local (Exim 4.98.2) (envelope-from ) id 1wN75X-000000003wr-11cN; Wed, 13 May 2026 10:45:15 +0000 Date: Wed, 13 May 2026 18:45:02 +0800 From: kernel test robot To: Justin Lai Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Jakub Kicinski , Joe Damato Subject: drivers/net/ethernet/realtek/rtase/rtase_main.c:1117:52: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 7 and 22 Message-ID: <202605131825.WUeRwNdl-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi Justin, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1d5dcaa3bd65f2e8c9baa14a393d3a2dc5db7524 commit: ef7d33e174564d6294edd00ca797e2b0aac76259 rtase: Modify the format specifier in snprintf to %u date: 1 year ago config: microblaze-randconfig-r123-20260513 (https://download.01.org/0day-ci/archive/20260513/202605131825.WUeRwNdl-lkp@intel.com/config) compiler: microblaze-linux-gcc (GCC) 8.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260513/202605131825.WUeRwNdl-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 | Fixes: ef7d33e17456 ("rtase: Modify the format specifier in snprintf to %u") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202605131825.WUeRwNdl-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/net/ethernet/realtek/rtase/rtase_main.c: In function 'rtase_open': >> drivers/net/ethernet/realtek/rtase/rtase_main.c:1117:52: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 7 and 22 [-Wformat-truncation=] snprintf(ivec->name, sizeof(ivec->name), "%s_int%u", ^~ drivers/net/ethernet/realtek/rtase/rtase_main.c:1117:45: note: directive argument in the range [0, 2147483647] snprintf(ivec->name, sizeof(ivec->name), "%s_int%u", ^~~~~~~~~~ drivers/net/ethernet/realtek/rtase/rtase_main.c:1117:4: note: 'snprintf' output between 6 and 30 bytes into a destination of size 26 snprintf(ivec->name, sizeof(ivec->name), "%s_int%u", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tp->dev->name, i); ~~~~~~~~~~~~~~~~~ vim +1117 drivers/net/ethernet/realtek/rtase/rtase_main.c 1086 1087 static int rtase_open(struct net_device *dev) 1088 { 1089 struct rtase_private *tp = netdev_priv(dev); 1090 const struct pci_dev *pdev = tp->pdev; 1091 struct rtase_int_vector *ivec; 1092 u16 i = 0, j; 1093 int ret; 1094 1095 ivec = &tp->int_vector[0]; 1096 tp->rx_buf_sz = RTASE_RX_BUF_SIZE; 1097 1098 ret = rtase_alloc_desc(tp); 1099 if (ret) 1100 return ret; 1101 1102 ret = rtase_init_ring(dev); 1103 if (ret) 1104 goto err_free_all_allocated_mem; 1105 1106 rtase_hw_config(dev); 1107 1108 if (tp->sw_flag & RTASE_SWF_MSIX_ENABLED) { 1109 ret = request_irq(ivec->irq, rtase_interrupt, 0, 1110 dev->name, ivec); 1111 if (ret) 1112 goto err_free_all_allocated_irq; 1113 1114 /* request other interrupts to handle multiqueue */ 1115 for (i = 1; i < tp->int_nums; i++) { 1116 ivec = &tp->int_vector[i]; > 1117 snprintf(ivec->name, sizeof(ivec->name), "%s_int%u", 1118 tp->dev->name, i); 1119 ret = request_irq(ivec->irq, rtase_q_interrupt, 0, 1120 ivec->name, ivec); 1121 if (ret) 1122 goto err_free_all_allocated_irq; 1123 } 1124 } else { 1125 ret = request_irq(pdev->irq, rtase_interrupt, 0, dev->name, 1126 ivec); 1127 if (ret) 1128 goto err_free_all_allocated_mem; 1129 } 1130 1131 rtase_hw_start(dev); 1132 1133 for (i = 0; i < tp->int_nums; i++) { 1134 ivec = &tp->int_vector[i]; 1135 napi_enable(&ivec->napi); 1136 } 1137 1138 netif_carrier_on(dev); 1139 netif_wake_queue(dev); 1140 1141 return 0; 1142 1143 err_free_all_allocated_irq: 1144 for (j = 0; j < i; j++) 1145 free_irq(tp->int_vector[j].irq, &tp->int_vector[j]); 1146 1147 err_free_all_allocated_mem: 1148 rtase_free_desc(tp); 1149 1150 return ret; 1151 } 1152 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki