* 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
@ 2025-06-27 11:05 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-06-27 11:05 UTC (permalink / raw)
To: Justin Lai; +Cc: oe-kbuild-all, linux-kernel, Jakub Kicinski, Joe Damato
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 67a993863163cb88b1b68974c31b0d84ece4293e
commit: ef7d33e174564d6294edd00ca797e2b0aac76259 rtase: Modify the format specifier in snprintf to %u
date: 8 weeks ago
config: sparc-randconfig-2003-20250626 (https://download.01.org/0day-ci/archive/20250627/202506271902.vYqvPORm-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250627/202506271902.vYqvPORm-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/202506271902.vYqvPORm-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
^ permalink raw reply [flat|nested] 2+ messages in thread
* 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
@ 2025-08-14 1:11 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-08-14 1:11 UTC (permalink / raw)
To: Justin Lai; +Cc: oe-kbuild-all, linux-kernel, Jakub Kicinski, Joe Damato
Hi Justin,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: dfc0f6373094dd88e1eaf76c44f2ff01b65db851
commit: ef7d33e174564d6294edd00ca797e2b0aac76259 rtase: Modify the format specifier in snprintf to %u
date: 4 months ago
config: sparc-randconfig-2006-20250814 (https://download.01.org/0day-ci/archive/20250814/202508140329.jDo2ASlz-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250814/202508140329.jDo2ASlz-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/202508140329.jDo2ASlz-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
^ permalink raw reply [flat|nested] 2+ messages in thread
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