Messages in this thread | | | Date | Sat, 18 Nov 2023 21:42:36 +0800 | From | kernel test robot <> | Subject | drivers/misc/pci_endpoint_test.c:38:41: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 2 |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 791c8ab095f71327899023223940dd52257a4173 commit: 2c156ac71c6b2518f3d589190f2a8872a8764faf misc: Add host side PCI driver for PCI test function device date: 7 years ago config: x86_64-buildonly-randconfig-001-20231012 (https://download.01.org/0day-ci/archive/20231118/202311182130.6duKTiLv-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231118/202311182130.6duKTiLv-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/202311182130.6duKTiLv-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/misc/pci_endpoint_test.c: In function 'pci_endpoint_test_probe': >> drivers/misc/pci_endpoint_test.c:38:41: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 2 [-Wformat-truncation=] 38 | #define DRV_MODULE_NAME "pci-endpoint-test" | ^~~~~~~~~~~~~~~~~~~ drivers/misc/pci_endpoint_test.c:463:38: note: in expansion of macro 'DRV_MODULE_NAME' 463 | snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id); | ^~~~~~~~~~~~~~~ drivers/misc/pci_endpoint_test.c:503:57: note: format string is defined here 503 | if (sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) != 1) | ^~ drivers/misc/pci_endpoint_test.c:38:41: note: directive argument in the range [0, 2147483647] 38 | #define DRV_MODULE_NAME "pci-endpoint-test" | ^~~~~~~~~~~~~~~~~~~ drivers/misc/pci_endpoint_test.c:463:38: note: in expansion of macro 'DRV_MODULE_NAME' 463 | snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id); | ^~~~~~~~~~~~~~~ drivers/misc/pci_endpoint_test.c:463:9: note: 'snprintf' output between 20 and 29 bytes into a destination of size 20 463 | snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +38 drivers/misc/pci_endpoint_test.c
37 > 38 #define DRV_MODULE_NAME "pci-endpoint-test" 39
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