From: kernel test robot <lkp@intel.com>
To: Lijo Lazar <lijo.lazar@amd.com>
Cc: oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>,
Alex Deucher <alexander.deucher@amd.com>,
Asad Kamal <asad.kamal@amd.com>
Subject: [linux-next:master 10507/10967] drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c:59:58: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 9
Date: Fri, 3 May 2024 21:28:51 +0800 [thread overview]
Message-ID: <202405032143.9iYuUxkm-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 9221b2819b8a4196eecf5476d66201be60fbcf29
commit: 97d814fe4f697791abfbe27e035f0b943c483243 [10507/10967] drm/amd/amdxcp: Use unique name for partition dev
config: csky-randconfig-r031-20220611 (https://download.01.org/0day-ci/archive/20240503/202405032143.9iYuUxkm-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240503/202405032143.9iYuUxkm-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/202405032143.9iYuUxkm-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c: In function 'amdgpu_xcp_drm_dev_alloc':
>> drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c:59:58: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 9 [-Wformat-truncation=]
59 | snprintf(dev_name, sizeof(dev_name), "amdgpu_xcp_%d", pdev_num);
| ^~
drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c:59:46: note: directive argument in the range [-2147483648, 63]
59 | snprintf(dev_name, sizeof(dev_name), "amdgpu_xcp_%d", pdev_num);
| ^~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c:59:9: note: 'snprintf' output between 13 and 23 bytes into a destination of size 20
59 | snprintf(dev_name, sizeof(dev_name), "amdgpu_xcp_%d", pdev_num);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +59 drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c
48
49 int amdgpu_xcp_drm_dev_alloc(struct drm_device **ddev)
50 {
51 struct platform_device *pdev;
52 struct xcp_device *pxcp_dev;
53 char dev_name[20];
54 int ret;
55
56 if (pdev_num >= MAX_XCP_PLATFORM_DEVICE)
57 return -ENODEV;
58
> 59 snprintf(dev_name, sizeof(dev_name), "amdgpu_xcp_%d", pdev_num);
60 pdev = platform_device_register_simple(dev_name, -1, NULL, 0);
61 if (IS_ERR(pdev))
62 return PTR_ERR(pdev);
63
64 if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
65 ret = -ENOMEM;
66 goto out_unregister;
67 }
68
69 pxcp_dev = devm_drm_dev_alloc(&pdev->dev, &amdgpu_xcp_driver, struct xcp_device, drm);
70 if (IS_ERR(pxcp_dev)) {
71 ret = PTR_ERR(pxcp_dev);
72 goto out_devres;
73 }
74
75 xcp_dev[pdev_num] = pxcp_dev;
76 xcp_dev[pdev_num]->pdev = pdev;
77 *ddev = &pxcp_dev->drm;
78 pdev_num++;
79
80 return 0;
81
82 out_devres:
83 devres_release_group(&pdev->dev, NULL);
84 out_unregister:
85 platform_device_unregister(pdev);
86
87 return ret;
88 }
89 EXPORT_SYMBOL(amdgpu_xcp_drm_dev_alloc);
90
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2024-05-03 13:29 UTC|newest]
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