[drm-misc:drm-misc-next 2/2] drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:61: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 8

[kernel test robot <lkp@intel.com>]

tree:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
head:   f89632a9e5fa6c4787c14458cd42a9ef42025434
commit: f89632a9e5fa6c4787c14458cd42a9ef42025434 [2/2] drm: Add CONFIG_DRM_WERROR
config: sparc-allmodconfig (https://download.01.org/0day-ci/archive/20240307/202403070922.OGdsI4vn-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240307/202403070922.OGdsI4vn-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/202403070922.OGdsI4vn-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c: In function 'amdgpu_gfx_kiq_init_ring':
>> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:61: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 8 [-Werror=format-truncation=]
     332 |         snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d",
         |                                                             ^~
   drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:50: note: directive argument in the range [0, 2147483647]
     332 |         snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d",
         |                                                  ^~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:9: note: 'snprintf' output between 12 and 41 bytes into a destination of size 16
     332 |         snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d",
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     333 |                  xcc_id, ring->me, ring->pipe, ring->queue);
         |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +332 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c

71c37505e7eaa0 Alex Deucher    2017-06-07  306  
71c37505e7eaa0 Alex Deucher    2017-06-07  307  int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev,
71c37505e7eaa0 Alex Deucher    2017-06-07  308  			     struct amdgpu_ring *ring,
def799c6596d07 Le Ma           2022-05-24  309  			     struct amdgpu_irq_src *irq, int xcc_id)
71c37505e7eaa0 Alex Deucher    2017-06-07  310  {
def799c6596d07 Le Ma           2022-05-24  311  	struct amdgpu_kiq *kiq = &adev->gfx.kiq[xcc_id];
71c37505e7eaa0 Alex Deucher    2017-06-07  312  	int r = 0;
71c37505e7eaa0 Alex Deucher    2017-06-07  313  
43ca8efa46d9b1 pding           2017-10-13  314  	spin_lock_init(&kiq->ring_lock);
71c37505e7eaa0 Alex Deucher    2017-06-07  315  
71c37505e7eaa0 Alex Deucher    2017-06-07  316  	ring->adev = NULL;
71c37505e7eaa0 Alex Deucher    2017-06-07  317  	ring->ring_obj = NULL;
71c37505e7eaa0 Alex Deucher    2017-06-07  318  	ring->use_doorbell = true;
def799c6596d07 Le Ma           2022-05-24  319  	ring->xcc_id = xcc_id;
3566938b3491bb Le Ma           2021-12-20  320  	ring->vm_hub = AMDGPU_GFXHUB(xcc_id);
233bb3733bd439 Lijo Lazar      2023-01-19  321  	ring->doorbell_index =
233bb3733bd439 Lijo Lazar      2023-01-19  322  		(adev->doorbell_index.kiq +
233bb3733bd439 Lijo Lazar      2023-01-19  323  		 xcc_id * adev->doorbell_index.xcc_doorbell_range)
233bb3733bd439 Lijo Lazar      2023-01-19  324  		<< 1;
71c37505e7eaa0 Alex Deucher    2017-06-07  325  
def799c6596d07 Le Ma           2022-05-24  326  	r = amdgpu_gfx_kiq_acquire(adev, ring, xcc_id);
71c37505e7eaa0 Alex Deucher    2017-06-07  327  	if (r)
71c37505e7eaa0 Alex Deucher    2017-06-07  328  		return r;
71c37505e7eaa0 Alex Deucher    2017-06-07  329  
71c37505e7eaa0 Alex Deucher    2017-06-07  330  	ring->eop_gpu_addr = kiq->eop_gpu_addr;
a783910d5c8b45 Alex Deucher    2020-04-09  331  	ring->no_scheduler = true;
345a36c4f1baa0 Jani Nikula     2024-01-10 @332  	snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d",
345a36c4f1baa0 Jani Nikula     2024-01-10  333  		 xcc_id, ring->me, ring->pipe, ring->queue);
c107171b8d3241 Christian König 2021-02-02  334  	r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0,
c107171b8d3241 Christian König 2021-02-02  335  			     AMDGPU_RING_PRIO_DEFAULT, NULL);
71c37505e7eaa0 Alex Deucher    2017-06-07  336  	if (r)
71c37505e7eaa0 Alex Deucher    2017-06-07  337  		dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r);
71c37505e7eaa0 Alex Deucher    2017-06-07  338  
71c37505e7eaa0 Alex Deucher    2017-06-07  339  	return r;
71c37505e7eaa0 Alex Deucher    2017-06-07  340  }
71c37505e7eaa0 Alex Deucher    2017-06-07  341  

:::::: The code at line 332 was first introduced by commit
:::::: 345a36c4f1baa03275d88cd13747c6c1748b1fc0 drm/amdgpu: prefer snprintf over sprintf

:::::: TO: Jani Nikula <jani.nikula@intel.com>
:::::: CC: Jani Nikula <jani.nikula@intel.com>

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