[PATCH] drm/amdgpu/jpeg: Fix format-truncation warning in jpeg_v2_5_sw_init()

[Dongyang Jin]

A false-positive compile warnings:

drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c: In function 'jpeg_v2_5_sw_init':
drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c:152:68: warning: '%d' directive output 
may be truncated writing between 1 and 11 bytes into a region of size 7 
[-Wformat-truncation=]
  152 |                 snprintf(ring->name, sizeof(ring->name), "jpeg_dec_%d", 
i);
      |                                                                    ^~
drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c:152:58: note: directive argument in the 
range [-2147483643, 255]
  152 |                 snprintf(ring->name, sizeof(ring->name), "jpeg_dec_%d", 
i);
      |                                                          ^~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c:152:17: note: 'snprintf' output between 
11 and 21 bytes into a destination of size 16
  152 |                 snprintf(ring->name, sizeof(ring->name), "jpeg_dec_%d", 
i);
      |                 
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Suppress it by replacing the type of variable i with uint8_t.

Reported-by: kernel test robot <l...@intel.com>
Closes: 
https://lore.kernel.org/oe-kbuild-all/202605212104.saimqegx-...@intel.com/
Signed-off-by: Dongyang Jin <jindongy...@kylinos.cn>
---
 drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c 
b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
index 5208312e7017..a88a1e1d6423 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
@@ -104,7 +104,8 @@ static int jpeg_v2_5_early_init(struct amdgpu_ip_block 
*ip_block)
 static int jpeg_v2_5_sw_init(struct amdgpu_ip_block *ip_block)
 {
        struct amdgpu_ring *ring;
-       int i, r;
+       uint8_t i;
+       int r;
        struct amdgpu_device *adev = ip_block->adev;
 
        for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) {
@@ -149,7 +150,7 @@ static int jpeg_v2_5_sw_init(struct amdgpu_ip_block 
*ip_block)
                else
                        ring->vm_hub = AMDGPU_MMHUB0(0);
                ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 
1) + 1 + 8 * i;
-               snprintf(ring->name, sizeof(ring->name), "jpeg_dec_%d", i);
+               snprintf(ring->name, sizeof(ring->name), "jpeg_dec_%u", i);
                r = amdgpu_ring_init(adev, ring, 512, &adev->jpeg.inst[i].irq,
                                     0, AMDGPU_RING_PRIO_DEFAULT, NULL);
                if (r)
-- 
2.25.1