5.15-stable review patch. If anyone has any objections, please let me know.
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From: Ma Jun Jun.Ma2@amd.com
[ Upstream commit 2e55bcf3d742a4946d862b86e39e75a95cc6f1c0 ]
Initialize the interrupt timestamp for some legacy SOCs to fix the coverity issue "Uninitialized scalar variable"
Signed-off-by: Ma Jun Jun.Ma2@amd.com Suggested-by: Christian König christian.koenig@amd.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c index cc2e0c9cfe0a1..c04f458db937f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -494,6 +494,14 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
entry.ih = ih; entry.iv_entry = (const uint32_t *)&ih->ring[ring_index]; + + /* + * timestamp is not supported on some legacy SOCs (cik, cz, iceland, + * si and tonga), so initialize timestamp and timestamp_src to 0 + */ + entry.timestamp = 0; + entry.timestamp_src = 0; + amdgpu_ih_decode_iv(adev, &entry);
trace_amdgpu_iv(ih - &adev->irq.ih, &entry);