5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ma Jun <Jun.Ma2@xxxxxxx> [ 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@xxxxxxx> Suggested-by: Christian König <christian.koenig@xxxxxxx> Reviewed-by: Christian König <christian.koenig@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 76429932035e1..a803e6a4e3473 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -384,6 +384,14 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev, int r; 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); -- 2.43.0
