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[v2,05/23] media: iris: Send V4L2_BUF_FLAG_ERROR for buffers with 0 filled length

Message ID 20250428-qcom-iris-hevc-vp9-v2-5-3a6013ecb8a5@quicinc.com
State New
Headers show
Series [v2,01/23] media: iris: Skip destroying internal buffer if not dequeued | expand

Commit Message

Dikshita Agarwal April 28, 2025, 9:28 a.m. UTC 
Firmware sends buffers with 0 filled length which needs to be dropped,
to achieve the same, add V4L2_BUF_FLAG_ERROR to such buffers.
Also make sure:
- These 0 length buffers are not returned as result of flush.
- Its not a buffer with LAST flag enabled which will also have 0 filled
  length.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
index 0e889d07e997..0eb7549da606 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
@@ -377,6 +377,12 @@  static int iris_hfi_gen2_handle_output_buffer(struct iris_inst *inst,
 
 	buf->flags = iris_hfi_gen2_get_driver_buffer_flags(inst, hfi_buffer->flags);
 
+	if (!buf->data_size && inst->state == IRIS_INST_STREAMING &&
+	    !(hfi_buffer->flags & HFI_BUF_FW_FLAG_LAST) &&
+	    !(inst->sub_state & IRIS_INST_SUB_DRC)) {
+		buf->flags |= V4L2_BUF_FLAG_ERROR;
+	}
+
 	return 0;
 }