diff --git a/src/libcamera/pipeline/ipu3/cio2.cpp b/src/libcamera/pipeline/ipu3/cio2.cpp
index b6fe84fe70..7481b2686d 100644
--- a/src/libcamera/pipeline/ipu3/cio2.cpp
+++ b/src/libcamera/pipeline/ipu3/cio2.cpp
@@ -378,7 +378,7 @@ int CIO2Device::stop()
 	return ret;
 }
 
-FrameBuffer *CIO2Device::queueBuffer(Request *request, FrameBuffer *rawBuffer)
+FrameBuffer *CIO2Device::queueBuffer(FrameBuffer *rawBuffer)
 {
 	FrameBuffer *buffer = rawBuffer;
 
@@ -391,7 +391,6 @@ FrameBuffer *CIO2Device::queueBuffer(Request *request, FrameBuffer *rawBuffer)
 
 		buffer = availableBuffers_.front();
 		availableBuffers_.pop();
-		buffer->_d()->setRequest(request);
 	}
 
 	int ret = output_->queueBuffer(buffer);
diff --git a/src/libcamera/pipeline/ipu3/cio2.h b/src/libcamera/pipeline/ipu3/cio2.h
index d844cb7ae8..91651a1640 100644
--- a/src/libcamera/pipeline/ipu3/cio2.h
+++ b/src/libcamera/pipeline/ipu3/cio2.h
@@ -22,7 +22,6 @@ class CameraSensor;
 class FrameBuffer;
 class MediaDevice;
 class PixelFormat;
-class Request;
 class Size;
 class SizeRange;
 struct StreamConfiguration;
@@ -56,7 +55,7 @@ public:
 	CameraSensor *sensor() { return sensor_.get(); }
 	const CameraSensor *sensor() const { return sensor_.get(); }
 
-	FrameBuffer *queueBuffer(Request *request, FrameBuffer *rawBuffer);
+	FrameBuffer *queueBuffer(FrameBuffer *rawBuffer);
 	void tryReturnBuffer(FrameBuffer *buffer);
 	Signal<FrameBuffer *> &bufferReady() { return output_->bufferReady; }
 	Signal<uint32_t> &frameStart() { return csi2_->frameStart; }
diff --git a/src/libcamera/pipeline/ipu3/frames.cpp b/src/libcamera/pipeline/ipu3/frames.cpp
index 4232e976a9..67ec922e49 100644
--- a/src/libcamera/pipeline/ipu3/frames.cpp
+++ b/src/libcamera/pipeline/ipu3/frames.cpp
@@ -58,9 +58,6 @@ IPU3Frames::Info *IPU3Frames::create(Request *request)
 	FrameBuffer *paramBuffer = availableParamBuffers_.front();
 	FrameBuffer *statBuffer = availableStatBuffers_.front();
 
-	paramBuffer->_d()->setRequest(request);
-	statBuffer->_d()->setRequest(request);
-
 	availableParamBuffers_.pop();
 	availableStatBuffers_.pop();
 
diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index 560fccd8c0..af1b79d708 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -810,7 +810,7 @@ void IPU3CameraData::queuePendingRequests()
 		 * otherwise.
 		 */
 		FrameBuffer *reqRawBuffer = request->findBuffer(&rawStream_);
-		FrameBuffer *rawBuffer = cio2_.queueBuffer(request, reqRawBuffer);
+		FrameBuffer *rawBuffer = cio2_.queueBuffer(reqRawBuffer);
 		/*
 		 * \todo If queueBuffer fails in queuing a buffer to the device,
 		 * report the request as error by cancelling the request and