ipu_irq_attach_irq 1734 drivers/dma/ipu/ipu_idmac.c 	ret = ipu_irq_attach_irq(&ipu_data, pdev);
ipu_irq_attach_irq  166 drivers/dma/ipu/ipu_intern.h extern int ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev);