iio_dma_fence
struct iio_dma_fence *iio_fence =
container_of(fence, struct iio_dma_fence, base);
struct iio_dma_fence *fence;
struct iio_dma_fence *fence =
container_of(work, struct iio_dma_fence, work);
struct iio_dma_fence *iio_fence =
container_of(fence, struct iio_dma_fence, base);