* DMA transfer again. This pause feature was implemented to
  * allow safely read residue before channel termination.
  */
-int pl330_pause(struct dma_chan *chan)
+static int pl330_pause(struct dma_chan *chan)
 {
        struct dma_pl330_chan *pch = to_pchan(chan);
        struct pl330_dmac *pl330 = pch->dmac;
        pm_runtime_put_autosuspend(pch->dmac->ddma.dev);
 }
 
-int pl330_get_current_xferred_count(struct dma_pl330_chan *pch,
-               struct dma_pl330_desc *desc)
+static int pl330_get_current_xferred_count(struct dma_pl330_chan *pch,
+                                          struct dma_pl330_desc *desc)
 {
        struct pl330_thread *thrd = pch->thread;
        struct pl330_dmac *pl330 = pch->dmac;