dmaengine: xgene_dma_init_ring_mngr() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/xgene-dma.c b/drivers/dma/xgene-dma.c
index 2383528..aa61935 100755
--- a/drivers/dma/xgene-dma.c
+++ b/drivers/dma/xgene-dma.c
@@ -1623,7 +1623,7 @@
 		 XGENE_DMA_DEV_ID_RD(val), XGENE_DMA_MAX_CHANNEL);
 }
 
-int xgene_dma_init_ring_mngr(struct xgene_dma *pdma)
+static int xgene_dma_init_ring_mngr(struct xgene_dma *pdma)
 {
 	if (ioread32(pdma->csr_ring + XGENE_DMA_RING_CLKEN) &&
 	    (!ioread32(pdma->csr_ring + XGENE_DMA_RING_SRST)))