[PATCH] dmaengine: idxd: make idxd_register/unregister_dma_channel() static

[Dave Jiang <dave.jiang@xxxxxxxxx>]

Since idxd_register/unregister_dma_channel() are only called locally, make
them static.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
---
 drivers/dma/idxd/dma.c  |    4 ++--
 drivers/dma/idxd/idxd.h |    2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/idxd/dma.c b/drivers/dma/idxd/dma.c
index d66cef5a918e..e0874cb4721c 100644
--- a/drivers/dma/idxd/dma.c
+++ b/drivers/dma/idxd/dma.c
@@ -250,7 +250,7 @@ void idxd_unregister_dma_device(struct idxd_device *idxd)
 	dma_async_device_unregister(&idxd->idxd_dma->dma);
 }
 
-int idxd_register_dma_channel(struct idxd_wq *wq)
+static int idxd_register_dma_channel(struct idxd_wq *wq)
 {
 	struct idxd_device *idxd = wq->idxd;
 	struct dma_device *dma = &idxd->idxd_dma->dma;
@@ -287,7 +287,7 @@ int idxd_register_dma_channel(struct idxd_wq *wq)
 	return 0;
 }
 
-void idxd_unregister_dma_channel(struct idxd_wq *wq)
+static void idxd_unregister_dma_channel(struct idxd_wq *wq)
 {
 	struct idxd_dma_chan *idxd_chan = wq->idxd_chan;
 	struct dma_chan *chan = &idxd_chan->chan;
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index 8e03fb548d13..24e6a0824c64 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -600,8 +600,6 @@ int idxd_enqcmds(struct idxd_wq *wq, void __iomem *portal, const void *desc);
 /* dmaengine */
 int idxd_register_dma_device(struct idxd_device *idxd);
 void idxd_unregister_dma_device(struct idxd_device *idxd);
-int idxd_register_dma_channel(struct idxd_wq *wq);
-void idxd_unregister_dma_channel(struct idxd_wq *wq);
 void idxd_parse_completion_status(u8 status, enum dmaengine_tx_result *res);
 void idxd_dma_complete_txd(struct idxd_desc *desc,
 			   enum idxd_complete_type comp_type, bool free_desc);