[PATCH v2 1/2] ata: libata-core: make ata_exec_internal_sg() *static*

[Sergey Shtylyov <s.shtylyov@omp.ru>]

ata_exec_internal_sg() is only called by ata_exec_internal() further in
the same file, so we can make it *static* and remove its prototype from
drivers/ata/libata.h...

Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
Changes in version 2:
- new patch.

 drivers/ata/libata-core.c | 8 ++++----
 drivers/ata/libata.h      | 4 ----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 980328a4b896..3cc1312a2622 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1467,10 +1467,10 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
  *	RETURNS:
  *	Zero on success, AC_ERR_* mask on failure
  */
-unsigned ata_exec_internal_sg(struct ata_device *dev,
-			      struct ata_taskfile *tf, const u8 *cdb,
-			      int dma_dir, struct scatterlist *sgl,
-			      unsigned int n_elem, unsigned long timeout)
+static unsigned ata_exec_internal_sg(struct ata_device *dev,
+				     struct ata_taskfile *tf, const u8 *cdb,
+				     int dma_dir, struct scatterlist *sgl,
+				     unsigned int n_elem, unsigned long timeout)
 {
 	struct ata_link *link = dev->link;
 	struct ata_port *ap = link->ap;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 926a7f41303d..1446a482835d 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -53,10 +53,6 @@ extern unsigned ata_exec_internal(struct ata_device *dev,
 				  struct ata_taskfile *tf, const u8 *cdb,
 				  int dma_dir, void *buf, unsigned int buflen,
 				  unsigned long timeout);
-extern unsigned ata_exec_internal_sg(struct ata_device *dev,
-				     struct ata_taskfile *tf, const u8 *cdb,
-				     int dma_dir, struct scatterlist *sg,
-				     unsigned int n_elem, unsigned long timeout);
 extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
 			  int (*check_ready)(struct ata_link *link));
 extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
-- 
2.26.3