make sata_set_spd_needed() static

sata_set_spd_needed() can now become static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index ce76702..51b7d2f 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2772,7 +2772,7 @@
  *	RETURNS:
  *	1 if SATA spd configuration is needed, 0 otherwise.
  */
-int sata_set_spd_needed(struct ata_link *link)
+static int sata_set_spd_needed(struct ata_link *link)
 {
 	u32 scontrol;
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 4aeeabb..ae2cfd9 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -101,7 +101,6 @@
 			      unsigned int readid_flags);
 extern int ata_dev_configure(struct ata_device *dev);
 extern int sata_down_spd_limit(struct ata_link *link);
-extern int sata_set_spd_needed(struct ata_link *link);
 extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
 extern void ata_sg_clean(struct ata_queued_cmd *qc);
 extern void ata_qc_free(struct ata_queued_cmd *qc);