1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 33f3ab4eb827..7c09540c52bc 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -424,7 +424,6 @@ extern unsigned int ata_dev_classify(struct ata_taskfile *tf);
 extern void ata_dev_id_string(u16 *id, unsigned char *s,
                               unsigned int ofs, unsigned int len);
 extern void ata_dev_config(struct ata_port *ap, unsigned int i);
-extern void ata_dev_set_protocol(struct ata_device *dev);
 extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
 extern void ata_bmdma_start (struct ata_queued_cmd *qc);
 extern void ata_bmdma_stop(struct ata_queued_cmd *qc);