diff --git a/include/linux/ata.h b/include/linux/ata.h
index e3050e153a7162652232c97d37b8d3716310368b..c04aca58448aa22ae28c4ac6d6239fda4f577121 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -698,15 +698,6 @@ static inline bool ata_id_has_lba48(const u16 *id)
 	return id[ATA_ID_COMMAND_SET_2] & (1 << 10);
 }
 
-static inline bool ata_id_lba48_enabled(const u16 *id)
-{
-	if (ata_id_has_lba48(id) == 0)
-		return false;
-	if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
-		return false;
-	return id[ATA_ID_CFS_ENABLE_2] & (1 << 10);
-}
-
 static inline bool ata_id_hpa_enabled(const u16 *id)
 {
 	/* Yes children, word 83 valid bits cover word 82 data */