diff --git a/include/linux/libata.h b/include/linux/libata.h
index b064bfe..92c6490 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -849,6 +849,7 @@
  */
 extern void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
 extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
+extern int atapi_cmd_type(u8 opcode);
 extern void ata_tf_to_fis(const struct ata_taskfile *tf,
 			  u8 pmp, int is_cmd, u8 *fis);
 extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
@@ -1379,27 +1380,6 @@
 	       ata_id_has_flush_ext(dev->id);
 }
 
-static inline int atapi_cmd_type(u8 opcode)
-{
-	switch (opcode) {
-	case GPCMD_READ_10:
-	case GPCMD_READ_12:
-		return ATAPI_READ;
-
-	case GPCMD_WRITE_10:
-	case GPCMD_WRITE_12:
-	case GPCMD_WRITE_AND_VERIFY_10:
-		return ATAPI_WRITE;
-
-	case GPCMD_READ_CD:
-	case GPCMD_READ_CD_MSF:
-		return ATAPI_READ_CD;
-
-	default:
-		return ATAPI_MISC;
-	}
-}
-
 static inline unsigned int ac_err_mask(u8 status)
 {
 	if (status & (ATA_BUSY | ATA_DRQ))