diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index fbc24358ada030bf3cc329682ee617374229dd3a..b57fad3eb24cf12af58d5bb5b92448fe6bb6312c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -113,7 +113,7 @@ int atapi_enabled = 1;
 module_param(atapi_enabled, int, 0444);
 MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
 
-int atapi_dmadir = 0;
+static int atapi_dmadir = 0;
 module_param(atapi_dmadir, int, 0444);
 MODULE_PARM_DESC(atapi_dmadir, "Enable ATAPI DMADIR bridge support (0=off, 1=on)");
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 6036dedfe377579b494a85cff095a793d2b3331d..aa884f71a12a4733d9de5dab53a42650abdbfd84 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -56,7 +56,6 @@ enum {
 extern unsigned int ata_print_id;
 extern struct workqueue_struct *ata_aux_wq;
 extern int atapi_enabled;
-extern int atapi_dmadir;
 extern int atapi_passthru16;
 extern int libata_fua;
 extern int libata_noacpi;