[PATCH 068/112] efi: define efi_handle_t as opaque pointer

[Ahmad Fatoum]

Typedef'ing efi_handle_t as void * means that we don't catch instance
where we pass a double indirect pointer when a normal pointer is
expected.

With loader support, we will start to dereference it anyway, so have it
point at an opaque type instead.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 drivers/efi/efi-device.c | 12 ++++++------
 include/efi/types.h      |  4 +++-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/efi/efi-device.c b/drivers/efi/efi-device.c
index a533bc43eb37..3a16deab5f6b 100644
--- a/drivers/efi/efi-device.c
+++ b/drivers/efi/efi-device.c
@@ -53,7 +53,7 @@ static int efi_locate_handle(enum efi_locate_search_type search_type,
 	return 0;
 }
 
-static struct efi_device *efi_find_device(efi_handle_t *handle)
+static struct efi_device *efi_find_device(efi_handle_t handle)
 {
 	struct device *dev;
 	struct efi_device *efidev;
@@ -80,10 +80,10 @@ static void efi_devinfo(struct device *dev)
 					efi_guid_string(&efidev->guids[i]));
 }
 
-static efi_handle_t *efi_find_parent(efi_handle_t *handle)
+static efi_handle_t efi_find_parent(efi_handle_t handle)
 {
 	unsigned long handle_count = 0;
-        efi_handle_t *handles = NULL, *parent;
+	efi_handle_t *handles = NULL, parent;
 	unsigned long num_guids;
 	efi_guid_t **guids;
 	int ret, i, j, k;
@@ -134,7 +134,7 @@ static efi_handle_t *efi_find_parent(efi_handle_t *handle)
 	return parent;
 }
 
-static struct efi_device *efi_add_device(efi_handle_t *handle, efi_guid_t **guids,
+static struct efi_device *efi_add_device(efi_handle_t handle, efi_guid_t **guids,
 		int num_guids)
 {
 	struct efi_device *efidev;
@@ -238,7 +238,7 @@ static int efi_register_device(struct efi_device *efidev)
 void efi_register_devices(void)
 {
 	unsigned long handle_count = 0;
-        efi_handle_t *handles = NULL;
+	efi_handle_t *handles = NULL;
 	unsigned long num_guids;
 	efi_guid_t **guids;
 	int ret, i;
@@ -402,7 +402,7 @@ static void efi_set_bootsource(void)
 	enum bootsource src = BOOTSOURCE_UNKNOWN;
 	int instance = BOOTSOURCE_INSTANCE_UNKNOWN;
 
-	efi_handle_t *efi_parent;
+	efi_handle_t efi_parent;
 
 	if (!efi_loaded_image->parent_handle)
 		goto out;
diff --git a/include/efi/types.h b/include/efi/types.h
index 6e134387692f..3309820416be 100644
--- a/include/efi/types.h
+++ b/include/efi/types.h
@@ -9,7 +9,9 @@
 typedef unsigned long efi_status_t;
 typedef u16 efi_char16_t;		/* UNICODE character */
 typedef u64 efi_physical_addr_t;
-typedef void *efi_handle_t;
+
+struct efi_object;
+typedef struct efi_object *efi_handle_t;
 
 /*
  * The UEFI spec and EDK2 reference implementation both define EFI_GUID as
-- 
2.39.2