efi_loader: complete EFI_DEVICE_PATH_UTILITIES_PROTOCOL

The missing services of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL are
implemented.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/efi_loader.h b/include/efi_loader.h
index 1298b5e160..8d21ba74b1 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -337,6 +337,15 @@ struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
 struct efi_device_path *efi_dp_create_device_node(const u8 type,
 						  const u8 sub_type,
 						  const u16 length);
+/* Append device path instance */
+struct efi_device_path *efi_dp_append_instance(
+		const struct efi_device_path *dp,
+		const struct efi_device_path *dpi);
+/* Get next device path instance */
+struct efi_device_path *efi_dp_get_next_instance(struct efi_device_path **dp,
+						 efi_uintn_t *size);
+/* Check if a device path contains muliple instances */
+bool efi_dp_is_multi_instance(const struct efi_device_path *dp);
 
 struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
 struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);