efi_loader: implement CreateDeviceNode

Implement the CreateDeviceNode service of the device path utility protocol.

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

1 files changed, 4 insertions, 1 deletions

diff --git a/include/efi_loader.h b/include/efi_loader.h
index 17f9d3d1ef..0358bcb1d7 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -330,7 +330,10 @@ struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
 				      const struct efi_device_path *dp2);
 struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
 					   const struct efi_device_path *node);
-
+/* Create a device path node of given type, sub-type, length */
+struct efi_device_path *efi_dp_create_device_node(const u8 type,
+						  const u8 sub_type,
+						  const u16 length);
 
 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);