Provide a description of the function's logic.
Signed-off-by: Heinrich Schuchardt <[email protected]>
---
lib/efi_loader/efi_file.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
index c96a7f7ca3..ae0ca6101b 100644
--- a/lib/efi_loader/efi_file.c
+++ b/lib/efi_loader/efi_file.c
@@ -1098,6 +1098,15 @@ static const struct efi_file_handle
efi_file_handle_protocol = {
/**
* efi_file_from_path() - open file via device path
*
+ * The device path @fp consist of the device path of the handle with the
+ * simple file system protocol and one or more file path device path nodes.
+ * The concatenation of all file path names provides the total file path.
+ *
+ * The code starts at the first file path node and tries to open that file or
+ * directory. If there is a succeding file path node, the code opens it
relative
+ * to this directory and continues iterating until reaching the last file path
+ * node.
+ *
* @fp: device path
* Return: EFI_FILE_PROTOCOL for the file or NULL
*/
--
2.37.2
