From 95d18c5ed0ca952947214c619140e68b33005a4c Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Thu, 10 Nov 2022 14:14:06 +0100 Subject: [PATCH] efi_loader: improve description of efi_file_from_path() Provide a description of the function's logic. Signed-off-by: Heinrich Schuchardt Reviewed-by: Ilias Apalodimas --- 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 c96a7f7..8b9fa588 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 consists 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 */ -- 2.7.4