From c5cec3c71c1c9d4a406f91e7ea77b1943f86ebc3 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keirf@google.com>
Date: Mon, 13 May 2024 10:11:34 +0000
Subject: [PATCH] mkbootfs: Allow invocation with no directories specified

1. A non-empty archive can still be generated, if a dev nodes
file is specified; and
2. cpio itself handles the case of an empty archive
(containing only the trailer entry), for example:
  echo -n | cpio -oc | cpio -it

Bug: 328362894
Change-Id: If17796f445e50842249554a1e82478bc375cf5eb
---
 mkbootfs/mkbootfs.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/mkbootfs/mkbootfs.c b/mkbootfs/mkbootfs.c
index eaa5d55b4..84a0a4eee 100644
--- a/mkbootfs/mkbootfs.c
+++ b/mkbootfs/mkbootfs.c
@@ -445,11 +445,6 @@ int main(int argc, char *argv[])
     int num_dirs = argc - optind;
     argv += optind;
 
-    if (num_dirs <= 0) {
-        usage();
-        errx(1, "no directories to process?!");
-    }
-
     while(num_dirs-- > 0){
         char *x = strchr(*argv, '=');
         if(x != 0) {