From c7eea31ed8d2c138ff4ebe6e7c9ced3ba7341ab6 Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@ipxe.org>
Date: Wed, 15 Aug 2012 13:20:02 +0100
Subject: [PATCH] [util] Fix up checksum in UNDI ROM header, if present

The UNDI ROM header does contain a checksum byte.  Apparently no-one
cares about this, since iPXE has left it as zero for years without
anyone noticing.

Since Option::ROM now understands the UNDI ROM header, we may as well
fix up the checksum byte for the sake of completeness.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/util/fixrom.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/fixrom.pl b/src/util/fixrom.pl
index 8987b512..dcc38fe4 100755
--- a/src/util/fixrom.pl
+++ b/src/util/fixrom.pl
@@ -32,6 +32,7 @@ foreach my $romfile ( @romfiles ) {
   my $image = $rom;
   while ( $image ) {
     $image->pnp_header->fix_checksum() if $image->pnp_header;
+    $image->undi_header->fix_checksum() if $image->undi_header;
     $image->ipxe_header->fix_checksum() if $image->ipxe_header;
     $image->fix_checksum();
     $image = $image->next_image();