openwrt/target/linux/brcm2708/patches-4.4/0246-scripts-mkknlimg-Append-a-trailer-for-all-input.patch

From 27c3944874a034975d23722b10d6d7e6b7dd930d Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 18 Apr 2016 11:56:53 +0100
Subject: [PATCH] scripts/mkknlimg: Append a trailer for all input

Now that the firmware assumes an unsigned kernel is DT-capable, it is
helpful to be able to mark a kernel as being non-DT-capable.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
 scripts/mkknlimg | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

--- a/scripts/mkknlimg
+++ b/scripts/mkknlimg
@@ -98,7 +98,7 @@ my $append_trailer;
 my $trailer;
 my $kver = '?';
 
-$append_trailer = $dtok;
+$append_trailer = 1;
 
 if ($res)
 {
@@ -108,7 +108,6 @@ if ($res)
 
     if ($flags & FLAG_PI)
     {
-	$append_trailer = 1;
 	$dtok ||= ($flags & FLAG_DTOK) != 0;
 	$is_270x ||= ($flags & FLAG_270X) != 0;
 	$is_283x ||= ($flags & FLAG_283X) != 0;
@@ -116,18 +115,18 @@ if ($res)
     }
     else
     {
-	print ("* This doesn't look like a Raspberry Pi kernel. In pass-through mode.\n");
+	print ("* This doesn't look like a Raspberry Pi kernel.\n");
     }
 }
 elsif (!$dtok)
 {
-    print ("* Is this a valid kernel? In pass-through mode.\n");
+    print ("* Is this a valid kernel?\n");
 }
 
 if ($append_trailer)
 {
     printf("DT: %s\n", $dtok ? "y" : "n");
-    printf("DDT: %s\n", $ddtk ? "y" : "n") if ($ddtk);
+    printf("DDT: %s\n", $ddtk ? "y" : "n");
     printf("270x: %s\n", $is_270x ? "y" : "n");
     printf("283x: %s\n", $is_283x ? "y" : "n");
 
@@ -136,7 +135,7 @@ if ($append_trailer)
     push @atoms, [ $trailer_magic, pack('V', 0) ];
     push @atoms, [ 'KVer', $kver ];
     push @atoms, [ 'DTOK', pack('V', $dtok) ];
-    push @atoms, [ 'DDTK', pack('V', $ddtk) ] if ($ddtk);
+    push @atoms, [ 'DDTK', pack('V', $ddtk) ];
     push @atoms, [ '270X', pack('V', $is_270x) ];
     push @atoms, [ '283X', pack('V', $is_283x) ];
     push @atoms, [ '283x', pack('V', $is_283x && !$is_270x) ];