diff --git a/debian/patches/lockdep-fix-headers.patch b/debian/patches/lockdep-fix-headers.patch
index c0e3ced12ea7..95f16161fcb5 100644
--- a/debian/patches/lockdep-fix-headers.patch
+++ b/debian/patches/lockdep-fix-headers.patch
@@ -1,3 +1,9 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Thu, 13 Aug 2015 20:48:12 +0200
+Subject: liblockdep: Add more headers and definitions needed by lockdep
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
 --- /dev/null
 +++ b/tools/lib/lockdep/uinclude/linux/export.h
 @@ -0,0 +1,10 @@
diff --git a/debian/patches/lockdep-fix-oot-build.patch b/debian/patches/lockdep-fix-oot-build.patch
index 20117433afad..03bc43298fe1 100644
--- a/debian/patches/lockdep-fix-oot-build.patch
+++ b/debian/patches/lockdep-fix-oot-build.patch
@@ -1,3 +1,9 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Thu, 13 Aug 2015 20:48:12 +0200
+Subject: liblockdep: Fix object file paths used in an out-of-tree build
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
 --- a/tools/lib/lockdep/Makefile
 +++ b/tools/lib/lockdep/Makefile
 @@ -98,7 +98,7 @@ build := -f $(srctree)/tools/build/Makef
diff --git a/debian/patches/lockdep-fix-soname.patch b/debian/patches/lockdep-fix-soname.patch
index 0eea891b77db..a3ac90be902f 100644
--- a/debian/patches/lockdep-fix-soname.patch
+++ b/debian/patches/lockdep-fix-soname.patch
@@ -1,3 +1,9 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Thu, 13 Aug 2015 20:48:12 +0200
+Subject: liblockdep: Remove double-quotes from soname
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
 --- a/tools/lib/lockdep/Makefile
 +++ b/tools/lib/lockdep/Makefile
 @@ -98,7 +98,7 @@ build := -f $(srctree)/tools/build/Makef