--- /dev/null
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
+Date: Tue, 3 Apr 2018 14:59:26 +0200
+Subject: [PATCH] Revert "UBUNTU: [Packaging] retpoline -- add safe usage hint
+ support"
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This (partially) reverts commit 1e39020902132b3065bedf0a0c33031e89f9f57a.
+
+this modifies the upstream kernel build to call an Ubuntu script which
+we remove before building. it would also be required by any module
+builds afterwards and is not shipped by Ubuntu's kernel packages either.
+
+Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
+---
+ scripts/Makefile.build | 10 +---------
+ 1 file changed, 1 insertion(+), 9 deletions(-)
+
+diff --git a/scripts/Makefile.build b/scripts/Makefile.build
+index 9dc3f41f4ff5..36247e983f4b 100644
+--- a/scripts/Makefile.build
++++ b/scripts/Makefile.build
+@@ -297,27 +297,19 @@ objtool_dep = $(objtool_obj) \
+ $(wildcard include/config/orc/unwinder.h \
+ include/config/stack/validation.h)
+
+-ifdef CONFIG_RETPOLINE
+-cmd_ubuntu_retpoline = $(CONFIG_SHELL) $(srctree)/debian/scripts/retpoline-extract-one $(@) $(<) "$(filter -m16 %code16gcc.h,$(a_flags))";
+-else
+-cmd_ubuntu_retpoline =
+-endif
+-
+ define rule_cc_o_c
+ $(call echo-cmd,checksrc) $(cmd_checksrc) \
+ $(call cmd_and_fixdep,cc_o_c) \
+ $(cmd_checkdoc) \
+ $(call echo-cmd,objtool) $(cmd_objtool) \
+ $(cmd_modversions_c) \
+- $(call echo-cmd,ubuntu-retpoline) $(cmd_ubuntu_retpoline) \
+ $(call echo-cmd,record_mcount) $(cmd_record_mcount)
+ endef
+
+ define rule_as_o_S
+ $(call cmd_and_fixdep,as_o_S) \
+ $(call echo-cmd,objtool) $(cmd_objtool) \
+- $(cmd_modversions_S) \
+- $(call echo-cmd,ubuntu-retpoline) $(cmd_ubuntu_retpoline)
++ $(cmd_modversions_S)
+ endef
+
+ # List module undefined symbols (or empty line if not enabled)
+--
+2.14.2
+