From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001

From: Eugene Syromiatnikov <esyr@redhat.com>

Date: Thu, 14 Jun 2018 16:35:59 -0400

Subject: [PATCH] add Red Hat-specific taint flags

Message-id: <56f71e5f8cf63afd0cdb1c4550c625cc90d59a75.1528991395.git.esyr@redhat.com>

Patchwork-id: 8249

O-Subject: [kernel team] [RHEL8 PATCH v4 1/5] kernel: add Red Hat-specific taint flags

Bugzilla: 1559877

RH-Acked-by: Jiri Benc <jbenc@redhat.com>

RH-Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>

Based on RHEL 7 commit "Backport RH specific TAINT flags" by Prarit

Bhargava.

Upstream Status: RHEL only

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1559877

Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=16716594

Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>

---

 include/linux/kernel.h | 19 ++++++++++++++++++-

 kernel/panic.c         | 14 ++++++++++++++

 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h

index b82db0c0caec..28be75396242 100644

--- a/include/linux/kernel.h

+++ b/include/linux/kernel.h

@@ -603,7 +603,24 @@ extern enum system_states {

 #define TAINT_LIVEPATCH			15

 #define TAINT_AUX			16

 #define TAINT_RANDSTRUCT		17

-#define TAINT_FLAGS_COUNT		18

+/* Start of Red Hat-specific taint flags */

+#define TAINT_18			18

+#define TAINT_19			19

+#define TAINT_20			20

+#define TAINT_21			21

+#define TAINT_22			22

+#define TAINT_23			23

+#define TAINT_24			24

+#define TAINT_25			25

+#define TAINT_26			26

+#define TAINT_27			27

+/* Bits 28 - 31 are reserved for Red Hat use only */

+#define TAINT_RESERVED28		28

+#define TAINT_RESERVED29		29

+#define TAINT_RESERVED30		30

+#define TAINT_RESERVED31		31

+/* End of Red Hat-specific taint flags */

+#define TAINT_FLAGS_COUNT		32

 #define TAINT_FLAGS_MAX			((1UL << TAINT_FLAGS_COUNT) - 1)

 struct taint_flag {

diff --git a/kernel/panic.c b/kernel/panic.c

index 85568bbfb12b..087392cd7dc8 100644

--- a/kernel/panic.c

+++ b/kernel/panic.c

@@ -386,6 +386,20 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {

 	[ TAINT_LIVEPATCH ]		= { 'K', ' ', true },

 	[ TAINT_AUX ]			= { 'X', ' ', true },

 	[ TAINT_RANDSTRUCT ]		= { 'T', ' ', true },

+	[ TAINT_18 ]			= { '?', '-', false },

+	[ TAINT_19 ]			= { '?', '-', false },

+	[ TAINT_20 ]			= { '?', '-', false },

+	[ TAINT_21 ]			= { '?', '-', false },

+	[ TAINT_22 ]			= { '?', '-', false },

+	[ TAINT_23 ]			= { '?', '-', false },

+	[ TAINT_24 ]			= { '?', '-', false },

+	[ TAINT_25 ]			= { '?', '-', false },

+	[ TAINT_26 ]			= { '?', '-', false },

+	[ TAINT_27 ]			= { '?', '-', false },

+	[ TAINT_RESERVED28 ]		= { '?', '-', false },

+	[ TAINT_RESERVED29 ]		= { '?', '-', false },

+	[ TAINT_RESERVED30 ]		= { '?', '-', false },

+	[ TAINT_RESERVED31 ]		= { '?', '-', false },

 };

 /**

-- 

2.26.2