kernel/0001-add-Red-Hat-specific-taint-flags.patch

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 2cb1c4fea0c9..c041d4e950f4 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -595,7 +595,24 @@ 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

 struct taint_flag {
 	char c_true;	/* character printed when tainted */
diff --git a/kernel/panic.c b/kernel/panic.c
index b69ee9e76cb2..02f9b2c36cc1 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -376,6 +376,20 @@ 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