linux-kernel - [PATCH v3 1/8] kernel.h: move taint and system state flags to uapi

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Message-Id: <20200526145815.6415-2-mcgrof@kernel.org>
Date:   Tue, 26 May 2020 14:58:08 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     jeyu@...nel.org, davem@...emloft.net, kuba@...nel.org
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        linux-doc@...r.kernel.org, Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH v3 1/8] kernel.h: move taint and system state flags to uapi

The taint and system state flags will be used in a subsequent patch
exposing these to userspace, so move them to uapi. We keep the
TAINT_FLAGS_COUNT outside of uapi, as this value can change per release.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---
 include/linux/kernel.h      | 34 +---------------------------------
 include/uapi/linux/kernel.h | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 33 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 82d91547d122..337634363d00 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -569,40 +569,8 @@ extern unsigned long get_taint(void);
 extern int root_mountflags;
 
 extern bool early_boot_irqs_disabled;
+extern enum system_states  system_state;
 
-/*
- * Values used for system_state. Ordering of the states must not be changed
- * as code checks for <, <=, >, >= STATE.
- */
-extern enum system_states {
-	SYSTEM_BOOTING,
-	SYSTEM_SCHEDULING,
-	SYSTEM_RUNNING,
-	SYSTEM_HALT,
-	SYSTEM_POWER_OFF,
-	SYSTEM_RESTART,
-	SYSTEM_SUSPEND,
-} system_state;
-
-/* This cannot be an enum because some may be used in assembly source. */
-#define TAINT_PROPRIETARY_MODULE	0
-#define TAINT_FORCED_MODULE		1
-#define TAINT_CPU_OUT_OF_SPEC		2
-#define TAINT_FORCED_RMMOD		3
-#define TAINT_MACHINE_CHECK		4
-#define TAINT_BAD_PAGE			5
-#define TAINT_USER			6
-#define TAINT_DIE			7
-#define TAINT_OVERRIDDEN_ACPI_TABLE	8
-#define TAINT_WARN			9
-#define TAINT_CRAP			10
-#define TAINT_FIRMWARE_WORKAROUND	11
-#define TAINT_OOT_MODULE		12
-#define TAINT_UNSIGNED_MODULE		13
-#define TAINT_SOFTLOCKUP		14
-#define TAINT_LIVEPATCH			15
-#define TAINT_AUX			16
-#define TAINT_RANDSTRUCT		17
 #define TAINT_FLAGS_COUNT		18
 #define TAINT_FLAGS_MAX			((1UL << TAINT_FLAGS_COUNT) - 1)
 
diff --git a/include/uapi/linux/kernel.h b/include/uapi/linux/kernel.h
index 0ff8f7477847..4bbd4093eb64 100644
--- a/include/uapi/linux/kernel.h
+++ b/include/uapi/linux/kernel.h
@@ -12,4 +12,39 @@
 
 #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
 
+/*
+ * Values used for system_state. Ordering of the states must not be changed
+ * as code checks for <, <=, >, >= STATE.
+ */
+enum system_states {
+	SYSTEM_BOOTING,
+	SYSTEM_SCHEDULING,
+	SYSTEM_RUNNING,
+	SYSTEM_HALT,
+	SYSTEM_POWER_OFF,
+	SYSTEM_RESTART,
+	SYSTEM_SUSPEND,
+};
+
+/* This cannot be an enum because some may be used in assembly source. */
+#define TAINT_PROPRIETARY_MODULE	0
+#define TAINT_FORCED_MODULE		1
+#define TAINT_CPU_OUT_OF_SPEC		2
+#define TAINT_FORCED_RMMOD		3
+#define TAINT_MACHINE_CHECK		4
+#define TAINT_BAD_PAGE			5
+#define TAINT_USER			6
+#define TAINT_DIE			7
+#define TAINT_OVERRIDDEN_ACPI_TABLE	8
+#define TAINT_WARN			9
+#define TAINT_CRAP			10
+#define TAINT_FIRMWARE_WORKAROUND	11
+#define TAINT_OOT_MODULE		12
+#define TAINT_UNSIGNED_MODULE		13
+#define TAINT_SOFTLOCKUP		14
+#define TAINT_LIVEPATCH			15
+#define TAINT_AUX			16
+#define TAINT_RANDSTRUCT		17
+/* be sure to update TAINT_FLAGS_COUNT when extending this */
+
 #endif /* _UAPI_LINUX_KERNEL_H */
-- 
2.26.2