linux-kernel - [PATCH v2 1/2] misc: pvpanic: move bit definition to uapi header file

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Message-Id: <20200102023513.318836-2-pizhenwei@bytedance.com>
Date:   Thu,  2 Jan 2020 10:35:12 +0800
From:   zhenwei pi <pizhenwei@...edance.com>
To:     gregkh@...uxfoundation.org, arnd@...db.de
Cc:     linux-kernel@...r.kernel.org, pizhenwei@...edance.com
Subject: [PATCH v2 1/2] misc: pvpanic: move bit definition to uapi header file

Some processes outside of the kernel(Ex, QEMU) should know what the
value really is for, so move the bit definition to a uapi file.

Suggested-by: Greg KH <gregkh@...uxfoundation.org>
Signed-off-by: zhenwei pi <pizhenwei@...edance.com>
---
 drivers/misc/pvpanic.c      | 3 +--
 include/uapi/misc/pvpanic.h | 8 ++++++++
 2 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 include/uapi/misc/pvpanic.h

diff --git a/drivers/misc/pvpanic.c b/drivers/misc/pvpanic.c
index 95ff7c5a1dfb..3f0de3be0a19 100644
--- a/drivers/misc/pvpanic.c
+++ b/drivers/misc/pvpanic.c
@@ -15,11 +15,10 @@
 #include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/types.h>
+#include <uapi/misc/pvpanic.h>
 
 static void __iomem *base;
 
-#define PVPANIC_PANICKED        (1 << 0)
-
 MODULE_AUTHOR("Hu Tao <hutao@...fujitsu.com>");
 MODULE_DESCRIPTION("pvpanic device driver");
 MODULE_LICENSE("GPL");
diff --git a/include/uapi/misc/pvpanic.h b/include/uapi/misc/pvpanic.h
new file mode 100644
index 000000000000..cae69a822b25
--- /dev/null
+++ b/include/uapi/misc/pvpanic.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+
+#ifndef __PVPANIC_H__
+#define __PVPANIC_H__
+
+#define PVPANIC_PANICKED	(1 << 0)
+
+#endif /* __PVPANIC_H__ */
-- 
2.11.0