linux-kernel - [PATCH v2 2/6] bus: fsl-mc: move fsl_mc

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Message-Id: <1b6473b17a61f2cea51258a7220c9a1b741c646b.1521132659.git.ioana.ciornei@nxp.com>
Date:   Thu, 15 Mar 2018 12:05:32 -0500
From:   Ioana Ciornei <ioana.ciornei@....com>
To:     gregkh@...uxfoundation.org, laurentiu.tudor@....com
Cc:     linux-kernel@...r.kernel.org, stuyoder@...il.com,
        ruxandra.radulescu@....com, razvan.stefanescu@....com,
        Roy.Pledge@....com, arnd@...db.de,
        Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH v2 2/6] bus: fsl-mc: move fsl_mc_command struct in a uapi header

Define "struct fsl_mc_command" as a structure that can cross the
user/kernel boundary. Also change the variable types used with
the proper ones.

Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
Changes in v2:
  - added the patch itself

 MAINTAINERS                 |  1 +
 include/linux/fsl/mc.h      |  8 +-------
 include/uapi/linux/fsl_mc.h | 23 +++++++++++++++++++++++
 3 files changed, 25 insertions(+), 7 deletions(-)
 create mode 100644 include/uapi/linux/fsl_mc.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 473ac00..4f54765 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11463,6 +11463,7 @@ S:	Maintained
 F:	drivers/bus/fsl-mc/
 F:	Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
 F:	Documentation/networking/dpaa2/overview.rst
+F:	include/uapi/linux/fsl_mc.h
 
 QT1010 MEDIA DRIVER
 M:	Antti Palosaari <crope@....fi>
diff --git a/include/linux/fsl/mc.h b/include/linux/fsl/mc.h
index f27cb14..19a352b 100644
--- a/include/linux/fsl/mc.h
+++ b/include/linux/fsl/mc.h
@@ -12,6 +12,7 @@
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
 #include <linux/interrupt.h>
+#include <uapi/linux/fsl_mc.h>
 
 #define FSL_MC_VENDOR_FREESCALE	0x1957
 
@@ -198,8 +199,6 @@ struct fsl_mc_device {
 #define to_fsl_mc_device(_dev) \
 	container_of(_dev, struct fsl_mc_device, dev)
 
-#define MC_CMD_NUM_OF_PARAMS	7
-
 struct mc_cmd_header {
 	u8 src_id;
 	u8 flags_hw;
@@ -209,11 +208,6 @@ struct mc_cmd_header {
 	__le16 cmd_id;
 };
 
-struct fsl_mc_command {
-	u64 header;
-	u64 params[MC_CMD_NUM_OF_PARAMS];
-};
-
 enum mc_cmd_status {
 	MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
 	MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
diff --git a/include/uapi/linux/fsl_mc.h b/include/uapi/linux/fsl_mc.h
new file mode 100644
index 0000000..90892c4
--- /dev/null
+++ b/include/uapi/linux/fsl_mc.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Management Complex (MC) userspace public interface
+ *
+ * Copyright 2018 NXP
+ *
+ */
+#ifndef _UAPI_FSL_MC_H_
+#define _UAPI_FSL_MC_H_
+
+#define MC_CMD_NUM_OF_PARAMS	7
+
+/**
+ * struct fsl_mc_command - Management Complex (MC) command structure
+ * @header: MC command header
+ * @params: MC command parameters
+ */
+struct fsl_mc_command {
+	__u64 header;
+	__u64 params[MC_CMD_NUM_OF_PARAMS];
+};
+
+#endif /* _UAPI_FSL_MC_H_ */
-- 
1.9.1