linux-kernel - [PATCH 09/10] staging/android: add flags member to sync ioctl structs

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Date:	Fri, 29 Jan 2016 19:20:25 -0200
From:	Gustavo Padovan <gustavo@...ovan.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	dri-devel@...ts.freedesktop.org,
	Daniel Stone <daniels@...labora.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Rob Clark <robdclark@...il.com>,
	Greg Hackmann <ghackmann@...gle.com>,
	John Harrison <John.C.Harrison@...el.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>
Subject: [PATCH 09/10] staging/android: add flags member to sync ioctl structs

From: Gustavo Padovan <gustavo.padovan@...labora.co.uk>

Play safe and add flags member to all structs. So we don't need to
break API or create new IOCTL in the future if new features that requires
flags arises.

Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.co.uk>
---
 drivers/staging/android/uapi/sync.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/staging/android/uapi/sync.h b/drivers/staging/android/uapi/sync.h
index b00f0eb..45921f6 100644
--- a/drivers/staging/android/uapi/sync.h
+++ b/drivers/staging/android/uapi/sync.h
@@ -19,11 +19,13 @@
  * @fd2:	file descriptor of second fence
  * @name:	name of new fence
  * @fence:	returns the fd of the new fence to userspace
+ * @flags:	merge_data flags
  */
 struct sync_merge_data {
 	__s32	fd2; /* fd of second fence */
 	char	name[32]; /* name of new fence */
 	__s32	fence; /* fd on newly created fence */
+	__u32	flags;
 };
 
 /**
@@ -31,12 +33,14 @@ struct sync_merge_data {
  * @obj_name:		name of parent sync_timeline
  * @driver_name:	name of driver implementing the parent
  * @status:		status of the fence 0:active 1:signaled <0:error
+ * @flags:		fence_info flags
  * @timestamp_ns:	timestamp of status change in nanoseconds
  */
 struct fence_info {
 	char	obj_name[32];
 	char	driver_name[32];
 	__s32	status;
+	__u32	flags;
 	__u64	timestamp_ns;
 };
 
@@ -47,6 +51,7 @@ struct fence_info {
  *		userspace including pt_info.
  * @name:	name of fence
  * @status:	status of fence. 1: signaled 0:active <0:error
+ * @flags:	sync_file_info flags
  * @num_fences	number of fences in the sync_file
  * @fence_info:	a fence_info struct for every fence in the sync_file
  */
@@ -54,6 +59,7 @@ struct sync_file_info {
 	__u32	len;
 	char	name[32];
 	__s32	status;
+	__u32	flags;
 	__u32	num_fences;
 
 	__u64	*fence_info;
-- 
2.5.0