linux-kernel - [PATCH 1/3] tun: move internal flag defines out of uapi

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Date:	Wed, 19 Nov 2014 18:18:30 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	rusty@...tcorp.com.au, davem@...emloft.net,
	Jason Wang <jasowang@...hat.com>,
	Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>,
	Tom Herbert <therbert@...gle.com>,
	Ben Hutchings <ben@...adent.org.uk>,
	Masatake YAMATO <yamato@...hat.com>, Xi Wang <xii@...gle.com>,
	netdev@...r.kernel.org, linux-api@...r.kernel.org
Subject: [PATCH 1/3] tun: move internal flag defines out of uapi

TUN_ flags are internal and never exposed
to userspace. Any application using it is almost
certainly buggy.

Move them out to tun.c, we'll remove them in follow-up patches.

Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---
 include/uapi/linux/if_tun.h | 14 --------------
 drivers/net/tun.c           | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index e9502dd..b82c276 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -23,20 +23,6 @@
 /* Read queue size */
 #define TUN_READQ_SIZE	500
 
-/* TUN device flags */
-#define TUN_TUN_DEV 	0x0001	
-#define TUN_TAP_DEV	0x0002
-#define TUN_TYPE_MASK   0x000f
-
-#define TUN_FASYNC	0x0010
-#define TUN_NOCHECKSUM	0x0020
-#define TUN_NO_PI	0x0040
-/* This flag has no real effect */
-#define TUN_ONE_QUEUE	0x0080
-#define TUN_PERSIST 	0x0100	
-#define TUN_VNET_HDR 	0x0200
-#define TUN_TAP_MQ      0x0400
-
 /* Ioctl defines */
 #define TUNSETNOCSUM  _IOW('T', 200, int) 
 #define TUNSETDEBUG   _IOW('T', 201, int) 
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 2e18ddd..81735f5 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -103,6 +103,20 @@ do {								\
 } while (0)
 #endif
 
+/* TUN device flags */
+#define TUN_TUN_DEV 	0x0001
+#define TUN_TAP_DEV	0x0002
+#define TUN_TYPE_MASK   0x000f
+
+#define TUN_FASYNC	0x0010
+#define TUN_NOCHECKSUM	0x0020
+#define TUN_NO_PI	0x0040
+/* This flag has no real effect */
+#define TUN_ONE_QUEUE	0x0080
+#define TUN_PERSIST 	0x0100
+#define TUN_VNET_HDR 	0x0200
+#define TUN_TAP_MQ      0x0400
+
 #define GOODCOPY_LEN 128
 
 #define FLT_EXACT_COUNT 8
-- 
MST

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