linux-kernel - [PATCH 1/3] net: fix *_DIAG

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Date:	Thu, 21 Mar 2013 20:33:46 +0400
From:	Andrey Vagin <avagin@...nvz.org>
To:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc:	Pavel Emelyanov <xemul@...allels.com>,
	Andrey Vagin <avagin@...nvz.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	David Howells <dhowells@...hat.com>
Subject: [PATCH 1/3] net: fix *_DIAG_MAX constants

Follow the common pattern and define *_DIAG_MAX like:

        [...]
        __XXX_DIAG_MAX,
};

Because everyone is used to do:

        struct nlattr *attrs[XXX_DIAG_MAX+1];

        nla_parse([...], XXX_DIAG_MAX, [...]

Reported-by: Thomas Graf <tgraf@...g.ch>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Pavel Emelyanov <xemul@...allels.com>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: David Howells <dhowells@...hat.com>
Signed-off-by: Andrey Vagin <avagin@...nvz.org>
---
 include/uapi/linux/packet_diag.h | 4 +++-
 include/uapi/linux/unix_diag.h   | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/packet_diag.h b/include/uapi/linux/packet_diag.h
index 93f5fa9..afafd70 100644
--- a/include/uapi/linux/packet_diag.h
+++ b/include/uapi/linux/packet_diag.h
@@ -33,9 +33,11 @@ enum {
 	PACKET_DIAG_TX_RING,
 	PACKET_DIAG_FANOUT,
 
-	PACKET_DIAG_MAX,
+	__PACKET_DIAG_MAX,
 };
 
+#define PACKET_DIAG_MAX (__PACKET_DIAG_MAX - 1)
+
 struct packet_diag_info {
 	__u32	pdi_index;
 	__u32	pdi_version;
diff --git a/include/uapi/linux/unix_diag.h b/include/uapi/linux/unix_diag.h
index b8a2494..b9e2a6a 100644
--- a/include/uapi/linux/unix_diag.h
+++ b/include/uapi/linux/unix_diag.h
@@ -39,9 +39,11 @@ enum {
 	UNIX_DIAG_MEMINFO,
 	UNIX_DIAG_SHUTDOWN,
 
-	UNIX_DIAG_MAX,
+	__UNIX_DIAG_MAX,
 };
 
+#define UNIX_DIAG_MAX (__UNIX_DIAG_MAX - 1)
+
 struct unix_diag_vfs {
 	__u32	udiag_vfs_ino;
 	__u32	udiag_vfs_dev;
-- 
1.8.1.4

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