[PATCH 4.2 03/54] af_unix: Convert the unix_sk macro to an inline function for type safety

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.2 03/54] af_unix: Convert the unix_sk macro to an inline function for type safety
Date	2015-10-23 20:20 +0200
Message-ID	<qmP6A-Po-47@gated-at.bofh.it> (permalink)
References	<qmODw-8sm-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aaron Conole <aconole@bytheb.org>

[ Upstream commit 4613012db1d911f80897f9446a49de817b2c4c47 ]

As suggested by Eric Dumazet this change replaces the
#define with a static inline function to enjoy
complaints by the compiler when misusing the API.

Signed-off-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/af_unix.h |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -63,7 +63,11 @@ struct unix_sock {
 #define UNIX_GC_MAYBE_CYCLE	1
 	struct socket_wq	peer_wq;
 };
-#define unix_sk(__sk) ((struct unix_sock *)__sk)
+
+static inline struct unix_sock *unix_sk(struct sock *sk)
+{
+	return (struct unix_sock *)sk;
+}
 
 #define peer_wait peer_wq.wait
 


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[PATCH 4.2 03/54] af_unix: Convert the unix_sk macro to an inline function for type safety Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-23 20:20 +0200

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