From dfeb90478917b7848c89efcc6e1674f992f1ec84 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@nicira.com>
Date: Mon, 6 Jun 2011 11:40:41 -0700
Subject: [PATCH] compiler: Add macro for GCC "sentinel" attribute.

---
 lib/compiler.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/compiler.h b/lib/compiler.h
index 9e9eb827..0d7ee9f6 100644
--- a/lib/compiler.h
+++ b/lib/compiler.h
@@ -25,6 +25,7 @@
 #define MALLOC_LIKE __attribute__((__malloc__))
 #define ALWAYS_INLINE __attribute__((always_inline))
 #define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
+#define SENTINEL(N) __attribute__((sentinel(N)))
 #else
 #define NO_RETURN
 #define OVS_UNUSED
@@ -33,6 +34,7 @@
 #define MALLOC_LIKE
 #define ALWAYS_INLINE
 #define WARN_UNUSED_RESULT
+#define SENTINEL(N)
 #endif
 
 #endif /* compiler.h */
-- 
2.30.2