nat plugin - fix test logic

warning found by clang:
  warning: logical not is only applied to the left hand side of
  this bitwise operator [-Wlogical-not-parentheses]

Change-Id: I964651a4444b11da145edc329da83675cd830f78
Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>

diff --git a/src/plugins/nat/nat.h b/src/plugins/nat/nat.h
index 9c50a0b..aac46bf 100644 (file)
--- a/src/plugins/nat/nat.h
+++ b/src/plugins/nat/nat.h
@@ -409,7 +409,7 @@ typedef struct {
     @param s SNAT session
     @return 1 if SNAT session is created from static mapping otherwise 0
 */
-#define snat_is_session_static(s) s->flags & SNAT_SESSION_FLAG_STATIC_MAPPING
+#define snat_is_session_static(s) (s->flags & SNAT_SESSION_FLAG_STATIC_MAPPING)
 
 /** \brief Check if SNAT session for unknown protocol.
     @param s SNAT session