logging: add check for logging level in nm_logging_enabled()

With this check, the function is safe to use even with invalid
logging levels. But it can still be inlined as for most cases
@level is a (enum) constant and the check can be evaluated at
compile time.

Oddly enough, on a default build with
  ./autogen.sh && make && strip ./src/NetworkManager
this patch decreases the size of the binary by 8k.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/nm-logging.h b/src/nm-logging.h
index c134670501..1cb5a5a5d9 100644
--- a/src/nm-logging.h
+++ b/src/nm-logging.h
@@ -164,7 +164,8 @@ static inline gboolean
 nm_logging_enabled (NMLogLevel level, NMLogDomain domain)
 {
 	nm_assert (((guint) level) < G_N_ELEMENTS (_nm_logging_enabled_state));
-	return !!(_nm_logging_enabled_state[level] & domain);
+	return    (((guint) level) < G_N_ELEMENTS (_nm_logging_enabled_state))
+	       && !!(_nm_logging_enabled_state[level] & domain);
 }
 
 const char *nm_logging_all_levels_to_string (void);