batman-adv: Avoid precedence issues in macros
It must be avoided that arguments to a macro are evaluated ungrouped (which
enforces normal operator precendence). Otherwise the result of the macro
is not well defined.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
diff --git a/net/batman-adv/log.h b/net/batman-adv/log.h
index e0e1a88..ab47acf 100644
--- a/net/batman-adv/log.h
+++ b/net/batman-adv/log.h
@@ -71,12 +71,12 @@ int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
__printf(2, 3);
/* possibly ratelimited debug output */
-#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
- do { \
- if (atomic_read(&bat_priv->log_level) & type && \
- (!ratelimited || net_ratelimit())) \
- batadv_debug_log(bat_priv, fmt, ## arg);\
- } \
+#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
+ do { \
+ if (atomic_read(&(bat_priv)->log_level) & (type) && \
+ (!(ratelimited) || net_ratelimit())) \
+ batadv_debug_log(bat_priv, fmt, ## arg); \
+ } \
while (0)
#else /* !CONFIG_BATMAN_ADV_DEBUG */
__printf(4, 5)
