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batman-adv: Avoid precedence issues in macros

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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>
This commit is contained in:
Sven Eckelmann
2016-09-21 09:23:50 +02:00
committed by Simon Wunderlich
parent 507b37cf71
commit 4c7da0f6db
3 changed files with 9 additions and 9 deletions
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12
net/batman-adv/log.h
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@@ -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)