2 files changed, 3 insertions, 1 deletions

diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c
index abaeec5f6247..4577d3fe9940 100644
--- a/net/batman-adv/bat_debugfs.c
+++ b/net/batman-adv/bat_debugfs.c
@@ -50,6 +50,7 @@ static void emit_log_char(struct debug_log *debug_log, char c)
                 debug_log->log_start = debug_log->log_end - log_buff_len;
 }
 
+__printf(2, 3)
 static int fdebug_log(struct debug_log *debug_log, char *fmt, ...)
 {
         va_list args;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 148b49e02642..ba28436bcdd6 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -136,7 +136,7 @@ void dec_module_count(void);
 int is_my_mac(uint8_t *addr);
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
-int debug_log(struct bat_priv *bat_priv, char *fmt, ...);
+int debug_log(struct bat_priv *bat_priv, char *fmt, ...) __printf(2, 3);
 
 #define bat_dbg(type, bat_priv, fmt, arg...)                    \
         do {                                                    \
@@ -145,6 +145,7 @@ int debug_log(struct bat_priv *bat_priv, char *fmt, ...);
         }                                                       \
         while (0)
 #else /* !CONFIG_BATMAN_ADV_DEBUG */
+__printf(3, 4)
 static inline void bat_dbg(char type __always_unused,
                            struct bat_priv *bat_priv __always_unused,
                            char *fmt __always_unused, ...)