batman-adv: Add const type qualifier for pointers

batman-adv uses pointers which are marked as const and should not
violate that type qualifier by passing it to functions which force a
cast to the non-const version.

Signed-off-by: Sven Eckelmann <sven@narfation.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index ba28436bcdd6..0150897acf63 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -133,10 +133,10 @@ int mesh_init(struct net_device *soft_iface);
 void mesh_free(struct net_device *soft_iface);
 void inc_module_count(void);
 void dec_module_count(void);
-int is_my_mac(uint8_t *addr);
+int is_my_mac(const uint8_t *addr);
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
-int debug_log(struct bat_priv *bat_priv, char *fmt, ...) __printf(2, 3);
+int debug_log(struct bat_priv *bat_priv, const char *fmt, ...) __printf(2, 3);
 
 #define bat_dbg(type, bat_priv, fmt, arg...)                    \
         do {                                                    \
@@ -148,7 +148,7 @@ int debug_log(struct bat_priv *bat_priv, char *fmt, ...) __printf(2, 3);
 __printf(3, 4)
 static inline void bat_dbg(char type __always_unused,
                            struct bat_priv *bat_priv __always_unused,
-                           char *fmt __always_unused, ...)
+                           const char *fmt __always_unused, ...)
 {
 }
 #endif
@@ -173,11 +173,13 @@ static inline void bat_dbg(char type __always_unused,
  *
  * note: can't use compare_ether_addr() as it requires aligned memory
  */
-static inline int compare_eth(void *data1, void *data2)
+
+static inline int compare_eth(const void *data1, const void *data2)
 {
         return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
 }
 
+
 #define atomic_dec_not_zero(v)  atomic_add_unless((v), -1, 0)
 
 #endif /* _NET_BATMAN_ADV_MAIN_H_ */