batman-adv: Prefix ring_buffer non-static functions with batadv_

batman-adv can be compiled as part of the kernel instead of an module. In that
case the linker will see all non-static symbols of batman-adv and all other
non-static symbols of the kernel. This could lead to symbol collisions. A
prefix for the batman-adv symbols that defines their private namespace avoids
such a problem.

Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

3 files changed, 13 insertions, 11 deletions

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 9c8c9d017d00..cd57cf2022c5 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -642,10 +642,10 @@ static void bat_iv_ogm_orig_update(struct bat_priv *bat_priv,
                         continue;
 
                 spin_lock_bh(&tmp_neigh_node->lq_update_lock);
-                ring_buffer_set(tmp_neigh_node->tq_recv,
-                                &tmp_neigh_node->tq_index, 0);
+                batadv_ring_buffer_set(tmp_neigh_node->tq_recv,
+                                       &tmp_neigh_node->tq_index, 0);
                 tmp_neigh_node->tq_avg =
-                        ring_buffer_avg(tmp_neigh_node->tq_recv);
+                        batadv_ring_buffer_avg(tmp_neigh_node->tq_recv);
                 spin_unlock_bh(&tmp_neigh_node->lq_update_lock);
         }
 
@@ -673,10 +673,10 @@ static void bat_iv_ogm_orig_update(struct bat_priv *bat_priv,
         neigh_node->last_seen = jiffies;
 
         spin_lock_bh(&neigh_node->lq_update_lock);
-        ring_buffer_set(neigh_node->tq_recv,
-                        &neigh_node->tq_index,
-                        batman_ogm_packet->tq);
-        neigh_node->tq_avg = ring_buffer_avg(neigh_node->tq_recv);
+        batadv_ring_buffer_set(neigh_node->tq_recv,
+                               &neigh_node->tq_index,
+                               batman_ogm_packet->tq);
+        neigh_node->tq_avg = batadv_ring_buffer_avg(neigh_node->tq_recv);
         spin_unlock_bh(&neigh_node->lq_update_lock);
 
         if (!is_duplicate) {
diff --git a/net/batman-adv/ring_buffer.c b/net/batman-adv/ring_buffer.c
index fd63951d118d..db8f5ef83d3e 100644
--- a/net/batman-adv/ring_buffer.c
+++ b/net/batman-adv/ring_buffer.c
@@ -22,13 +22,14 @@
 #include "main.h"
 #include "ring_buffer.h"
 
-void ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index, uint8_t value)
+void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
+                            uint8_t value)
 {
         lq_recv[*lq_index] = value;
         *lq_index = (*lq_index + 1) % TQ_GLOBAL_WINDOW_SIZE;
 }
 
-uint8_t ring_buffer_avg(const uint8_t lq_recv[])
+uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
 {
         const uint8_t *ptr;
         uint16_t count = 0, i = 0, sum = 0;
diff --git a/net/batman-adv/ring_buffer.h b/net/batman-adv/ring_buffer.h
index 8b58bd82767d..fbaf9d29d1d7 100644
--- a/net/batman-adv/ring_buffer.h
+++ b/net/batman-adv/ring_buffer.h
@@ -22,7 +22,8 @@
 #ifndef _NET_BATMAN_ADV_RING_BUFFER_H_
 #define _NET_BATMAN_ADV_RING_BUFFER_H_
 
-void ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index, uint8_t value);
-uint8_t ring_buffer_avg(const uint8_t lq_recv[]);
+void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
+                            uint8_t value);
+uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[]);
 
 #endif /* _NET_BATMAN_ADV_RING_BUFFER_H_ */