peer: store total number of peers instead of iterating

This is faster, since it means adding a new peer is O(1) instead of
O(n). It's also safe to do because we're holding the device_update_lock
on both the ++ and the --.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/src/peer.h b/src/peer.h
index 994c8b6..49784d1 100644
--- a/src/peer.h
+++ b/src/peer.h
@@ -67,6 +67,4 @@ void peer_remove_all(struct wireguard_device *wg);
 
 struct wireguard_peer *peer_lookup_by_index(struct wireguard_device *wg, u32 index);
 
-unsigned int peer_total_count(struct wireguard_device *wg);
-
 #endif /* _WG_PEER_H */