Bluetooth: Add BUILD_BUG_ON for size of struct sockaddr_l2

This adds an extra check for ensuring that the size of sockaddr_l2
does not grow larger than sockaddr.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f65caf41953f866fdea55b8eb342fafc9dc8a1c7..20206cd3acbcab3feef0b858f380d163a5e23ee8 100644 (file)
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1614,6 +1614,8 @@ int __init l2cap_init_sockets(void)
 {
        int err;
 
+       BUILD_BUG_ON(sizeof(struct sockaddr_l2) > sizeof(struct sockaddr));
+
        err = proto_register(&l2cap_proto, 0);
        if (err < 0)
                return err;