Bluetooth: Add BUILD_BUG_ON for size of struct sockaddr_hci

This adds an extra check for ensuring that the size of sockaddr_hci
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/hci_sock.c b/net/bluetooth/hci_sock.c
index 2c245fdf319a60022328e8f3918251db526f88f8..e176a988625ec41241ff8b4fe70d89ee1fda0257 100644 (file)
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1230,6 +1230,8 @@ int __init hci_sock_init(void)
 {
        int err;
 
+       BUILD_BUG_ON(sizeof(struct sockaddr_hci) > sizeof(struct sockaddr));
+
        err = proto_register(&hci_sk_proto, 0);
        if (err < 0)
                return err;