atm: 32-bit ioctl compatibility

[linux-2.6-omap-h63xx.git] / net / atm / svc.c

diff --git a/net/atm/svc.c b/net/atm/svc.c
index de1e4f2f3a43ea983f9a4eef973618772b69cc82..e9c65500f84ef202edfc8923e6bae2afdd45bbfa 100644 (file)
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -604,6 +604,22 @@ static int svc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
        return error;
 }
 
+#ifdef CONFIG_COMPAT
+static int svc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+       /* The definition of ATM_ADDPARTY uses the size of struct atm_iobuf.
+          But actually it takes a struct sockaddr_atmsvc, which doesn't need
+          compat handling. So all we have to do is fix up cmd... */
+       if (cmd == COMPAT_ATM_ADDPARTY)
+               cmd = ATM_ADDPARTY;
+
+       if (cmd == ATM_ADDPARTY || cmd == ATM_DROPPARTY)
+               return svc_ioctl(sock, cmd, arg);
+       else
+               return vcc_compat_ioctl(sock, cmd, arg);
+}
+#endif /* CONFIG_COMPAT */
+
 static const struct proto_ops svc_proto_ops = {
        .family =       PF_ATMSVC,
        .owner =        THIS_MODULE,
@@ -616,6 +632,9 @@ static const struct proto_ops svc_proto_ops = {
        .getname =      svc_getname,
        .poll =         vcc_poll,
        .ioctl =        svc_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl = svc_compat_ioctl,
+#endif
        .listen =       svc_listen,
        .shutdown =     svc_shutdown,
        .setsockopt =   svc_setsockopt,