net/atm/signaling.c: remove WAIT_FOR_DEMON code

WAIT_FOR_DEMON code is directly undefined at the beginning
of signaling.c since initial git version and thus never compiled.
This also removes buggy current->state direct access.

Suggested-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/atm/signaling.c b/net/atm/signaling.c
index 523bce7..4fd6af4 100644 (file)
--- a/net/atm/signaling.c
+++ b/net/atm/signaling.c
@@ -19,36 +19,15 @@
 #include "resources.h"
 #include "signaling.h"
 
-#undef WAIT_FOR_DEMON          /* #define this if system calls on SVC sockets
-                                  should block until the demon runs.
-                                  Danger: may cause nasty hangs if the demon
-                                  crashes. */
-
 struct atm_vcc *sigd = NULL;
-#ifdef WAIT_FOR_DEMON
-static DECLARE_WAIT_QUEUE_HEAD(sigd_sleep);
-#endif
 
 static void sigd_put_skb(struct sk_buff *skb)
 {
-#ifdef WAIT_FOR_DEMON
-       DECLARE_WAITQUEUE(wait, current);
-
-       add_wait_queue(&sigd_sleep, &wait);
-       while (!sigd) {
-               set_current_state(TASK_UNINTERRUPTIBLE);
-               pr_debug("atmsvc: waiting for signaling daemon...\n");
-               schedule();
-       }
-       current->state = TASK_RUNNING;
-       remove_wait_queue(&sigd_sleep, &wait);
-#else
        if (!sigd) {
                pr_debug("atmsvc: no signaling daemon\n");
                kfree_skb(skb);
                return;
        }
-#endif
        atm_force_charge(sigd, skb->truesize);
        skb_queue_tail(&sk_atm(sigd)->sk_receive_queue, skb);
        sk_atm(sigd)->sk_data_ready(sk_atm(sigd));
@@ -261,8 +240,5 @@ int sigd_attach(struct atm_vcc *vcc)
        vcc_insert_socket(sk_atm(vcc));
        set_bit(ATM_VF_META, &vcc->flags);
        set_bit(ATM_VF_READY, &vcc->flags);
-#ifdef WAIT_FOR_DEMON
-       wake_up(&sigd_sleep);
-#endif
        return 0;
 }