tipc: remove unused 'blocked' flag from tipc_link struct

In early versions of TIPC it was possible to administratively block
individual links through the use of the member flag 'blocked'. This
functionality was deemed redundant, and since commit 7368dd ("tipc:
clean out all instances of #if 0'd unused code"), this flag has been
unused.

In the current code, a link only needs to be blocked for sending and
reception if it is subject to an ongoing link failover. In that case,
it is sufficient to check if the number of expected failover packets
is non-zero, something which is done via the funtion 'link_blocked()'.

This commit finally removes the redundant 'blocked' flag completely.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 7 deletions

diff --git a/net/tipc/link.h b/net/tipc/link.h
index 8a6c1026644d..424b1dfe436b 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -112,7 +112,6 @@ struct tipc_stats {
  * @continuity_interval: link continuity testing interval [in ms]
  * @abort_limit: # of unacknowledged continuity probes needed to reset link
  * @state: current state of link FSM
- * @blocked: indicates if link has been administratively blocked
  * @fsm_msg_cnt: # of protocol messages link FSM has sent in current state
  * @proto_msg: template for control messages generated by link
  * @pmsg: convenience pointer to "proto_msg" field
@@ -162,7 +161,6 @@ struct tipc_link {
         u32 continuity_interval;
         u32 abort_limit;
         int state;
-        int blocked;
         u32 fsm_msg_cnt;
         struct {
                 unchar hdr[INT_H_SIZE];
@@ -312,11 +310,6 @@ static inline int link_reset_reset(struct tipc_link *l_ptr)
         return l_ptr->state == RESET_RESET;
 }
 
-static inline int link_blocked(struct tipc_link *l_ptr)
-{
-        return l_ptr->exp_msg_count || l_ptr->blocked;
-}
-
 static inline int link_congested(struct tipc_link *l_ptr)
 {
         return l_ptr->out_queue_size >= l_ptr->queue_limit[0];