RDMA/nes: Remove session_id from nes_cm stuff

The session_id members of struct nes_cm_listener and struct
nes_cm_node are write-only, so remove them.  This allows the
session_id member of struct nes_cm_core to be removed as well, since
it is only used to write those other session_id values.

This removes the use of current->tgid (which will be deprecated)
pointed out by Pavel Emelyanov <xemul@openvz.org>.

Acked-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

2 files changed, 0 insertions, 9 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index d40465c45906..24d266459d14 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -366,7 +366,6 @@ static void print_core(struct nes_cm_core *core)
         if (!core)
                 return;
         nes_debug(NES_DBG_CM, "---------------------------------------------\n");
-        nes_debug(NES_DBG_CM, "Session ID    : %u \n", atomic_read(&core->session_id));
 
         nes_debug(NES_DBG_CM, "State         : %u \n",  core->state);
 
@@ -1101,8 +1100,6 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
         cm_node->tcp_cntxt.rcv_nxt = 0;
         /* get a unique session ID , add thread_id to an upcounter to handle race */
         atomic_inc(&cm_core->node_cnt);
-        atomic_inc(&cm_core->session_id);
-        cm_node->session_id = (u32)(atomic_read(&cm_core->session_id) + current->tgid);
         cm_node->conn_type = cm_info->conn_type;
         cm_node->apbvt_set = 0;
         cm_node->accept_pend = 0;
@@ -1629,9 +1626,7 @@ static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core,
         listener->cm_core = cm_core;
         listener->nesvnic = nesvnic;
         atomic_inc(&cm_core->node_cnt);
-        atomic_inc(&cm_core->session_id);
 
-        listener->session_id = (u32)(atomic_read(&cm_core->session_id) + current->tgid);
         listener->conn_type = cm_info->conn_type;
         listener->backlog = cm_info->backlog;
         listener->listener_state = NES_CM_LISTENER_ACTIVE_STATE;
@@ -1944,7 +1939,6 @@ static struct nes_cm_core *nes_cm_alloc_core(void)
         cm_core->state = NES_CM_STATE_INITED;
         cm_core->free_tx_pkt_max = NES_CM_DEFAULT_FREE_PKTS;
 
-        atomic_set(&cm_core->session_id, 0);
         atomic_set(&cm_core->events_posted, 0);
 
         /* init the packet lists */
diff --git a/drivers/infiniband/hw/nes/nes_cm.h b/drivers/infiniband/hw/nes/nes_cm.h
index 980fb6718628..7717cb2ab500 100644
--- a/drivers/infiniband/hw/nes/nes_cm.h
+++ b/drivers/infiniband/hw/nes/nes_cm.h
@@ -225,7 +225,6 @@ enum nes_cm_listener_state {
 
 struct nes_cm_listener {
         struct list_head           list;
-        u64                        session_id;
         struct nes_cm_core         *cm_core;
         u8                         loc_mac[ETH_ALEN];
         nes_addr_t                 loc_addr;
@@ -242,7 +241,6 @@ struct nes_cm_listener {
 
 /* per connection node and node state information */
 struct nes_cm_node {
-        u64                       session_id;
         u32                       hashkey;
 
         nes_addr_t                loc_addr, rem_addr;
@@ -327,7 +325,6 @@ struct nes_cm_event {
 
 struct nes_cm_core {
         enum nes_cm_node_state  state;
-        atomic_t                session_id;
 
         atomic_t                listen_node_cnt;
         struct nes_cm_node      listen_list;