Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband upate from Roland Dreier:
 "First batch of InfiniBand/RDMA changes for the 3.8 merge window:
   - A good chunk of Bart Van Assche's SRP fixes
   - UAPI disintegration from David Howells
   - mlx4 support for "64-byte CQE" hardware feature from Or Gerlitz
   - Other miscellaneous fixes"

Fix up trivial conflict in mellanox/mlx4 driver.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (33 commits)
  RDMA/nes: Fix for crash when registering zero length MR for CQ
  RDMA/nes: Fix for terminate timer crash
  RDMA/nes: Fix for BUG_ON due to adding already-pending timer
  IB/srp: Allow SRP disconnect through sysfs
  srp_transport: Document sysfs attributes
  srp_transport: Simplify attribute initialization code
  srp_transport: Fix attribute registration
  IB/srp: Document sysfs attributes
  IB/srp: send disconnect request without waiting for CM timewait exit
  IB/srp: destroy and recreate QP and CQs when reconnecting
  IB/srp: Eliminate state SRP_TARGET_DEAD
  IB/srp: Introduce the helper function srp_remove_target()
  IB/srp: Suppress superfluous error messages
  IB/srp: Process all error completions
  IB/srp: Introduce srp_handle_qp_err()
  IB/srp: Simplify SCSI error handling
  IB/srp: Keep processing commands during host removal
  IB/srp: Eliminate state SRP_TARGET_CONNECTING
  IB/srp: Increase block layer timeout
  RDMA/cm: Change return value from find_gid_port()
  ...

1 files changed, 9 insertions, 23 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index cfaacaf6bf5f..22ea67eea5dc 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -629,11 +629,9 @@ static void build_rdma0_msg(struct nes_cm_node *cm_node, struct nes_qp **nesqp_a
 
 	case SEND_RDMA_READ_ZERO:
 	default:
-		if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO) {
-			printk(KERN_ERR "%s[%u]: Unsupported RDMA0 len operation=%u\n",
-				 __func__, __LINE__, cm_node->send_rdma0_op);
-			WARN_ON(1);
-		}
+		if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO)
+			WARN(1, "Unsupported RDMA0 len operation=%u\n",
+			     cm_node->send_rdma0_op);
 		nes_debug(NES_DBG_CM, "Sending first rdma operation.\n");
 		wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
 			cpu_to_le32(NES_IWARP_SQ_OP_RDMAR);
@@ -671,7 +669,6 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
 	struct nes_cm_core *cm_core = cm_node->cm_core;
 	struct nes_timer_entry *new_send;
 	int ret = 0;
-	u32 was_timer_set;
 
 	new_send = kzalloc(sizeof(*new_send), GFP_ATOMIC);
 	if (!new_send)
@@ -723,12 +720,8 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
 		}
 	}
 
-	was_timer_set = timer_pending(&cm_core->tcp_timer);
-
-	if (!was_timer_set) {
-		cm_core->tcp_timer.expires = new_send->timetosend;
-		add_timer(&cm_core->tcp_timer);
-	}
+	if (!timer_pending(&cm_core->tcp_timer))
+		mod_timer(&cm_core->tcp_timer, new_send->timetosend);
 
 	return ret;
 }
@@ -946,10 +939,8 @@ static void nes_cm_timer_tick(unsigned long pass)
 	}
 
 	if (settimer) {
-		if (!timer_pending(&cm_core->tcp_timer)) {
-			cm_core->tcp_timer.expires = nexttimeout;
-			add_timer(&cm_core->tcp_timer);
-		}
+		if (!timer_pending(&cm_core->tcp_timer))
+			mod_timer(&cm_core->tcp_timer, nexttimeout);
 	}
 }
 
@@ -1314,8 +1305,6 @@ static int mini_cm_del_listen(struct nes_cm_core *cm_core,
 static inline int mini_cm_accelerated(struct nes_cm_core *cm_core,
 				      struct nes_cm_node *cm_node)
 {
-	u32 was_timer_set;
-
 	cm_node->accelerated = 1;
 
 	if (cm_node->accept_pend) {
@@ -1325,11 +1314,8 @@ static inline int mini_cm_accelerated(struct nes_cm_core *cm_core,
 		BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
 	}
 
-	was_timer_set = timer_pending(&cm_core->tcp_timer);
-	if (!was_timer_set) {
-		cm_core->tcp_timer.expires = jiffies + NES_SHORT_TIME;
-		add_timer(&cm_core->tcp_timer);
-	}
+	if (!timer_pending(&cm_core->tcp_timer))
+		mod_timer(&cm_core->tcp_timer, (jiffies + NES_SHORT_TIME));
 
 	return 0;
 }