From: Sean Hefty <sean.hefty@intel.com>
Date: Wed, 29 May 2013 17:09:08 +0000 (-0700)
Subject: RDMA/cma: Allow enabling reuseaddr in any state
X-Git-Tag: next-20130628~70^2~27
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c8dea2f9f078395ebac7c92aeb919f02ff3fca88;p=karo-tx-linux.git

RDMA/cma: Allow enabling reuseaddr in any state

The rdma_cm only allows setting reuseaddr if the corresponding
rdma_cm_id is in the idle state.  Allow setting this value in other
states.  This brings the behavior more inline with sockets.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 34fbc2f60a09..fde428bd2dad 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2097,7 +2097,7 @@ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse)
 
 	id_priv = container_of(id, struct rdma_id_private, id);
 	spin_lock_irqsave(&id_priv->lock, flags);
-	if (id_priv->state == RDMA_CM_IDLE) {
+	if (reuse || id_priv->state == RDMA_CM_IDLE) {
 		id_priv->reuseaddr = reuse;
 		ret = 0;
 	} else {