releases/3.4.16/infiniband-pass-rdma_cm-module-to-netlink_dump_start.patch

From 69713c42f7cc8b763375c9ce359e7596b9c5592c Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 4 Oct 2012 20:15:49 +0000
Subject: infiniband: pass rdma_cm module to netlink_dump_start


From: Gao feng <gaofeng@cn.fujitsu.com>

[ Upstream commit 809d5fc9bf6589276a12bd4fd611e4c7ff9940c3 ]

set netlink_dump_control.module to avoid panic.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/cma.c     |    3 ++-
 drivers/infiniband/core/netlink.c |    1 +
 include/rdma/rdma_netlink.h       |    1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3451,7 +3451,8 @@ out:
 }
 
 static const struct ibnl_client_cbs cma_cb_table[] = {
-	[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats },
+	[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats,
+				       .module = THIS_MODULE },
 };
 
 static int __init cma_init(void)
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -151,6 +151,7 @@ static int ibnl_rcv_msg(struct sk_buff *
 			{
 				struct netlink_dump_control c = {
 					.dump = client->cb_table[op].dump,
+					.module = client->cb_table[op].module,
 				};
 				return netlink_dump_start(nls, skb, nlh, &c);
 			}
--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -39,6 +39,7 @@ struct rdma_cm_id_stats {
 
 struct ibnl_client_cbs {
 	int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);
+	struct module *module;
 };
 
 int ibnl_init(void);