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Subject[PATCH 174/241] infiniband: pass rdma_cm module to netlink_dump_start
Date
3.5.7.2 -stable review patch.  If anyone has any objections, please let me know.

------------------

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

commit 809d5fc9bf6589276a12bd4fd611e4c7ff9940c3 upstream.

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: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
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(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 2e826f9..d57ff70 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3457,7 +3457,8 @@ 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)
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index e497dfb..fb99702 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -152,6 +152,7 @@ static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
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);
}
diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h
index 3c5363a..bd3d8b2 100644
--- 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);
--
1.7.9.5


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