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path: root/drivers/infiniband/core/cma.c
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Diffstat (limited to 'drivers/infiniband/core/cma.c')
-rw-r--r--drivers/infiniband/core/cma.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 172cc16bd231..26de0dab60bb 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1611,6 +1611,8 @@ static struct rdma_id_private *cma_find_listener(
{
struct rdma_id_private *id_priv, *id_priv_dev;
+ lockdep_assert_held(&lock);
+
if (!bind_list)
return ERR_PTR(-EINVAL);
@@ -1657,6 +1659,7 @@ cma_ib_id_from_event(struct ib_cm_id *cm_id,
}
}
+ mutex_lock(&lock);
/*
* Net namespace might be getting deleted while route lookup,
* cm_id lookup is in progress. Therefore, perform netdevice
@@ -1698,6 +1701,7 @@ cma_ib_id_from_event(struct ib_cm_id *cm_id,
id_priv = cma_find_listener(bind_list, cm_id, ib_event, req, *net_dev);
err:
rcu_read_unlock();
+ mutex_unlock(&lock);
if (IS_ERR(id_priv) && *net_dev) {
dev_put(*net_dev);
*net_dev = NULL;
@@ -2479,6 +2483,8 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
struct net *net = id_priv->id.route.addr.dev_addr.net;
int ret;
+ lockdep_assert_held(&lock);
+
if (cma_family(id_priv) == AF_IB && !rdma_cap_ib_cm(cma_dev->device, 1))
return;
@@ -3326,6 +3332,8 @@ static void cma_bind_port(struct rdma_bind_list *bind_list,
u64 sid, mask;
__be16 port;
+ lockdep_assert_held(&lock);
+
addr = cma_src_addr(id_priv);
port = htons(bind_list->port);
@@ -3354,6 +3362,8 @@ static int cma_alloc_port(enum rdma_ucm_port_space ps,
struct rdma_bind_list *bind_list;
int ret;
+ lockdep_assert_held(&lock);
+
bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
if (!bind_list)
return -ENOMEM;
@@ -3380,6 +3390,8 @@ static int cma_port_is_unique(struct rdma_bind_list *bind_list,
struct sockaddr *saddr = cma_src_addr(id_priv);
__be16 dport = cma_port(daddr);
+ lockdep_assert_held(&lock);
+
hlist_for_each_entry(cur_id, &bind_list->owners, node) {
struct sockaddr *cur_daddr = cma_dst_addr(cur_id);
struct sockaddr *cur_saddr = cma_src_addr(cur_id);
@@ -3419,6 +3431,8 @@ static int cma_alloc_any_port(enum rdma_ucm_port_space ps,
unsigned int rover;
struct net *net = id_priv->id.route.addr.dev_addr.net;
+ lockdep_assert_held(&lock);
+
inet_get_local_port_range(net, &low, &high);
remaining = (high - low) + 1;
rover = prandom_u32() % remaining + low;
@@ -3466,6 +3480,8 @@ static int cma_check_port(struct rdma_bind_list *bind_list,
struct rdma_id_private *cur_id;
struct sockaddr *addr, *cur_addr;
+ lockdep_assert_held(&lock);
+
addr = cma_src_addr(id_priv);
hlist_for_each_entry(cur_id, &bind_list->owners, node) {
if (id_priv == cur_id)
@@ -3496,6 +3512,8 @@ static int cma_use_port(enum rdma_ucm_port_space ps,
unsigned short snum;
int ret;
+ lockdep_assert_held(&lock);
+
snum = ntohs(cma_port(cma_src_addr(id_priv)));
if (snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE))
return -EACCES;