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authorSean Hefty <sean.hefty@intel.com>2011-12-06 21:15:18 +0000
committerRoland Dreier <roland@purestorage.com>2012-01-04 09:13:52 -0800
commit46ea5061c750fc6b088b9566234287115fb70f98 (patch)
treedb5ad08595bac4e37b508f697b950246bb87aba3
parentLinux 3.2-rc7 (diff)
downloadlinux-dev-46ea5061c750fc6b088b9566234287115fb70f98.tar.xz
linux-dev-46ea5061c750fc6b088b9566234287115fb70f98.zip
RDMA/cma: Fix endianness bugs
Fix endianness bugs reported by sparse in the RDMA core stack. Note that these are real bugs, but don't affect any existing code to the best of my knowledge. The mlid issue would only affect kernel users of rdma_join_multicast which have the rdma_cm attach/detach its QP. There are no current in tree users that do this. (rdma_join_multicast may be used called by user space applications, which does not have this issue.) And the pkey setting is simply returned as informational. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r--drivers/infiniband/core/cma.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index d0d4aa9f4802..fdd8ef8dad32 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1110,7 +1110,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
if (cma_any_addr((struct sockaddr *) &rt->addr.src_addr)) {
rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;
rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);
- ib_addr_set_pkey(&rt->addr.dev_addr, rt->path_rec[0].pkey);
+ ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));
} else {
ret = rdma_translate_ip((struct sockaddr *) &rt->addr.src_addr,
&rt->addr.dev_addr);
@@ -2926,7 +2926,7 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
mutex_lock(&id_priv->qp_mutex);
if (!status && id_priv->id.qp)
status = ib_attach_mcast(id_priv->id.qp, &multicast->rec.mgid,
- multicast->rec.mlid);
+ be16_to_cpu(multicast->rec.mlid));
mutex_unlock(&id_priv->qp_mutex);
memset(&event, 0, sizeof event);
@@ -3187,7 +3187,7 @@ void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr)
if (id->qp)
ib_detach_mcast(id->qp,
&mc->multicast.ib->rec.mgid,
- mc->multicast.ib->rec.mlid);
+ be16_to_cpu(mc->multicast.ib->rec.mlid));
if (rdma_node_get_transport(id_priv->cma_dev->device->node_type) == RDMA_TRANSPORT_IB) {
switch (rdma_port_get_link_layer(id->device, id->port_num)) {
case IB_LINK_LAYER_INFINIBAND: