[PATCH 3.14 73/96] IB/core: When marshaling ucma path from user-space, clear unused fields
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2015-03-16 14:48:03
Also in:
lkml
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ilya Nelkenbaum <redacted>
commit c2be9dc0e0fa59cc43c2c7084fc42b430809a0fe upstream.
When marshaling a user path to the kernel struct ib_sa_path, we need
to zero smac and dmac and set the vlan id to the "no vlan" value.
This is to ensure that Ethernet attributes are not used with
InfiniBand QPs.
Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: Ilya Nelkenbaum <redacted>
Signed-off-by: Or Gerlitz <redacted>
Signed-off-by: Roland Dreier <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/core/ucma.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c@@ -1124,6 +1124,9 @@ static int ucma_set_ib_path(struct ucma_ if (!optlen) return -EINVAL; + memset(&sa_path, 0, sizeof(sa_path)); + sa_path.vlan_id = 0xffff; + ib_sa_unpack_path(path_data->path_rec, &sa_path); ret = rdma_set_ib_paths(ctx->cm_id, &sa_path, 1); if (ret)