[PATCH RE-RESEND V2 for-next 1/5] IB/core: When marshaling ucma path from user-space, clear unused fields

Or Gerlitz
2015-02-05T11:53:48Z

From: Ilya Nelkenbaum <ilyan-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

When marsheling a user path to the kernel struct ib_sa_path, need
to zero smac, 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 <ilyan-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/core/ucma.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 56a4b7c..45d67e9 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1124,6 +1124,9 @@ static int ucma_set_ib_path(struct ucma_context *ctx,
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)
--
1.7.1