> diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
> index b6a33b3..2d60130 100644
> --- a/drivers/infiniband/core/cma.c
> +++ b/drivers/infiniband/core/cma.c
> @@ -359,6 +359,10 @@ static int cma_acquire_dev(struct rdma_id_private
> *id_priv)
> enum rdma_link_layer
From: Moni Shoua
This patch fixes a kernel crash in cma_set_qkey().
When link layer is ETHERNET it is wrong to use IPoIB port space since no IPoIB
interface is available. Specifically, setting qkey when port space is
RDMA_PS_IPOIB, requires mgid calculation and SA query which is illegal over
Eth
