[PATCH rdma-next v1 2/5] RDMA/core: Don't depend device ODP capabilities on kconfig option

[Leon Romanovsky]

From: Leon Romanovsky <leo...@mellanox.com>

Device capability bits are exposing what specific device supports from
HW perspective. Those bits are not dependent on kernel configurations
and RDMA/core should ensure that proper interfaces to users will be
disabled if CONFIG_INFINIBAND_ON_DEMAND_PAGING is not set.

Fixes: f4056bfd8ccf ("IB/core: Add on demand paging caps to 
ib_uverbs_ex_query_device")
Fixes: 8cdd312cfed7 ("IB/mlx5: Implement the ODP capability query verb")
Signed-off-by: Leon Romanovsky <leo...@mellanox.com>
---
 drivers/infiniband/core/uverbs_cmd.c |  2 --
 drivers/infiniband/hw/mlx5/main.c    | 10 +++++-----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c 
b/drivers/infiniband/core/uverbs_cmd.c
index 6b12cc5f97b2..549d9eedf62e 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3609,7 +3609,6 @@ static int ib_uverbs_ex_query_device(struct 
uverbs_attr_bundle *attrs)
 
        copy_query_dev_fields(ucontext, &resp.base, &attr);
 
-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
        resp.odp_caps.general_caps = attr.odp_caps.general_caps;
        resp.odp_caps.per_transport_caps.rc_odp_caps =
                attr.odp_caps.per_transport_caps.rc_odp_caps;
@@ -3617,7 +3616,6 @@ static int ib_uverbs_ex_query_device(struct 
uverbs_attr_bundle *attrs)
                attr.odp_caps.per_transport_caps.uc_odp_caps;
        resp.odp_caps.per_transport_caps.ud_odp_caps =
                attr.odp_caps.per_transport_caps.ud_odp_caps;
-#endif
 
        resp.timestamp_mask = attr.timestamp_mask;
        resp.hca_core_clock = attr.hca_core_clock;
diff --git a/drivers/infiniband/hw/mlx5/main.c 
b/drivers/infiniband/hw/mlx5/main.c
index d84b21c95ae5..c98343e50a00 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -923,11 +923,11 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
        props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz);
        props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL;
 
-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
-       if (MLX5_CAP_GEN(mdev, pg))
-               props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
-       props->odp_caps = dev->odp_caps;
-#endif
+       if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
+               if (MLX5_CAP_GEN(mdev, pg))
+                       props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
+               props->odp_caps = dev->odp_caps;
+       }
 
        if (MLX5_CAP_GEN(mdev, cd))
                props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL;
-- 
2.19.1