infiniband: mlx5: fix build errors when INFINIBAND_USER_ACCESS=m

Fix build errors when INFINIBAND_USER_ACCESS=m and MLX5_INFINIBAND=y.
The build error occurs when the mlx5 driver code attempts to use
USER_ACCESS interfaces, which are built as a loadable module.

Fixes these build errors:

drivers/infiniband/hw/mlx5/main.o: In function `populate_specs_root':
../drivers/infiniband/hw/mlx5/main.c:4982: undefined reference to `uverbs_default_get_objects'
../drivers/infiniband/hw/mlx5/main.c:4994: undefined reference to `uverbs_alloc_spec_tree'
drivers/infiniband/hw/mlx5/main.o: In function `depopulate_specs_root':
../drivers/infiniband/hw/mlx5/main.c:5001: undefined reference to `uverbs_free_spec_tree'

Build-tested with multiple config combinations.

Fixes: 8c84660bb437 ("IB/mlx5: Initialize the parsing tree root without the help of uverbs")
Cc: stable@vger.kernel.org # reported against 4.16
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/mlx5/Kconfig b/drivers/infiniband/hw/mlx5/Kconfig
index bce263b928211c3e2126b04f6ef00fbc41b33d03..fb4d77be019b77797b5bf281dfdd63a447fd065f 100644 (file)
--- a/drivers/infiniband/hw/mlx5/Kconfig
+++ b/drivers/infiniband/hw/mlx5/Kconfig
@@ -1,6 +1,7 @@
 config MLX5_INFINIBAND
        tristate "Mellanox Connect-IB HCA support"
        depends on NETDEVICES && ETHERNET && PCI && MLX5_CORE
+       depends on INFINIBAND_USER_ACCESS || INFINIBAND_USER_ACCESS=n
        ---help---
          This driver provides low-level InfiniBand support for
          Mellanox Connect-IB PCI Express host channel adapters (HCAs).