[PATCH v2 -next] vdpa: mlx5: change Kconfig depends to fix build errors

From: Randy Dunlap
Date: Thu Sep 17 2020 - 15:58:05 EST

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

drivers/vdpa/mlx5/ uses vhost_iotlb*() interfaces, so add a dependency
on VHOST to eliminate build errors.

ld: drivers/vdpa/mlx5/core/mr.o: in function `add_direct_chain':
mr.c:(.text+0x106): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x1cf): undefined reference to `vhost_iotlb_itree_next'
ld: mr.c:(.text+0x30d): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x3e8): undefined reference to `vhost_iotlb_itree_next'
ld: drivers/vdpa/mlx5/core/mr.o: in function `_mlx5_vdpa_create_mr':
mr.c:(.text+0x908): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x9e6): undefined reference to `vhost_iotlb_itree_next'
ld: drivers/vdpa/mlx5/core/mr.o: in function `mlx5_vdpa_handle_set_map':
mr.c:(.text+0xf1d): undefined reference to `vhost_iotlb_itree_first'

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: Saeed Mahameed <saeedm@xxxxxxxxxx>
Cc: Leon Romanovsky <leonro@xxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
v2: change from select to depends (Saeed)

drivers/vdpa/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20200917.orig/drivers/vdpa/Kconfig
+++ linux-next-20200917/drivers/vdpa/Kconfig
@@ -31,7 +31,7 @@ config IFCVF

config MLX5_VDPA
bool "MLX5 VDPA support library for ConnectX devices"
- depends on MLX5_CORE
+ depends on VHOST && MLX5_CORE
default n
Support library for Mellanox VDPA drivers. Provides code that is