Re: [RFC PATCH 2/2] net/mlx5: Kconfig: Use "uses" instead of "imply"

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On Fri, Apr 17, 2020 at 3:12 AM Saeed Mahameed <saeedm@xxxxxxxxxxxx> wrote:

> @@ -7,10 +7,10 @@ config MLX5_CORE
>         tristate "Mellanox 5th generation network adapters (ConnectX series) core driver"
>         depends on PCI
>         select NET_DEVLINK
> -       imply PTP_1588_CLOCK
> -       imply VXLAN
> -       imply MLXFW
> -       imply PCI_HYPERV_INTERFACE
> +       uses PTP_1588_CLOCK
> +       uses VXLAN
> +       uses MLXFW
> +       uses PCI_HYPERV_INTERFACE

I have confirmed in the meantime that changing the PCI_HYPERV_INTERFACE
dependency is indeed required, in addition to PTP_1588_CLOCK and VXLAN
that the randconfig tests found earlier:

x86_64-linux-ld: drivers/net/ethernet/mellanox/mlx5/core/main.o: in
function `mlx5_unload':
main.c:(.text+0x325): undefined reference to `mlx5_hv_vhca_cleanup'

I also checked that there is no link failure with MLX5_CORE=y and MLXFW=m,
but only because of an IS_REACHABLE() check in mlxfw/mlxfw.h.
I suppose that should be changed back to IS_ENABLED() now along with
the Kconfig check.

      Arnd



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