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Subject: Re: [PATCH v3 -next] vdpa: mlx5: change Kconfig depends to fix build
 errors
To:     Eli Cohen <elic@nvidia.com>, "Michael S. Tsirkin" <mst@redhat.com>
Cc:     Leon Romanovsky <leonro@nvidia.com>,
        virtualization@lists.linux-foundation.org,
        LKML <linux-kernel@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        Jason Wang <jasowang@redhat.com>,
        Saeed Mahameed <saeedm@nvidia.com>
References: <73f7e48b-8d16-6b20-07d3-41dee0e3d3bd@infradead.org>
 <20200918082245.GP869610@unreal>
 <20200924052932-mutt-send-email-mst@kernel.org>
 <20200924102413.GD170403@mtl-vdi-166.wap.labs.mlnx>
From:   Randy Dunlap <rdunlap@infradead.org>
Message-ID: <079c831e-214d-22c1-028e-05d84e3b7f04@infradead.org>
Date:   Thu, 24 Sep 2020 08:47:05 -0700
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On 9/24/20 3:24 AM, Eli Cohen wrote:
> On Thu, Sep 24, 2020 at 05:30:55AM -0400, Michael S. Tsirkin wrote:
>>>> --- 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_IOTLB && MLX5_CORE
>>>>  	default n
>>>
>>> While we are here, can anyone who apply this patch delete the "default n" line?
>>> It is by default "n".
> 
> I can do that
> 
>>>
>>> Thanks
>>
>> Hmm other drivers select VHOST_IOTLB, why not do the same?

v1 used select, but Saeed requested use of depends instead because
select can cause problems.

> I can't see another driver doing that. Perhaps I can set dependency on
> VHOST which by itself depends on VHOST_IOTLB?
>>
>>
>>>>  	help
>>>>  	  Support library for Mellanox VDPA drivers. Provides code that is
>>>>
>>


-- 
~Randy