[Xen-devel] [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER

[Oleksandr Andrushchenko]

On 10/21/19 10:12 PM, Jason Gunthorpe wrote:
> On Wed, Oct 16, 2019 at 06:35:15AM +0000, Oleksandr Andrushchenko wrote:
>> On 10/16/19 8:11 AM, Jürgen Groß wrote:
>>> On 15.10.19 20:12, Jason Gunthorpe wrote:
>>>> From: Jason Gunthorpe <jgg at mellanox.com>
>>>>
>>>> DMA_SHARED_BUFFER can not be enabled by the user (it represents a
>>>> library
>>>> set in the kernel). The kconfig convention is to use select for such
>>>> symbols so they are turned on implicitly when the user enables a kconfig
>>>> that needs them.
>>>>
>>>> Otherwise the XEN_GNTDEV_DMABUF kconfig is overly difficult to enable.
>>>>
>>>> Fixes: 932d6562179e ("xen/gntdev: Add initial support for dma-buf UAPI")
>>>> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko at epam.com>
>>>> Cc: Boris Ostrovsky <boris.ostrovsky at oracle.com>
>>>> Cc: xen-devel at lists.xenproject.org
>>>> Cc: Juergen Gross <jgross at suse.com>
>>>> Cc: Stefano Stabellini <sstabellini at kernel.org>
>>>> Signed-off-by: Jason Gunthorpe <jgg at mellanox.com>
>>> Reviewed-by: Juergen Gross <jgross at suse.com>
>>>
>> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko at epam.com>
> Thanks Oleksandr and Juergen, can you also give me some advice on how
> to progress the more complex patch:
>
> https://patchwork.kernel.org/patch/11191369/
>
> Is this gntdev stuff still in-use? I struggled a bit to understand
> what it is doing, but I think I made a reasonable guess?
I think Jurgen and Boris could help here
> Jason
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