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Re: [Xen-devel] [PATCH hmm 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER
- To: Jason Gunthorpe <jgg@xxxxxxxx>, Felix.Kuehling@xxxxxxx, John Hubbard <jhubbard@xxxxxxxxxx>, Ralph Campbell <rcampbell@xxxxxxxxxx>, Jerome Glisse <jglisse@xxxxxxxxxx>
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Wed, 16 Oct 2019 07:11:03 +0200
- Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>, linux-rdma@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Jason Gunthorpe <jgg@xxxxxxxxxxxx>, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Ben Skeggs <bskeggs@xxxxxxxxxx>
- Delivery-date: Wed, 16 Oct 2019 05:11:10 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15.10.19 20:12, Jason Gunthorpe wrote:
From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
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@xxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Juergen
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