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Re: [Xen-devel] [PATCH v2 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER
- To: Jason Gunthorpe <jgg@xxxxxxxx>, linux-mm@xxxxxxxxx, Jerome Glisse <jglisse@xxxxxxxxxx>, Ralph Campbell <rcampbell@xxxxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, Felix.Kuehling@xxxxxxx
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Thu, 7 Nov 2019 10:39:06 +0100
- Cc: David Zhou <David1.Zhou@xxxxxxx>, Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>, linux-rdma@xxxxxxxxxxxxxxx, nouveau@xxxxxxxxxxxxxxxxxxxxx, Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxxxx>, dri-devel@xxxxxxxxxxxxxxxxxxxxx, Alex Deucher <alexander.deucher@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Petr Cvek <petrcvekcz@xxxxxxxxx>, Christian König <christian.koenig@xxxxxxx>, Ben Skeggs <bskeggs@xxxxxxxxxx>
- Delivery-date: Thu, 07 Nov 2019 09:39:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 28.10.19 21:10, 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>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Applied to xen/tip.git for-linus-5.5a
Juergen
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