Re: [PATCH v2 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER

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On 01.11.19 19:26, Jason Gunthorpe wrote:
On Mon, Oct 28, 2019 at 05:10:25PM -0300, 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>
---
  drivers/xen/Kconfig | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

Juergen/Oleksandr/Xen Maintainers:

Would you take this patch through a xen related tree? The only reason
I had in this series is to make it easier to compile-test the gntdev
changes.

Yes, I can take it for 5.5.


Juergen



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