Re: [PATCH] Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF

[Juergen Gross <jgross@xxxxxxxx>]

On 30.01.22 19:35, Demi Marie Obenour wrote:
> The current implementation of gntdev guarantees that the first call to
> IOCTL_GNTDEV_MAP_GRANT_REF will set @index to 0.  This is required to
> use gntdev for Wayland, which is a future desire of Qubes OS.
> Additionally, requesting zero grants results in an error, but this was
> not documented either.  Document both of these.
Please add a "Signed-off-by:" tag to your commit message.

See Documentation/process/submitting-patches.rst in the kernel source
tree, look for "Sign your work - the Developer's Certificate of Origin".


Juergen

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