Re: [RFC PATCH 01/27] virtio-snd: Add virtio sound header file

[Gerd Hoffmann]

On Thu, Apr 29, 2021 at 05:34:19PM +0530, Shreyansh Chouhan wrote:
> Added device configuration and common definitions to the header
> file.
> 
> Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh2702@gmail.com>
> ---
>  include/hw/virtio/virtio-snd.h | 97 ++++++++++++++++++++++++++++++++++

This is the place for the data structures used by qemu internally.

The structs and #defines for the guest/host protocol should go to
include/standard-headers/linux/ instead.

There is a script (scripts/update-linux-headers.sh) to sync the files
with the linux source tree content.  As far I know the linux guest
driver is scheduled for merge in the 5.13 merge window, so once 5.13-rc1
is out of the door this should start working.

Syncing against a development tree is possible too as temporary stopgap,
but some extra care is needed then to avoid unwanted changes to
non-virtio-sound files slipping in.

Possibly it makes sense to also sync other linux header files that way
(for hda jacks maybe?).  We also import the input headers to get all the
KEY_* #defines for example.

take care,
  Gerd