xen/xenbus: move to_xenbus_device() to use container_of_const()

The driver core is changing to pass some pointers as const, so move
to_xenbus_device() to use container_of_const() to handle this change.

to_xenbus_device() now properly keeps the const-ness of the pointer passed
into it, while as before it could be lost.

Cc: Stefano Stabellini <[email protected]>
Cc: Oleksandr Tyshchenko <[email protected]>
Cc: [email protected]
Acked-by: Juergen Gross <[email protected]>
Acked-by: Hans de Goede <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions