[PATCH v3 08/11] Input: hyperv-keyboard: Make ringbuffer at least take two pages

[Michael Kelley]

From: Boqun Feng <boqun.feng at gmail.com> Sent: Thursday, September 10, 2020 7:35 AM

> 
> When PAGE_SIZE > HV_HYP_PAGE_SIZE, we need the ringbuffer size to be at
> least 2 * PAGE_SIZE: one page for the header and at least one page of
> the data part (because of the alignment requirement for double mapping).
> 
> So make sure the ringbuffer sizes to be at least 2 * PAGE_SIZE when
> using vmbus_open() to establish the vmbus connection.
> 
> Signed-off-by: Boqun Feng <boqun.feng at gmail.com>
> ---
>  drivers/input/serio/hyperv-keyboard.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Michael Kelley <mikelley at microsoft.com>