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Date:   Sun, 13 Sep 2020 09:59:56 -0700
From:   Dmitry Torokhov <dmitry.torokhov@gmail.com>
To:     Michael Kelley <mikelley@microsoft.com>
Cc:     Boqun Feng <boqun.feng@gmail.com>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        "linux-input@vger.kernel.org" <linux-input@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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        "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        KY Srinivasan <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>, Jiri Kosina <jikos@kernel.org>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
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        "arnd@arndb.de" <arnd@arndb.de>,
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        "Mark.Rutland@arm.com" <Mark.Rutland@arm.com>,
        "maz@kernel.org" <maz@kernel.org>
Subject: Re: [PATCH v3 08/11] Input: hyperv-keyboard: Make ringbuffer at
 least take two pages
Message-ID: <20200913165956.GG1665100@dtor-ws>
References: <20200910143455.109293-1-boqun.feng@gmail.com>
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On Sat, Sep 12, 2020 at 07:37:23PM +0000, Michael Kelley wrote:
> From: Boqun Feng <boqun.feng@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@gmail.com>
> > ---
> >  drivers/input/serio/hyperv-keyboard.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> 
> Reviewed-by: Michael Kelley <mikelley@microsoft.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Please feel free to merge with the rest of the patches through whatever
tree they will go in.

Thanks.

-- 
Dmitry