netdev - Re: [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition

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Date:   Mon, 03 Sep 2018 21:23:43 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     mst@...hat.com
Cc:     jasowang@...hat.com, glebfm@...linux.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request
 definition

From: "Michael S. Tsirkin" <mst@...hat.com>
Date: Mon, 3 Sep 2018 23:11:11 -0400

> On Tue, Sep 04, 2018 at 11:08:40AM +0800, Jason Wang wrote:
>> 
>> 
>> On 2018年09月04日 10:22, Michael S. Tsirkin wrote:
>> > On Mon, Sep 03, 2018 at 08:59:13PM +0300, Gleb Fotengauer-Malinovskiy wrote:
>> > > The _IOC_READ flag fits this ioctl request more because this request
>> > > actually only writes to, but doesn't read from userspace.
>> > > See NOTEs in include/uapi/asm-generic/ioctl.h for more information.
>> > > 
>> > > Fixes: 429711aec282 ("vhost: switch to use new message format")
>> > > Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@...linux.org>
>> > Hmm it does make sense, and it's not too late to fix this up.
>> > Jason, what's your take on this? Was _IOW intentional?
>> 
>> My bad, not intentional. And I agree that fixing this is not too late.
>> 
>> So
>> 
>> Acked-by: Jason Wang <jasowang@...hat.com>
> 
> 
> OK then
> 
> Acked-by: Michael S. Tsirkin <mst@...hat.com>

Applied, thanks everyone.