linux-kernel - Re: [PATCH] vfio/pci: Revert nvlink removal uAPI breakage

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Message-ID: <20210504180636.6251eaf1.cohuck@redhat.com>
Date:   Tue, 4 May 2021 18:06:36 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Alex Williamson <alex.williamson@...hat.com>
Cc:     kvm@...r.kernel.org, groug@...d.org, hch@....de,
        gregkh@...uxfoundation.org, daniel@...ll.ch,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        qemu-devel@...gnu.org, linuxppc-dev@...ts.ozlabs.org,
        qemu-ppc@...gnu.org
Subject: Re: [PATCH] vfio/pci: Revert nvlink removal uAPI breakage

On Tue, 04 May 2021 09:52:02 -0600
Alex Williamson <alex.williamson@...hat.com> wrote:

> Revert the uAPI changes from the below commit with notice that these
> regions and capabilities are no longer provided.
> 
> Fixes: b392a1989170 ("vfio/pci: remove vfio_pci_nvlink2")
> Reported-by: Greg Kurz <groug@...d.org>
> Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
> ---
> 
> Greg (Kurz), please double check this resolves the issue.  Thanks!
> 
>  include/uapi/linux/vfio.h |   46 +++++++++++++++++++++++++++++++++++++++++----
>  1 file changed, 42 insertions(+), 4 deletions(-)

I had already hacked up a QEMU patch that moved the definitions into
local headers, but this one is less of a hassle. (Code compiles fine
after doing a headers update.)

Reviewed-by: Cornelia Huck <cohuck@...hat.com>