[PATCH 02/16] virtio: unify config_changed handling

Cornelia Huck
2014-10-06T09:20:16Z

On Sun, 5 Oct 2014 19:06:52 +0300
"Michael S. Tsirkin" <mst at redhat.com> wrote:

> Replace duplicated code in all transports with a single wrapper in
> virtio.c.
>
> The only functional change is in virtio_mmio.c: if a buggy device sends
> us an interrupt before driver is set, we previously returned IRQ_NONE,
> now we return IRQ_HANDLED.
>
> As this must not happen in practice, this does not look like a big deal.
>
> See also commit 3fff0179e33cd7d0a688dab65700c46ad089e934
> 	virtio-pci: do not oops on config change if driver not loaded.
> for the original motivation behind the driver check.
>
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
> ---
>  include/linux/virtio.h             |  2 ++
>  drivers/misc/mic/card/mic_virtio.c |  6 +-----
>  drivers/s390/kvm/kvm_virtio.c      |  9 +--------
>  drivers/s390/kvm/virtio_ccw.c      |  6 +-----
>  drivers/virtio/virtio.c            | 10 ++++++++++
>  drivers/virtio/virtio_mmio.c       |  7 ++-----
>  drivers/virtio/virtio_pci.c        |  6 +-----
>  7 files changed, 18 insertions(+), 28 deletions(-)

Reviewed-by: Cornelia Huck <cornelia.huck at de.ibm.com>