On Sun, 30 Nov 2014 17:12:47 +0200
"Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote:
> Note: for consistency, and to avoid sparse errors,
> convert all fields, even those no longer in use
> for virtio v1.0.
>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> ---
> include/linux/virtio_scsi.h | 32 +++++++++++++++-------------
> drivers/scsi/virtio_scsi.c | 51 ++++++++++++++++++++++++++++-----------------
> 2 files changed, 49 insertions(+), 34 deletions(-)
>
> @@ -196,10 +196,13 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf)
> break;
> }
>
> - WARN_ON(resp->sense_len > VIRTIO_SCSI_SENSE_SIZE);
> + WARN_ON(virtio32_to_cpu(vscsi->vdev, resp->sense_len) >
> + VIRTIO_SCSI_SENSE_SIZE);
Introduce a local variable for this? Might make this statement and the
min_t statement below easier to read.
> if (sc->sense_buffer) {
> memcpy(sc->sense_buffer, resp->sense,
> - min_t(u32, resp->sense_len, VIRTIO_SCSI_SENSE_SIZE));
> + min_t(u32,
> + virtio32_to_cpu(vscsi->vdev, resp->sense_len),
> + VIRTIO_SCSI_SENSE_SIZE));
> if (resp->sense_len)
> set_driver_byte(sc, DRIVER_SENSE);
> }
Otherwise looks good to me.
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