Re: [PATCH 05/11] hw/virtio/vhost-user:Remove dead assignment in scrub_shadow_regions()

[Raphael Norwitz]

On Thu, Aug 13, 2020 at 2:39 AM Chen Qun <kuhn.chenqun@huawei.com> wrote:
>
> Clang static code analyzer show warning:
> hw/virtio/vhost-user.c:606:9: warning: Value stored to 'mr' is never read
>         mr = vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);
>         ^    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
> ---
>  hw/virtio/vhost-user.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
> index d7e2423762..9c5b4f7fbc 100644
> --- a/hw/virtio/vhost-user.c
> +++ b/hw/virtio/vhost-user.c
> @@ -603,7 +603,7 @@ static void scrub_shadow_regions(struct vhost_dev *dev,
>       */
>      for (i = 0; i < dev->mem->nregions; i++) {
>          reg = &dev->mem->regions[i];
> -        mr = vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);

Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>

> +        vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);
>          if (fd > 0) {
>              ++fd_num;
>          }
> --
> 2.23.0
>
>