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Hi, 016c98c6f virtio: unify config_changed handling introduced a warning in virtio_ccw which is fixed by the following patch. Regards, Sebastian --- virtio_ccw: remove unsued variable Fix this warning: drivers/s390/kvm/virtio_ccw.c: In function ?virtio_ccw_int_handler?: drivers/s390/kvm/virtio_ccw.c:891:24: warning: unused variable ?drv? [-Wunused-variable] struct virtio_driver *drv;