Hi All, PCI based devices can be shutdown from sysfs interface echo "unbind" > /sys/bus/pci/drivers/cxgb4/unbind In case device has active Transformation(tfm), Drivers cannot un-register the Algorithms because alg->cra_refcnt will be non zero. Can driver use the "CRYPTO_ALG_DEAD" flag to mark it un-available so that crypto_alg_lookup does not allocate new tfm using dead algo. Regards Harsh Jain
