Hi all, this patch adds TCG Opal support to the scsi disk driver. As far as I know only SATA disks actually support OPAL, and as Martin fears RSOC-related regressions the support is conditional in a flag in struct scsi_device, which so far only libata sets.
Because of that we should merge the patch through the libata tree with ACKs from the SCSI side. Changes from the previous version: - add the new security_supported flag - add a call to opal_unlock_from_suspend
