Re: [PATCH v8 00/10] nvdimm: Add an IOCTL pass thru for DSM calls

The NVDIMM code in the kernel supports an IOCTL interface to user space based upon the Intel Example DSM:

Changes in version 8: --------------------- 1. augmented family_to_uuid() to return uuid. This to address bug in prior version where acpi_nfit_ctl wasn't updating uuid with value associated with command family. 2. patch 0006 changes name of nvdimm_bus_descriptor.dsm_mask to .cmd_mask 3. patch 0008 adds field cmd_ioctl if kernel supports full ioctl as with Intel example dsm. 4. patch 0009 make determination if kernel supports the full cmd_ioctl for that dsm. Updates the commands_show function to invert the sense of display of commands. All dsm support pass-thru, only the Intel Example DSM supports the full ioctl interface. 5. patch 0010 adds explicit ioctl interface to return command mask. This was done in part to avoid "unknown" command in sysfs.