On Mon, Aug 8, 2016 at 12:10 PM, Ross Zwisler
On Tue, Aug 02, 2016 at 12:26:53PM -0600, Ross Zwisler wrote:
> The "NVDIMM Block Window Driver Writer's Guide":
> defines the layout of the block window status register. For the July 2016
> version of the spec linked to above, this happens in Figure 4 on page 26.
> The only bits defined in this spec are bits 31, 5, 4, 2, 1 and 0. The rest
> of the bits in the status register are reserved, and there is a warning
> following the diagram that says:
> Note: The driver cannot assume the value of the RESERVED bits in the
> status register are zero. These reserved bits need to be masked off, and
> the driver must avoid checking the state of those bits.
> This change ensures that for hardware implementations that set these
> reserved bits in the status register, the driver won't incorrectly fail the
> block I/Os.
> Signed-off-by: Ross Zwisler <ross.zwisler(a)linux.intel.com>
> Reviewed-by: Lee, Chun-Yi <jlee(a)suse.com>
> Cc: Dan Williams <dan.j.williams(a)intel.com>
> Cc: stable(a)vger.kernel.org # v4.2+
Ping on this patch - through which tree should we merge this for v4.8-rc2?
Dan's nvdimm tree?
It's getting 0-day coverage on my libnvdimm-pending branch and will go
to Linus at the end of the week.