On Fri, Jun 30, 2017 at 9:09 AM, Jerry Hoemann <jerry.hoem...@hpe.com> wrote: > Have module parameter override_dsm_mask override the dsm_mask for > root calls like it does for non-root dsm calls. > > Signed-off-by: Jerry Hoemann <jerry.hoem...@hpe.com> > --- > drivers/acpi/nfit/core.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c > index 4e24d69..87acaf2 100644 > --- a/drivers/acpi/nfit/core.c > +++ b/drivers/acpi/nfit/core.c > @@ -1641,6 +1641,8 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc > *acpi_desc) > set_bit(ND_CMD_CALL, &nd_desc->cmd_mask); > > dsm_mask = 0x3bf; > + if (override_dsm_mask) > + dsm_mask = override_dsm_mask; > for_each_set_bit(i, &dsm_mask, BITS_PER_LONG) > if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i)) > set_bit(i, &nd_desc->bus_dsm_mask);
Another reason not to apply this is to take a look at what happened with the introduction of _LSI, _LSR, and _LSW. We should not expect that _DSM will keep being used for future NVDIMM root bus methods.
