> -----Original Message-----
> From: Verma, Vishal L <vishal.l.verma@xxxxxxxxx>
> Sent: Thursday, August 09, 2018 1:43 AM
> To: Williams, Dan J <dan.j.williams@xxxxxxxxx>; ross.zwisler@xxxxxxxxxxxxxxx;
> oceanhehy@xxxxxxxxx; Jiang, Dave <dave.jiang@xxxxxxxxx>; lenb@xxxxxxxxxx;
> rjw@xxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-nvdimm@xxxxxxxxxxxx; linux-
> acpi@xxxxxxxxxxxxxxx; Ocean HY1 He <hehy1@xxxxxxxxxx>
> Subject: [External] Re: [PATCH] ACPI: nfit: check dcr immediately following its
> assignment codes
>
>
> On Wed, 2018-08-08 at 10:50 -0400, Ocean He wrote:
> > From: Ocean He <hehy1@xxxxxxxxxx>
> >
> > In commit 6697b2cf69d43632 ("nfit: fix multi-interface dimm handling,
> > acpi6.1 compatibility"), the check codes of dcr were just following its
> > assignment codes. But they were separated by commit ad9ac5e1957531a8
> > ("nfit: always associate flush hints").
> >
> > Just change the check codes back to original position, without function
> > change.
> >
> > Signed-off-by: Ocean He <hehy1@xxxxxxxxxx>
> > ---
> > drivers/acpi/nfit/core.c | 12 ++++++------
> > 1 file changed, 6 insertions(+), 6 deletions(-)
>
> This seems like unnecessary churn. Does it cause any problems in
> practice?
>
The original codes do not cause any problems.
Ocean.
> >
> > diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> > index 7c47900..c9e4c9a 100644
> > --- a/drivers/acpi/nfit/core.c
> > +++ b/drivers/acpi/nfit/core.c
> > @@ -1078,6 +1078,12 @@ static int __nfit_mem_init(struct acpi_nfit_desc
> *acpi_desc,
> > break;
> > }
> >
> > + if (dcr && !nfit_mem->dcr) {
> > + dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
> > + spa->range_index, dcr);
> > + return -ENODEV;
> > + }
> > +
> > list_for_each_entry(nfit_flush, &acpi_desc->flushes, list) {
> > struct acpi_nfit_flush_address *flush;
> > u16 i;
> > @@ -1101,12 +1107,6 @@ static int __nfit_mem_init(struct acpi_nfit_desc
> *acpi_desc,
> > break;
> > }
> >
> > - if (dcr && !nfit_mem->dcr) {
> > - dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
> > - spa->range_index, dcr);
> > - return -ENODEV;
> > - }
> > -
> > if (type == NFIT_SPA_DCR) {
> > struct nfit_idt *nfit_idt;
> > u16 idt_idx;
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