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SubjectRe: [PATCH] ACPI/PPTT: Simplify leaf node detection.
Date
On Monday, March 4, 2019 11:02:08 AM CET Sudeep Holla wrote:
> On Fri, Mar 01, 2019 at 12:52:21PM -0600, Jeremy Linton wrote:
> > ACPI 6.3 bumps the PPTT table revision and adds a LEAF_NODE flag.
> > This allows us to avoid a second pass through the table to assure
> > that the node in question is a leaf.
> >
>
> Reviewed-by:Sudeep Holla <sudeep.holla@arm.com>
>
> --
> Regards,
> Sudeep
>
> > Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
> > ---
> > drivers/acpi/pptt.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c
> > index ad31c50de3be..065c4fc245d1 100644
> > --- a/drivers/acpi/pptt.c
> > +++ b/drivers/acpi/pptt.c
> > @@ -209,6 +209,9 @@ static int acpi_pptt_leaf_node(struct acpi_table_header *table_hdr,
> > struct acpi_pptt_processor *cpu_node;
> > u32 proc_sz;
> >
> > + if (table_hdr->revision > 1)
> > + return (node->flags & ACPI_PPTT_ACPI_LEAF_NODE);
> > +
> > table_end = (unsigned long)table_hdr + table_hdr->length;
> > node_entry = ACPI_PTR_DIFF(node, table_hdr);
> > entry = ACPI_ADD_PTR(struct acpi_subtable_header, table_hdr,
> > --

Patch applied, thanks!

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