[PATCH v3] ACPI/IORT: Remove erroneous id_count check in iort_node_get_rmr_info()

[Catalin Marinas]

On Thu, Jul 27, 2023 at 03:39:27PM +0200, Lorenzo Pieralisi wrote:
> On Mon, Jul 17, 2023 at 07:33:45PM +0800, Guanghui Feng wrote:
> > According to the ARM IORT specifications DEN 0049 issue E,
> > the "Number of IDs" field in the ID mapping format reports
> > the number of IDs in the mapping range minus one.
> > 
> > In iort_node_get_rmr_info(), we erroneously skip ID mappings
> > whose "Number of IDs" equal to 0, resulting in valid mapping
> > nodes with a single ID to map being skipped, which is wrong.
> > 
> > Fix iort_node_get_rmr_info() by removing the bogus id_count
> > check.
> > 
> > Fixes: 491cf4a6735a ("ACPI/IORT: Add support to retrieve IORT RMR reserved regions")
> > Signed-off-by: Guanghui Feng <guanghuifeng at linux.alibaba.com>
> > ---
> >  drivers/acpi/arm64/iort.c | 3 ---
> >  1 file changed, 3 deletions(-)
> 
> Acked-by: Lorenzo Pieralisi <lpieralisi at kernel.org>
> 
> Catalin/Will,
> 
> can you pick this up please ?

Would you like it merged in 6.5 or 6.6 is fine?

Thanks.

-- 
Catalin