> From: Rob Herring <robh+dt@xxxxxxxxxx>
> Sent: Saturday, June 12, 2021 1:11 AM
>
> On Fri, Jun 11, 2021 at 7:13 AM Dong Aisheng <aisheng.dong@xxxxxxx>
> wrote:
> >
> > Since commit 86588296acbf ("fdt: Properly handle "no-map" field in the
> > memory region"), nomap memory is changed to call
> memblock_mark_nomap()
> > instead of memblock_remove(). But it only changed the reserved memory
> > with fixed addr and size case in early_init_dt_reserve_memory_arch(),
> > not including the dynamical allocation by size case in
> > early_init_dt_alloc_reserved_memory_arch().
> >
> > Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> > Cc: devicetree@xxxxxxxxxxxxxxx
>
> Good practice is to Cc the people involved in referenced commits.
> Adding them now. This code is a minefield so I'd like other eyes on it.
>
Yes, you're right. Thanks for the good suggestion.
Let's wait for their comments.
Regards
Aisheng
> > Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
> > ---
> > drivers/of/of_reserved_mem.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/of/of_reserved_mem.c
> > b/drivers/of/of_reserved_mem.c index 367f298a83b2..ebba88395bf8
> 100644
> > --- a/drivers/of/of_reserved_mem.c
> > +++ b/drivers/of/of_reserved_mem.c
> > @@ -42,7 +42,7 @@ static int __init
> > early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
> >
> > *res_base = base;
> > if (nomap)
> > - return memblock_remove(base, size);
> > + return memblock_mark_nomap(base, size);
> >
> > return memblock_reserve(base, size); } @@ -276,7 +276,7 @@
> > void __init fdt_init_reserved_mem(void)
> > pr_info("node %s compatible matching
> fail\n",
> > rmem->name);
> > if (nomap)
> > - memblock_add(rmem->base,
> rmem->size);
> > +
> > + memblock_clear_nomap(rmem->base, rmem->size);
> > else
> > memblock_free(rmem->base,
> rmem->size);
> > }
> > --
> > 2.25.1
> >
