Re: [PATCH v3 resend 11/15] powerpc: convert to setup_initial_init_mm()

From: Souptick Joarder
Date: Tue Jun 08 2021 - 10:36:58 EST


On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> wrote:
>
> Use setup_initial_init_mm() helper to simplify code.
>
> Note klimit is (unsigned long) _end, with new helper,
> will use _end directly.

With this change klimit left with no user in this file and can be
moved to some appropriate header.
But in a separate series.

>
> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
> ---
> arch/powerpc/kernel/setup-common.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
> index 74a98fff2c2f..96697c6e1e16 100644
> --- a/arch/powerpc/kernel/setup-common.c
> +++ b/arch/powerpc/kernel/setup-common.c
> @@ -927,10 +927,7 @@ void __init setup_arch(char **cmdline_p)
>
> klp_init_thread_info(&init_task);
>
> - init_mm.start_code = (unsigned long)_stext;
> - init_mm.end_code = (unsigned long) _etext;
> - init_mm.end_data = (unsigned long) _edata;
> - init_mm.brk = klimit;
> + setup_initial_init_mm(_stext, _etext, _edata, _end);
>
> mm_iommu_init(&init_mm);
> irqstack_early_init();
> --
> 2.26.2
>
>