linux-kernel - Re: [PATCH v3 resend 11/15] powerpc: convert to setup_initial_init

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Message-ID: <CAFqt6zZWanzsy=F4LVUkovQE-wqKd0CNG-n=Sx7SBddord6Gcg@mail.gmail.com>
Date:   Tue, 8 Jun 2021 20:06:28 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Linux-MM <linux-mm@...ck.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v3 resend 11/15] powerpc: convert to setup_initial_init_mm()

On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@...wei.com> 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@...erman.id.au>
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc: linuxppc-dev@...ts.ozlabs.org
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
> ---
>  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
>
>