# Re: \[PATCH v3 resend 11/15\] powerpc: convert to setup\_initial\_init\_mm()

- From: Christophe Leroy \<hidden\>
- Date: 2021-06-08 14:54:41 
- List: linux-mm
- Page: https://ratatoskr.run/linux-mm/2021/06/1406599
- Thread: https://ratatoskr.run/linux-mm/2021/06/1406116/t.md

```text


Le 08/06/2021 à 16:36, Souptick Joarder a écrit :
> On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang [ref] 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.

I have a patch to remove klimit, see https://patchwork.ozlabs.org/project/linuxppc-dev/patch/9fa9ba6807c17f93f35a582c199c646c4a8bfd9c.1622800638.git.christophe.leroy@csgroup.eu/

Christophe


>
>>
>> Cc: Michael Ellerman <mpe@ellerman.id.au>
>> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
>> Cc: <redacted>
>> Signed-off-by: Kefeng Wang <redacted>
>> ---
>>   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
>>
>>

```