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Subject: Re: [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper
To:     Souptick Joarder <jrdr.linux@gmail.com>,
        Kefeng Wang <wangkefeng.wang@huawei.com>
Cc:     uclinux-h8-devel@lists.sourceforge.jp, linux-s390@vger.kernel.org,
        linux-sh@vger.kernel.org, X86 ML <x86@kernel.org>,
        linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org,
        Linux-MM <linux-mm@kvack.org>, linux-m68k@lists.linux-m68k.org,
        openrisc@lists.librecores.org,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-snps-arc@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
        linux-riscv@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org
References: <20210608083418.137226-1-wangkefeng.wang@huawei.com>
 <20210608083418.137226-2-wangkefeng.wang@huawei.com>
 <CAFqt6zYmCQ=wxEjnOJ6fgJWYQyFajBuxWD=UT_D-WjWUS_4pcw@mail.gmail.com>
From:   Christophe Leroy <christophe.leroy@csgroup.eu>
Message-ID: <34f88fdc-1842-7954-bccc-0142a8d66eea@csgroup.eu>
Date:   Tue, 8 Jun 2021 16:57:13 +0200
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Le 08/06/2021 à 16:53, Souptick Joarder a écrit :
> On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
>>
>> Add setup_initial_init_mm() helper to setup kernel text,
>> data and brk.
>>
>> Cc: linux-snps-arc@lists.infradead.org
>> Cc: linux-arm-kernel@lists.infradead.org
>> Cc: linux-csky@vger.kernel.org
>> Cc: uclinux-h8-devel@lists.sourceforge.jp
>> Cc: linux-m68k@lists.linux-m68k.org
>> Cc: openrisc@lists.librecores.org
>> Cc: linuxppc-dev@lists.ozlabs.org
>> Cc: linux-riscv@lists.infradead.org
>> Cc: linux-sh@vger.kernel.org
>> Cc: linux-s390@vger.kernel.org
>> Cc: x86@kernel.org
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
>> ---
>>   include/linux/mm.h | 3 +++
>>   mm/init-mm.c       | 9 +++++++++
>>   2 files changed, 12 insertions(+)
>>
>> diff --git a/include/linux/mm.h b/include/linux/mm.h
>> index c274f75efcf9..02aa057540b7 100644
>> --- a/include/linux/mm.h
>> +++ b/include/linux/mm.h
>> @@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
>>
>>   #define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
>>
>> +void setup_initial_init_mm(void *start_code, void *end_code,
>> +                          void *end_data, void *brk);
>> +
> 
> Gentle query -> is there any limitation to add inline functions in
> setup_arch() functions ?

Kefeng just followed comment from Mike I guess, see 
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210604070633.32363-2-wangkefeng.wang@huawei.com/#2696253

Christophe