linux-kernel - Re: [PATCH v2] mm: Move mem_init_print_info() into mm

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Date:   Wed, 17 Mar 2021 13:57:57 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-ia64@...r.kernel.org>, <linux-sh@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        "Dave Hansen" <dave.hansen@...ux.intel.com>, <linux-mm@...ck.org>,
        Guo Ren <guoren@...nel.org>, <sparclinux@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, Jonas Bonn <jonas@...thpole.se>,
        <linux-s390@...r.kernel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        <linux-hexagon@...r.kernel.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        "Russell King" <linux@...linux.org.uk>,
        <linux-csky@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>,
        <linux-snps-arc@...ts.infradead.org>,
        <linux-xtensa@...ux-xtensa.org>,
        Heiko Carstens <hca@...ux.ibm.com>,
        <linux-um@...ts.infradead.org>, <linux-m68k@...ts.linux-m68k.org>,
        <openrisc@...ts.librecores.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Richard Henderson <rth@...ddle.net>,
        <linux-parisc@...r.kernel.org>, <linux-mips@...r.kernel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        <linux-alpha@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH v2] mm: Move mem_init_print_info() into mm_init()


On 2021/3/17 13:48, Christophe Leroy wrote:
>
>
> Le 17/03/2021 à 02:52, Kefeng Wang a écrit :
>> mem_init_print_info() is called in mem_init() on each architecture,
>> and pass NULL argument, so using void argument and move it into 
>> mm_init().
>>
>> Acked-by: Dave Hansen <dave.hansen@...ux.intel.com>
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
>> ---
>> v2:
>> - Cleanup 'str' line suggested by Christophe and ACK
>>
>>   arch/alpha/mm/init.c             |  1 -
>>   arch/arc/mm/init.c               |  1 -
>>   arch/arm/mm/init.c               |  2 --
>>   arch/arm64/mm/init.c             |  2 --
>>   arch/csky/mm/init.c              |  1 -
>>   arch/h8300/mm/init.c             |  2 --
>>   arch/hexagon/mm/init.c           |  1 -
>>   arch/ia64/mm/init.c              |  1 -
>>   arch/m68k/mm/init.c              |  1 -
>>   arch/microblaze/mm/init.c        |  1 -
>>   arch/mips/loongson64/numa.c      |  1 -
>>   arch/mips/mm/init.c              |  1 -
>>   arch/mips/sgi-ip27/ip27-memory.c |  1 -
>>   arch/nds32/mm/init.c             |  1 -
>>   arch/nios2/mm/init.c             |  1 -
>>   arch/openrisc/mm/init.c          |  2 --
>>   arch/parisc/mm/init.c            |  2 --
>>   arch/powerpc/mm/mem.c            |  1 -
>>   arch/riscv/mm/init.c             |  1 -
>>   arch/s390/mm/init.c              |  2 --
>>   arch/sh/mm/init.c                |  1 -
>>   arch/sparc/mm/init_32.c          |  2 --
>>   arch/sparc/mm/init_64.c          |  1 -
>>   arch/um/kernel/mem.c             |  1 -
>>   arch/x86/mm/init_32.c            |  2 --
>>   arch/x86/mm/init_64.c            |  2 --
>>   arch/xtensa/mm/init.c            |  1 -
>>   include/linux/mm.h               |  2 +-
>>   init/main.c                      |  1 +
>>   mm/page_alloc.c                  | 10 +++++-----
>>   30 files changed, 7 insertions(+), 42 deletions(-)
>>
>
>> diff --git a/include/linux/mm.h b/include/linux/mm.h
>> index 89314651dd62..c2e0b3495c5a 100644
>> --- a/include/linux/mm.h
>> +++ b/include/linux/mm.h
>> @@ -2373,7 +2373,7 @@ extern unsigned long free_reserved_area(void 
>> *start, void *end,
>>                       int poison, const char *s);
>>     extern void adjust_managed_page_count(struct page *page, long 
>> count);
>> -extern void mem_init_print_info(const char *str);
>> +extern void mem_init_print_info(void);
>
> Sorry I didn't see that in previous patch.
>
> 'extern' keyword is pointless for function prototypes and is 
> deprecated, you should remove it.
>
> That said,
>
> Reviewed-by: Christophe Leroy <christophe.leroy@....fr> # focussed on 
> powerpc
Thanks, let's wait for more feedback from other architectures, if 
necessary,  will send a new one.
>
>>     extern void reserve_bootmem_region(phys_addr_t start, phys_addr_t 
>> end);
> .
>