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Subject: Re: [PATCH V2 2/2] mm/pgtable/debug: Add test validating architecture
 page table helpers
To:     "Kirill A. Shutemov" <kirill@shutemov.name>
Cc:     linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
        Vlastimil Babka <vbabka@suse.cz>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Mike Rapoport <rppt@linux.vnet.ibm.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Dan Williams <dan.j.williams@intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Michal Hocko <mhocko@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Mark Brown <broonie@kernel.org>,
        Steven Price <Steven.Price@arm.com>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Kees Cook <keescook@chromium.org>,
        Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        Matthew Wilcox <willy@infradead.org>,
        Sri Krishna chowdary <schowdary@nvidia.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Russell King - ARM Linux <linux@armlinux.org.uk>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Paul Mackerras <paulus@samba.org>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S. Miller" <davem@davemloft.net>,
        Vineet Gupta <vgupta@synopsys.com>,
        James Hogan <jhogan@kernel.org>,
        Paul Burton <paul.burton@mips.com>,
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References: <1568268173-31302-1-git-send-email-anshuman.khandual@arm.com>
 <1568268173-31302-3-git-send-email-anshuman.khandual@arm.com>
 <20190912110016.srrydg2krplscbgq@box>
From:   Anshuman Khandual <anshuman.khandual@arm.com>
Message-ID: <0116e7b7-cee5-c821-cc54-f4e397c774b2@arm.com>
Date:   Thu, 12 Sep 2019 17:39:13 +0530
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On 09/12/2019 04:30 PM, Kirill A. Shutemov wrote:
> On Thu, Sep 12, 2019 at 11:32:53AM +0530, Anshuman Khandual wrote:
>> +MODULE_LICENSE("GPL v2");
>> +MODULE_AUTHOR("Anshuman Khandual <anshuman.khandual@arm.com>");
>> +MODULE_DESCRIPTION("Test architecture page table helpers");
> 
> It's not module. Why?

Not any more. Nothing in particular. Just that module_init() code gets
executed after page allocator init which is needed here. But I guess
probably not a great way to get this test started.

> 
> BTW, I think we should make all code here __init (or it's variants) so it
> can be discarded on boot. It has not use after that.

Sounds good, will change. Will mark all these functions as __init and
will trigger the test with late_initcall().