Subject: Re: [PATCH -next 0/3] replace open coded VA->PA calculation
To:     Arnd Bergmann <arnd@arndb.de>
CC:     Russell King - ARM Linux <linux@armlinux.org.uk>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Gregory CLEMENT <gregory.clement@bootlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Viresh Kumar <vireshk@kernel.org>,
        Shiraz Hashim <shiraz.linux.kernel@gmail.com>,
        SoC Team <soc@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Ard Biesheuvel <ardb@kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        "moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES" 
        <linux-samsung-soc@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        <gongruiqi1@huawei.com>, <wangweiyang2@huawei.com>
References: <20211218085843.212497-1-cuigaosheng1@huawei.com>
 <CAK8P3a1-0u4VCCfgc7tjmnANM0yr7oUrQX2y-ZSVvZHDN191BQ@mail.gmail.com>
From:   cuigaosheng <cuigaosheng1@huawei.com>
Message-ID: <dfc25b22-2f66-4404-66c4-44c9c8c3bab4@huawei.com>
Date:   Tue, 21 Dec 2021 09:41:32 +0800
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.6.1
MIME-Version: 1.0
In-Reply-To: <CAK8P3a1-0u4VCCfgc7tjmnANM0yr7oUrQX2y-ZSVvZHDN191BQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk

> I could apply them directly with the maintainer Acks, but I don't understand
> the significance of you sending them now. Is something broken without the
> three patches? Are these the only ones missing from Ard's original series,
> or is this preparation? Would you expect the patches to get backported to
> stable kernels?

Thanks for your reply.

This is preparation work for arm32 kaslr,and I want to continue to improve
the solution based on the work of Ard. These patches are relatively
independent, so I submit these patches first.

Gaosheng.

在 2021/12/20 23:39, Arnd Bergmann 写道:
> On Sat, Dec 18, 2021 at 9:58 AM Gaosheng Cui <cuigaosheng1@huawei.com> wrote:
>> These patches replace an open coded calculation to obtain the physical
>> address of a far symbol with a call to the new ldr_l etc macro, and they
>> belong to the kaslr patch set of arm32.
>>
>> Reference: https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/log/?h=arm-kaslr-latest
>>
>> Ard Biesheuvel (3):
>>    arm-soc: exynos: replace open coded VA->PA conversions
>>    arm-soc: mvebu: replace open coded VA->PA conversion
>>    arm-soc: various: replace open coded VA->PA calculation
> Usually these patches should go through the respective platform
> maintainer trees,
> and from there into the soc tree, but time is a little short here.
>
> I could apply them directly with the maintainer Acks, but I don't understand
> the significance of you sending them now. Is something broken without the
> three patches? Are these the only ones missing from Ard's original series,
> or is this preparation? Would you expect the patches to get backported to
> stable kernels?
>
>         Arnd
> .