linux-kernel - Re: [PATCH 3/3] arm64: alpine: select AL

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Date:   Tue, 10 Sep 2019 09:17:11 +0300
From:   "Shenhar, Talel" <talel@...zon.com>
To:     Arnd Bergmann <arnd@...db.de>
CC:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        David Miller <davem@...emloft.net>,
        gregkh <gregkh@...uxfoundation.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Patrick Venture" <venture@...gle.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        "Olof Johansson" <olof@...om.net>,
        Maxime Ripard <mripard@...nel.org>,
        "Santosh Shilimkar" <ssantosh@...nel.org>,
        <paul.kocialkowski@...tlin.com>, <mjourdan@...libre.com>,
        Catalin Marinas <catalin.marinas@....com>,
        "Will Deacon" <will@...nel.org>, DTML <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        David Woodhouse <dwmw@...zon.co.uk>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        <hhhawa@...zon.com>, <ronenk@...zon.com>, <jonnyc@...zon.com>,
        <hanochu@...zon.com>, <barakw@...zon.com>
Subject: Re: [PATCH 3/3] arm64: alpine: select AL_POS


On 9/9/2019 6:08 PM, Arnd Bergmann wrote:
> On Mon, Sep 9, 2019 at 3:59 PM Shenhar, Talel <talel@...zon.com> wrote:
>> On 9/9/2019 4:45 PM, Arnd Bergmann wrote:
>>
>> Its not that something will get broken. its error event detector for POS
>> events which allows seeing bad accesses to registers.
>>
>> What is the general rule of which configs to put under select and which
>> under defconfig?
>>
>> I was thinking that "general" SoC support is good under select - those
>> things that we always want.
> I generally want as little as possible to be selected, basically only
> things that are required for linking the kernel and booting it without
> potentially destroying the hardware.
>
> In particular, I want most drivers to be enabled as loadable modules
> if possible. When you have general-purpose distributions support
> your platform, there is no need to have this module built-in while
> running on a different chip, even if you always want to load the
> module when it's running on yours.
>
>> And specific features, e.g. RAID support or features that supported only
>> on specific HW shall go under defconfig.
>>
>> Similar, I see ARCH_LAYERSCAPE selecting EDAC_SUPPORT.
> I think this was done to avoid a link failure. It's also possible that this
> is a mistake and just did not get caught in review.
>
>         Arnd


I see.

Will remove this from v2.