linux-kernel - Re: [PATCH V2 3/3] arm64: defconfig: Enable CRYPTO_DEV_FSL

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Message-ID: <CAOMZO5B_CCEf_cdAWs_FDC1c6t0RG1KjRjGidoDPmPmgxY=ebg@mail.gmail.com>
Date:   Tue, 17 Dec 2019 15:25:04 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Adam Ford <aford173@...il.com>
Cc:     Horia Geanta <horia.geanta@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [PATCH V2 3/3] arm64: defconfig: Enable CRYPTO_DEV_FSL_CAAM

Hi Adam,

On Tue, Dec 17, 2019 at 10:07 AM Adam Ford <aford173@...il.com> wrote:

> Out of curiosity, what is the rule for when things are 'm' vs 'y'?
>
> In the Code Aurora repo, it is set to 'y' and the mainline kernel for
> the i.MX6/7, the imx_v6_v7_defconfig is also set to 'y' which is why I
> used 'y' here.
>
> I can do a V3 to address the other items you noted, but I want to
> understand the rules about the defconfig so I don't make the same
> mistake again.

In arch/arm64/configs/defconfig we try to select modules whenever possible.

The exceptions are drivers that are vital for boot such as PMIC,
pinctrl, clks, etc.

The CAAM driver does not fall into this category, so selecting it as
module is preferred here.

Thanks