linux-kernel - Re: [PATCH 0/2] arch: arm64: xilinx: Make zynqmp

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Message-ID: <20200110115415.GC39451@bogus>
Date:   Fri, 10 Jan 2020 11:54:15 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     Jolly Shah <jolly.shah@...inx.com>
Cc:     ard.biesheuvel@...aro.org, mingo@...nel.org,
        gregkh@...uxfoundation.org, matt@...eblueprint.co.uk,
        hkallweit1@...il.com, keescook@...omium.org,
        dmitry.torokhov@...il.com, michal.simek@...inx.com,
        rajanv@...inx.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Sudeep Holla <sudeep.holla@....com>,
        Tejas Patel <tejas.patel@...inx.com>
Subject: Re: [PATCH 0/2] arch: arm64: xilinx: Make zynqmp_firmware driver
 optional

On Thu, Jan 09, 2020 at 11:06:02AM -0800, Jolly Shah wrote:
> From: Tejas Patel <tejas.patel@...inx.com>
>
> Zynqmp firmware driver requires firmware to be present in system.
> Zynqmp firmware driver will crash if firmware is not present in system.
> For example single arch QEMU, may not have firmware, with such setup
> Linux booting fails.
>
> So make zynqmp_firmware driver as optional to disable it if user don't
> have firmware in system.
>

Why can't it be detected runtime ? How do you handle single binary if you
make this compile time option ?

--
Regards,
Sudeep