linux-kernel - Re: [PATCH] ARM: fix XIP

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Message-ID: <CACRpkdZWhMX-16tn0sxY6TLDPeu0rJ2BRvqFunU3W_caJtTFHw@mail.gmail.com>
Date:   Wed, 31 Aug 2022 15:35:01 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Arnd Bergmann <arnd@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>, Sekhar Nori <nsekhar@...com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH] ARM: fix XIP_KERNEL dependencies

On Tue, Aug 30, 2022 at 9:21 AM Arnd Bergmann <arnd@...db.de> wrote:

> CONFIG_XIP_KERNEL does not work with any option that involves patching
> the read-only kernel .text.
>
> Since at least CONFIG_SMP_ON_UP is required in certain configurations,
> flip the dependency to always allow the .text patching options but make
> XIP_KERNEL have the dependency instead.
>
> This is a prerequisite for allowing CONFIG_ARCH_MULTIPLATFORM to
> be disabled.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

OK this should work!
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij