linux-kernel - [PATCH] ARM: Drop CMDLINE_FORCE dependency on !ARCH

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Date:   Tue, 27 Sep 2022 15:26:26 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Russell King <linux@...linux.org.uk>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Russell King <rmk+kernel@...linux.org.uk>, soc@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH] ARM: Drop CMDLINE_FORCE dependency on !ARCH_MULTIPLATFORM

On older platforms that boot an image with an appended DTB, or where
the boot loader has no support for updating chosen/bootargs, it is
common to rely on CMDLINE_FORCE.

While a fixed command line can make the kernel unbootable on other
platforms, it is not guaranteed to cause that.  E.g. all Renesas boards
use the same chosen/bootargs in upstream DTS, which works fine if your
DHCP server hands out proper nfsroot parameters.

Fixes: 84fc863606239d8b ("ARM: make ARCH_MULTIPLATFORM user-visible")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 arch/arm/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 22f62ad919bfd831..ea8adbf25651438a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1616,7 +1616,6 @@ config CMDLINE_EXTEND
 
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
-	depends on !ARCH_MULTIPLATFORM
 	help
 	  Always use the default kernel command string, even if the boot
 	  loader passes other arguments to the kernel.
-- 
2.25.1