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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>,
	Linus Walleij <linus.walleij@linaro.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	soc@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH] ARM: Drop CMDLINE_* dependency on ATAGS
Date: Tue, 27 Sep 2022 15:28:26 +0200	[thread overview]
Message-ID: <09f0619e8038654d01588d9ad3a023485b2bd77f.1664285209.git.geert+renesas@glider.be> (raw)

On arm32, the configuration options to specify the kernel command line
type depend on ATAGS.  However, the actual CMDLINE cofiguration option
does not depend on ATAGS, and the code that handles this is not specific
to ATAGS (see drivers/of/fdt.c:early_init_dt_scan_chosen()).

Hence users who desire to override the kernel command line on arm32 must
enable support for ATAGS, even on a pure-DT system.  Other architectures
(arm64, loongarch, microblaze, nios2, powerpc, and riscv) do not impose
such a restriction.

Hence drop the dependency on ATAGS.

Fixes: bd51e2f595580fb6 ("ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ea8adbf25651438a..68923a69b1d41188 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1599,7 +1599,6 @@ config CMDLINE
 choice
 	prompt "Kernel command line type" if CMDLINE != ""
 	default CMDLINE_FROM_BOOTLOADER
-	depends on ATAGS
 
 config CMDLINE_FROM_BOOTLOADER
 	bool "Use bootloader kernel arguments if available"
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>,
	Linus Walleij <linus.walleij@linaro.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	soc@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH] ARM: Drop CMDLINE_* dependency on ATAGS
Date: Tue, 27 Sep 2022 15:28:26 +0200	[thread overview]
Message-ID: <09f0619e8038654d01588d9ad3a023485b2bd77f.1664285209.git.geert+renesas@glider.be> (raw)

On arm32, the configuration options to specify the kernel command line
type depend on ATAGS.  However, the actual CMDLINE cofiguration option
does not depend on ATAGS, and the code that handles this is not specific
to ATAGS (see drivers/of/fdt.c:early_init_dt_scan_chosen()).

Hence users who desire to override the kernel command line on arm32 must
enable support for ATAGS, even on a pure-DT system.  Other architectures
(arm64, loongarch, microblaze, nios2, powerpc, and riscv) do not impose
such a restriction.

Hence drop the dependency on ATAGS.

Fixes: bd51e2f595580fb6 ("ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ea8adbf25651438a..68923a69b1d41188 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1599,7 +1599,6 @@ config CMDLINE
 choice
 	prompt "Kernel command line type" if CMDLINE != ""
 	default CMDLINE_FROM_BOOTLOADER
-	depends on ATAGS
 
 config CMDLINE_FROM_BOOTLOADER
 	bool "Use bootloader kernel arguments if available"
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2022-09-27 13:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-27 13:28 Geert Uytterhoeven [this message]
2022-09-27 13:28 ` [PATCH] ARM: Drop CMDLINE_* dependency on ATAGS Geert Uytterhoeven
2022-09-27 13:34 ` Ard Biesheuvel
2022-09-27 13:34   ` Ard Biesheuvel
2022-09-28 21:00 ` patchwork-bot+linux-soc

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