From: Daniel Walker <danielwa@cisco.com>
To: Will Deacon <will@kernel.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
ob Herring <robh@kernel.org>,
Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>,
Andrew Morton <akpm@linux-foundation.org>,
x86@kernel.org, linux-mips@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Catalin Marinas <catalin.marinas@arm.com>
Cc: xe-linux-external@cisco.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 8/8] CMDLINE: arm64: convert to generic builtin command line
Date: Tue, 30 Mar 2021 10:57:03 -0700 [thread overview]
Message-ID: <be8847438abbfa4972dd792eb616973816af9290.1617126961.git.danielwa@cisco.com> (raw)
In-Reply-To: <41021d66db2ab427c14255d2a24bb4517c8b58fd.1617126961.git.danielwa@cisco.com>
This updates the arm64 code to use the CONFIG_GENERIC_CMDLINE
option.
Cc: xe-linux-external@cisco.com
Signed-off-by: Daniel Walker <danielwa@cisco.com>
---
arch/arm64/Kconfig | 33 +-----------------------------
arch/arm64/kernel/idreg-override.c | 8 +++++---
arch/arm64/kernel/setup.c | 4 ++++
3 files changed, 10 insertions(+), 35 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e4e1b6550115..9781ba3758b1 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -105,6 +105,7 @@ config ARM64
select GENERIC_ALLOCATOR
select GENERIC_ARCH_TOPOLOGY
select GENERIC_CLOCKEVENTS_BROADCAST
+ select GENERIC_CMDLINE
select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_VULNERABILITIES
select GENERIC_EARLY_IOREMAP
@@ -1841,38 +1842,6 @@ config ARM64_ACPI_PARKING_PROTOCOL
protocol even if the corresponding data is present in the ACPI
MADT table.
-config CMDLINE
- string "Default kernel command string"
- default ""
- help
- Provide a set of default command-line options at build time by
- entering them here. As a minimum, you should specify the the
- root device (e.g. root=/dev/nfs).
-
-choice
- prompt "Kernel command line type" if CMDLINE != ""
- default CMDLINE_FROM_BOOTLOADER
- help
- Choose how the kernel will handle the provided default kernel
- command line string.
-
-config CMDLINE_FROM_BOOTLOADER
- bool "Use bootloader kernel arguments if available"
- help
- Uses the command-line options passed by the boot loader. If
- the boot loader doesn't provide any, the default kernel command
- string provided in CMDLINE will be used.
-
-config CMDLINE_FORCE
- bool "Always use the default kernel command string"
- help
- Always use the default kernel command string, even if the boot
- loader passes other arguments to the kernel.
- This is useful if you cannot or don't want to change the
- command-line options your boot loader passes to the kernel.
-
-endchoice
-
config EFI_STUB
bool
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c
index 83f1c4b92095..fb10cd860a26 100644
--- a/arch/arm64/kernel/idreg-override.c
+++ b/arch/arm64/kernel/idreg-override.c
@@ -9,6 +9,7 @@
#include <linux/ctype.h>
#include <linux/kernel.h>
#include <linux/libfdt.h>
+#include <linux/cmdline.h>
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
@@ -188,11 +189,12 @@ static __init void parse_cmdline(void)
{
const u8 *prop = get_bootargs_cmdline();
- if (IS_ENABLED(CONFIG_CMDLINE_FORCE) || !prop)
- __parse_cmdline(CONFIG_CMDLINE, true);
+ __parse_cmdline(CMDLINE_PREPEND, true);
- if (!IS_ENABLED(CONFIG_CMDLINE_FORCE) && prop)
+ if (IS_ENABLED(CMDLINE_OVERRIDE) && prop)
__parse_cmdline(prop, true);
+
+ __parse_cmdline(CMDLINE_APPEND, true);
}
/* Keep checkers quiet */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 61845c0821d9..01791ce5244c 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -30,6 +30,7 @@
#include <linux/psci.h>
#include <linux/sched/task.h>
#include <linux/mm.h>
+#include <linux/cmdline.h>
#include <asm/acpi.h>
#include <asm/fixmap.h>
@@ -322,6 +323,9 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p)
* cpufeature code and early parameters.
*/
jump_label_init();
+
+ cmdline_add_builtin(boot_command_line, NULL, COMMAND_LINE_SIZE);
+
parse_early_param();
/*
--
2.25.1
next prev parent reply other threads:[~2021-03-30 17:58 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-30 17:56 [PATCH 1/8] CMDLINE: add generic builtin command line Daniel Walker
2021-03-30 17:56 ` [PATCH 2/8] CMDLINE: drivers: of: ifdef out cmdline section Daniel Walker
2021-03-30 19:49 ` Rob Herring
2021-03-30 23:17 ` Daniel Walker
2021-04-07 22:59 ` Rob Herring
2021-04-09 1:26 ` Daniel Walker
2021-04-02 17:32 ` Christophe Leroy
2021-04-06 16:35 ` Daniel Walker
2021-03-30 17:56 ` [PATCH 3/8] powerpc: convert strcpy to strlcpy in prom_init Daniel Walker
2021-04-02 17:32 ` Christophe Leroy
2021-03-30 17:56 ` [PATCH 4/8] CMDLINE: powerpc: convert to generic builtin command line Daniel Walker
2021-04-02 17:34 ` Christophe Leroy
2021-04-06 16:38 ` Daniel Walker
2021-03-30 17:57 ` [PATCH 5/8] CMDLINE: mips: " Daniel Walker
2021-03-30 17:57 ` [PATCH 6/8] drivers: firmware: efi: libstub: enable generic commandline Daniel Walker
2021-03-31 16:10 ` Ard Biesheuvel
2021-03-31 18:21 ` Daniel Walker
2021-04-02 17:36 ` Christophe Leroy
2021-04-06 16:42 ` Daniel Walker
2021-03-30 17:57 ` [PATCH 7/8] CMDLINE: x86: convert to generic builtin command line Daniel Walker
2021-03-30 17:57 ` Daniel Walker [this message]
2021-04-02 17:28 ` [PATCH 1/8] CMDLINE: add " Christophe Leroy
2021-04-16 4:09 [PATCH 0/8] generic command line v4 Daniel Walker
2021-04-16 4:09 ` [PATCH 8/8] CMDLINE: arm64: convert to generic builtin command line Daniel Walker
2022-09-29 2:32 [PATCH 0/8] generic command line v5 Daniel Walker
2022-09-29 2:32 ` [PATCH 8/8] CMDLINE: arm64: convert to generic builtin command line Daniel Walker
2023-11-10 1:38 [PATCH 0/8] generic command line v6 Daniel Walker
2023-11-10 1:38 ` [PATCH 8/8] CMDLINE: arm64: convert to generic builtin command line Daniel Walker
2023-11-23 6:39 ` Christophe Leroy
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