diff options
| author |   Alexander Holler <holler@ahsoftware.de> | 2010-02-16 19:04:53 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2010-05-24 20:45:00 +0100 |
| commit | 92d2040d78f662f634efce7a5106bbed70b8708b (patch) | |
| tree | 15ab19b8d528b7ffb42e3b39f3db7e4b67ceec70 /arch | |
| parent | ARM: 6140/1: silence a bogus sparse warning in unwind.c (diff) | |
| download | linux-dev-92d2040d78f662f634efce7a5106bbed70b8708b.tar.xz linux-dev-92d2040d78f662f634efce7a5106bbed70b8708b.zip | |
ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
Add an option to force usage of the in-kernel cmdline even if the boot
loader passes another command string to the kernel.
Useful if someone cannot or don't want to change the
command-line options of the boot loader but is able to change
the kernel.
Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2d70cece2ea2..8555bd7d7845 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1419,6 +1419,17 @@ config CMDLINE time by entering them here. As a minimum, you should specify the memory size and the root device (e.g., mem=64M root=/dev/nfs). +config CMDLINE_FORCE + bool "Always use the default kernel command string" + depends on CMDLINE != "" + 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. + + If unsure, say N. + config XIP_KERNEL bool "Kernel Execute-In-Place from ROM" depends on !ZBOOT_ROM diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index c91c77b54dea..122d999bdc7c 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -593,6 +593,7 @@ static int __init parse_tag_revision(const struct tag *tag) __tagtable(ATAG_REVISION, parse_tag_revision); +#ifndef CONFIG_CMDLINE_FORCE static int __init parse_tag_cmdline(const struct tag *tag) { strlcpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); @@ -600,6 +601,7 @@ static int __init parse_tag_cmdline(const struct tag *tag) } __tagtable(ATAG_CMDLINE, parse_tag_cmdline); +#endif /* CONFIG_CMDLINE_FORCE */ /* * Scan the tag table for this tag, and call its parse function. |