ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
PATCH 1/1 ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
If true the default kernel command string is used, 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 <[email protected]>
--- arch/arm/Kconfig | 11 +++++++++++ arch/arm/kernel/setup.c | 2 ++ 2 files changed, 13 insertions(+), 0 deletions(-)
arch/arm/Kconfig +11 -0
@@ -1301,6 +1301,17 @@ 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
arch/arm/kernel/setup.c +2 -0
@@ -627,6 +627,7 @@ 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 );
@@ -634,6 +635,7 @@ 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.
Signature · 1 line
1.6.2.5