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authorSven Schnelle <svens@linux.ibm.com>2021-09-29 09:09:34 +0200
committerVasily Gorbik <gor@linux.ibm.com>2021-10-26 15:21:31 +0200
commit622021cd6c560ce7aaaf7294a732177a30c9d65f (patch)
tree531938c1100479285f28ddefabba0ecdd0ec22a4 /arch/s390/Kconfig
parents390: support command lines longer than 896 bytes (diff)
downloadlinux-dev-622021cd6c560ce7aaaf7294a732177a30c9d65f.tar.xz
linux-dev-622021cd6c560ce7aaaf7294a732177a30c9d65f.zip
s390: make command line configurable
Allow to configure the command line to an arbitrary length, with a default of 4096 bytes. Also remove COMMAND_LINE_SIZE from include/uapi/asm/setup.h as this is dynamic now and doesn't tell anything about the command line size limitations of a new kernel that might be loaded. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d0d42c5c4141..8857ec3b97eb 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -438,6 +438,14 @@ endchoice
config 64BIT
def_bool y
+config COMMAND_LINE_SIZE
+ int "Maximum size of kernel command line"
+ default 4096
+ range 896 1048576
+ help
+ This allows you to specify the maximum length of the kernel command
+ line.
+
config COMPAT
def_bool y
prompt "Kernel support for 31 bit emulation"