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s390/compat: change default for CONFIG_COMPAT to "n"

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31 bit support has been removed from the kernel more than eight years
ago. The last 31 bit distribution is many years older. There shouldn't be
any 31 bit code around anymore.

Therefore avoid providing an unused and only partially tested user space
interface and change the default for CONFIG_COMPAT from "yes" to "no".

Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2023-12-08 13:50:35 +01:00 committed by Alexander Gordeev
parent de927f6c0b
commit 77ed045e88
2 changed files with 4 additions and 3 deletions
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6
arch/s390/Kconfig
View File

@ -443,7 +443,7 @@ config COMMAND_LINE_SIZE
line.
config COMPAT
def_bool y
def_bool n
prompt "Kernel support for 31 bit emulation"
select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION
@ -454,7 +454,9 @@ config COMPAT
Select this option if you want to enable your system kernel to
handle system-calls from ELF binaries for 31 bit ESA. This option
(and some other stuff like libraries and such) is needed for
executing 31 bit applications. It is safe to say "Y".
executing 31 bit applications.
If unsure say N.
config SMP
def_bool y

1
arch/s390/configs/zfcpdump_defconfig
View File

@ -10,7 +10,6 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CRASH_DUMP=y
CONFIG_MARCH_Z13=y
# CONFIG_COMPAT is not set
CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
# CONFIG_CHSC_SCH is not set