OpenWrt is completely compiled from sources using a 64 bit compiler, we
do not need support for the old 32 bit MIPS interface on 64 Bit CPUs,
deactivate it.
Fixes: 46af22de16 ("kernel: Remove CONFIG_COMPAT")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This removes support for executing old 32 bit applications on 64 bit ARM
and MIPS kernels.
On OpenWrt we normally compile all the user space applications on our
own and do not support third party binary only modules especial not 32
bit applications on 64 bit CPUs.
This reduces the attack surface on such systems and should also save
some memory.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit adds support for Linux 4.19 kernel, various cleanups
listed below.
Drop 170-cisco-hack.patch as these devices never seems to have been
supported.
Unset kernel symbols:
* CONFIG_CAVIUM_CN63XXP1=y
No supported hardware uses CN63XXP1 and it causes "slight decrease in
performance"
Source: https://cateee.net/lkddb/web-lkddb/CAVIUM_CN63XXP1.html
* CONFIG_USB_OCTEON_EHCI=y
CONFIG_USB_OCTEON_OHCI=y
Deprecated
Source: https://cateee.net/lkddb/web-lkddb/USB_OCTEON_EHCI.htmlhttps://cateee.net/lkddb/web-lkddb/USB_OCTEON_OHCI.html
Removed kernel symbols:
* # CONFIG_ARCH_HIBERNATION_POSSIBLE=y
* CONFIG_ARCH_SUSPEND_POSSIBLE=y
These are not in if you do a vanilla config of a MIPS Octeon kernel
and I can't find any references about support on this platform.
* # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
* CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
No need to have this in by default, not defined in most other targets
* CONFIG_CRASH_CORE=y
Can't find any documentation why this should be enabled by default
* CONFIG_DEBUG_INFO=y
Set by https://github.com/openwrt/openwrt/blob/master/config/Config-kernel.in#L134
* CONFIG_DEBUG_SPINLOCK=y
No need to have this in by default
* CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
Already set by default
Source: https://cateee.net/lkddb/web-lkddb/DEFAULT_HUNG_TASK_TIMEOUT.html
* CONFIG_DETECT_HUNG_TASK=y
No need to have this in by default, not defined in most other targets
* CONFIG_HAVE_DEBUG_KMEMLEAK=y
No need to have this in by default, not defined in most other targets
* CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
No need to have this in by default
* CONFIG_HAVE_IDE=y
None of the supported devices have IDE
* CONFIG_HZ=250
* # CONFIG_HZ_100 is not set
* CONFIG_HZ_250=y
This is broken with generic config
* CONFIG_KALLSYMS=y
No need to have this in by default, not defined in most other targets
* CONFIG_KEXEC=y
* CONFIG_KEXEC_CORE=y
No need to have this in by default, not defined in most other targets
* CONFIG_HAVE_KVM=y
No need to have this in by default
* CONFIG_SCHED_DEBUG=y
No need to have this in by default, not defined in most other targets
* CONFIG_SYSFS_DEPRECATED=y
Deprecated symbol
Source: https://cateee.net/lkddb/web-lkddb/SYSFS_DEPRECATED.html
* CONFIG_SYSFS_DEPRECATED_V2=y
Discouraged usage in general
Source: https://cateee.net/lkddb/web-lkddb/SYSFS_DEPRECATED_V2.html
* CONFIG_UNINLINE_SPIN_UNLOCK=y
No need to have this in by default, not defined in most other targets
Source: https://github.com/openSUSE/kernel/blob/master/lib/Kconfig.debug#L1137
* CONFIG_ZLIB_INFLATE=y
No need to have this in by default, not defined in most other targets
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Hauke Mehrtens
Daniel Engberg