While we have CRASHLOG on MIPS it makes sense to support 'classic'
kexec-based CRASH_DUMP on x86 and arm platforms.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Direct-IO support has to be enabled for the release build anyway, so
this hack is not worth keeping

Signed-off-by: Felix Fietkau <nbd@nbd.name>

It could cause crashes with some forms of virtualization, and it is
unlikely to work properly with most systems.
It's safer to just disable it.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

These options are needed to create /dev/mem or /dev/kmem .
/dev/mem is needed by the io tool to access raw hardware memory, which
is helpful when debugging and developing drivers.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: John Crispin <john@phrozen.org>

This makes it possible to activate the gpio and the pinctl debugging
from LEDE menuconfig.

Acked-by: John Crispin <john@phrozen.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Enable selection of the kernel key retention framework and some of its
additional facilities; see Documentation/security/keys.txt and
security/keys/Kconfig for details

Signed-off-by: Nathaniel Wesley Filardo <nwfilardo@gmail.com>

Make global options menuconfig cleaner by moving POSIX ACL
and attr support options into a submenu.

Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>

This adds a configuration options that allows to make filesystem ACL support
the default in the kernel, except for old nfs.

Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>

this causes KALLSYMS to be off by default

Signed-off-by: John Crispin <john@phrozen.org>

Add missing symbol When building kernel with profiling enabled and ARM
or ARM64 targets.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Add the basic set of kernel options to allow it from mounting a NFS root
and boot from it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 48590

These allow the generated kernel's build metadata to be defined explicitly.
This metadata is reported, eg, at boot time and in `uname -a` on running
systems. If the variables aren't configured, the current build system username
and hostname are used as normal.

The motivation for this option is to achive reproducible (bit-for-bit
identical) kernel builds of official openwrt releases.

Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48541

Revision 46834 changed IPv6 support from a module to builtin. But
since the configuration of the IPv6 kernel options was left in
package/kernel/linux/modules/netsupport.mk, this means that an
empty kmod-ipv6 module was still being generated (not packaged).

This patch moves the configuration of the IPv6 kernel options to
config/Config-kernel.in to remove this last bit of the module.

Note that CONFIG_IPV6_PRIVACY was dropped (enabled by default
since Linux v3.13), so this option is no longer needed.

See https://github.com/torvalds/linux/commit/5d9efa7ee99eed58388f186c13cf2e2a87e9ceb4



Signed-off-by: Arjen de Korte <arjen+openwrt@de-korte.org>

SVN-Revision: 48132

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 47275

Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 47197

Memory Resource Controller no longer depends on Resource counters since
Kernel version 4.0.
3.18 is the only still supported version needing Resource counters for
MEMCG, thus declare the dependency only for that version.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 46024

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45212

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 45005

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44965

These kernel options are all likely to be widely useful in this modern age, but
are immediately useful for systemd support.

c.f. http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-apps/systemd/systemd-9999.ebuild?&view=markup#l118



Adapted from a patch by Adam Porter.

Signed-off-by: Jeff Waugh <jdub@bethesignal.org>

SVN-Revision: 44929

Adds menuconfig options for ftrace function tracers

Signed-off-by: Bryan Forbes <bryan@reigndropsfall.net>

SVN-Revision: 44878

This is needed by many services to function properly and as
all modern distributions got it enabled, it starts to be a
de-facto standard, i.e. user-space starts to silently depend
on it.

This also pulls in EXPORTFS, however, the kernel binary size
increases only a little.
On ARM systems comes down to 800 bytes uncompressed and about
200 bytes compressed size.
On MIPS systems it's about 1.2 kB size increase of the LZMA
compressed kernel.

v2: use menuconfig option instead of just enabling the option

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 44765

Signed-off-by: Nicolas Thill <nico@openwrt.org>

SVN-Revision: 44397

It's useful for debugging and safe at the same time as we enable it per
device.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43980

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 43888

Non-functional changes to config/Config-*.in files, including:

* spelling mistakes
* inconsistent terminology
* grammar
* overly long lines in "help" components

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

SVN-Revision: 42519

This option will be enabled by default only when cgroups support is enabled.

Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 42464

SVN-Revision: 41153

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 41030

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 40858

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 40855

This change does multiple things, all related to enable sparse usage as
a static analysis tool selectable from the OpenWrt configuration:
*add a KERNEL_SPARSE option in the config to add sparse to the kernel
 build (through the C=1 option usage)
*add sparse as a new host tools. It will get selected automatically when
 the above option will be enabled

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

SVN-Revision: 40490

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 40361

Recent lxc versions are not useful if this option is not enabled. That said,
enable KERNEL_POSIX_MQUEUE by default when KERNEL_LXC_MISC is selected.

Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39385

Useful when debugging kernel which uses this infrastructure, for
example ubi/ubifs.

Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39007

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 38895

The number of Linux kernel related config options has become quite big
over the past few months, they deserve their own Config-kernel.in file.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 38524