This will reduce the size of the kernel if CONFIG_CC_OPTIMIZE_FOR_SIZE is
set like for all targets with small_flash feature flag.
I haven't seen any changes for an ARM64 target which optimizes the
kernel for speed instead.
On the ath79/tiny target the uncompressed kernel size was reduced by
3.2% and the compressed kernel size by 2.1%
kernel size with CONFIG_OPTIMIZE_INLINING=n
4346412 build_dir/target-mips_24kc_musl/linux-ath79_tiny/vmlinux
1391169 build_dir/target-mips_24kc_musl/linux-ath79_tiny/tplink_tl-wr941-v4-kernel.bin
Kernel size with CONFIG_OPTIMIZE_INLINING=y
4212396 build_dir/target-mips_24kc_musl/linux-ath79_tiny/vmlinux
1362051 build_dir/target-mips_24kc_musl/linux-ath79_tiny/tplink_tl-wr941-v4-kernel.bin
This change is currently pending for kernel 5.2 and already in
linux-next, this updates our patch to match the upstream version.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 6dac1c0a9b)
Refreshed all patches.
This bump contains upstream commits which seem to avoid (not properly fix)
the errors as seen in FS#2305 and FS#2297
Altered patches:
- 403-net-mvneta-convert-to-phylink.patch
- 410-sfp-hack-allow-marvell-10G-phy-support-to-use-SFP.patch
Compile-tested on: ar71xx, cns3xxx, imx6, mvebu, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6, x86_64
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
This adds support for kernel 4.14 to the target and directly make it the
default kernel version to use.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Sandeep Sheriker <sandeepsheriker.mallikarjun@microchip.com>
CONFIG_HW_RANDOM_OMAP is not set to any value after kmod-random-omap was
removed, add the configuration option to the generic configuration.
Fixes: cd3b298533 ("omap24xx: Remove unmaintained target")
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>
These were renamed to CONFIG_STRICT_KERNEL_RWX and CONFIG_STRICT_MODULE_RWX and are
activated in kernel 4.14 and later by default.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This activates "Emulate Privileged Access Never using TTBR0_EL1
switching" on ARM64.
This should prevent the kernel from reading code from user space in
kernel context.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This adds additional checks to the copy_from_user() and copy_to_user()
functions. The details are described in this article:
https://lwn.net/Articles/695991/
This should only have a very small performance impact on system calls
and should not affect routing performance.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Upstream has renamed UPROBE_EVENT to UPROBE_EVENTS in the following
commit:
commit 6b0b7551428e4caae1e2c023a529465a9a9ae2d4
Author: Anton Blanchard <anton@samba.org>
Date: Thu Feb 16 17:00:50 2017 +1100
perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS
We have uses of CONFIG_UPROBE_EVENT and CONFIG_KPROBE_EVENT as
well as CONFIG_UPROBE_EVENTS and CONFIG_KPROBE_EVENTS.
Consistently use the plurals.
So I'm changing it to this plural option in order to make kconfig happy
and stop asking about it if kernel is compiled with verbose logging:
Enable uprobes-based dynamic events (UPROBE_EVENTS) [Y/n/?] (NEW)
Signed-off-by: Petr Štetiar <ynezz@true.cz>
New target introduces initial support for NVIDIA Tegra SoC based devices.
It focuses on Tegra 2 CPUs, for successors supporting NEON instruction
set the target should be split in two subtargets.
This initial commit doesn't create any device image, it's groundwork
for further additions.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
This patch adds more disabled DRM config symbols from the
x86' config to the generic target configs. The existing
symbols in the x86' configs are kept for now, until we
know whenever we want to remove such symbols or not
(see Github PR #1831, #1825, #1828).
THis patch also contains a squashed patch from
Daniel Engberg <daniel.engberg.lists@pyret.net> titled
"kernel: Fix config for 4.14" which fixes a duplicated line
added by: commit 8bdc241d01 ("x86: fix geode image builds")
Fixes: 8bdc241d01 ("x86: fix geode image builds")
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This patch removes the obsolete touchscreen config symbols
and all disables all remaining ones in the generic config.
Generated by running drivers/input/touchscreen/Kconfig
sed -n 's/^config[[:space:]]\(.*\)/# CONFIG_\1 is not set/p' Kconfig |\
sort -d
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This patch adds the disabled DRM_RADEON and DRM_AMDGPU
config symbols from the x86' config to the generic target
configs. The existing symbols in the x86' configs are kept
for now, until we know whenever we want to remove such
symbols or not (see Github PR #1831, #1825, #1828).
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
The addition of kmod-input-touchscreen-ads7846 enabled
INPUT_TOUCHSCREEN, which exposes several other symbols on various
targets. Add those symbols to the generic kernel configs to fix build.
Fixes: 77a54bbf13 ("kernel: add kmod-input-touchscreen-ads7846")
Reported-by: Hannu Nyman <hannu.nyman@iki.fi>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This module adds support for small TFT LCD display modules. While this
module also exists in the 4.9 kernel, we are not going to support this
kernel in the next major release, so don't make it available for 4.9.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
DRM packages break modules compilation for sunxi target,
cortexa7 and cortexa8 subtargets.
This patch add missing symbol to generic config.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
CONFIG_USB_IMX21_HCD should be handled in generic config and
module package. So moved it into generic config.
This also fixed build issue (kernel config question) of layerscape
armv8_32b since it also used ARCH_MXC.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
[Deactivate CONFIG_USB_IMX21_HCD also for kernel 4.19]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Enable the built-in BPF JIT compiler for all 4.9, 4.14 and 4.19 kernels,
which should speed up cBPF and eBPF-based packet filtering (tc, iptables)
and packet sniffing (libpcap, tcpdump, fwknopd, etc).
This has minimal kernel size impact, increasing the size of uImage-lzma
(normally ~2 MB on mips_24kc or mips64el_mips64) by 5 KB for the MIPS32
arch cBPF JIT and by 9 KB for the MIPS64 arch eBPF JIT, on kernel 4.14.
With JIT enabled (cBPF only), the standard BPF test module (test_bpf.ko)
running on a DIR-835 (mips_24kc) used 33 CPU seconds, but 68 without JIT.
This change aligns with the notion of OpenWRT as the network go-to swiss
army knife for packet handling, especially on CPU-constrained platforms.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Kernel 4.14.96 got the new configuration option
CIFS_ALLOW_INSECURE_LEGACY which allows to deactivate support for old
and insecure SMB versions like 1.0 and 2.0. Still allow these old SMB
version and fix build problems which occurred because this option was
not defined.
This was found by build bot.
Fixes: 3662157d8b ("kernel: bump 4.14 to 4.14.96")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This patch adds the kmod packaging for the Intersil / Zilker Labs
ZL6100 and compatible digital DC-DC controllers as well as the
core kernel module for the Power Management Bus.
Add:
kmod-pmbus-core
kmod-pmbus-zl6100
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
This refreshes the kernel configuration for kernel 4.14.
First this was run for the legacy target:
make kernel_oldconfig
Then for all targets including the legacy target this was run:
make kernel_oldconfig CONFIG_TARGET=subtarget
The option CONFIG_104_QUAD_8 was added to the generic configuration
because it would have been automatically removed.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89
Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""
Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch
Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.
Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This allows us to use the bridge as a managed switch and gracefully
handle mixed tagged and untagged frames. Prior to this, the only
alternative was creating one bridge per vlan which quickly becomes a
nightmare and still won't let you mix both tagged and untagged frames on
the physical port without some complex ebtables magic.
This is in line with the notion that OpenWRT is the network go-to swiss
army knife when you need a nice set-and-forget, low maintenance box to
handle a specific task.
Current builds of the ip-bridge package already fully support this
feature so the only requirement is enabling the kernel config.
This is disabled by default so existing bridge configurations will not
be affected. This patch only gives the ability to turn it on with an
'ip link' command. If there is interest, I could look into making the
feature accessible via uci configuration.
It causes about 3.1% hit on raw bridging speed, which is relatively
trivial considering that I had to use 300 byte packets to strain the CPU
enough to notice a slowdown at all. The ER8 would chug along at wire
speed otherwise, and that's using only one core. Since the typical
bridge use case on OpenWRT is wireless, I doubt it would be noticeable
at all.
With BRIDGE_VLAN_FILTERING
iperf -u -c 192.168.1.105 -b 1G -l 300
------------------------------------------------------------
Client connecting to 192.168.1.105, UDP port 5001
Sending 300 byte datagrams, IPG target: 2.24 us (kalman adjust)
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.12 port 58045 connected with 192.168.1.105 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 977 MBytes 820 Mbits/sec
[ 3] Sent 3414986 datagrams
[ 3] Server Report:
[ 3] 0.0-10.0 sec 811 MBytes 680 Mbits/sec 0.000 ms
581210/3414986 (0%)
Without BRIDGE_VLAN_FILTERING
iperf -u -c 192.168.1.105 -b 1G -l 300
------------------------------------------------------------
Client connecting to 192.168.1.105, UDP port 5001
Sending 300 byte datagrams, IPG target: 2.24 us (kalman adjust)
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.12 port 36645 connected with 192.168.1.105 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 977 MBytes 820 Mbits/sec
[ 3] Sent 3414990 datagrams
[ 3] Server Report:
[ 3] 0.0-10.0 sec 836 MBytes 701 Mbits/sec 0.000 ms
493950/3414990 (0%)
In terms of kernel size, it uses 16KB (6753K vs 6737K on ER8) so a
0.002% hit. The exact 16KB is probably just due to how the kernel is
compressed.
Suggested-by: Jonathan Thibault <jonathan@navigue.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Compaction is the only memory management component to form high order (larger
physically contiguous) memory blocks reliably. The page allocator relies on
compaction heavily and the lack of the feature can lead to unexpected OOM
killer invocations for high order memory requests. You shouldn't disable this
option unless there really is a strong reason for it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
Optimized inlining was disabled by default when gcc 4 was still
relatively new. By now, all gcc versions handle this well and there
seems to be no real reason to keep it x86-only.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This adds some configuration options which are selectable when the
layerscape armv7 target is compiled.
This was found by build bot.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This adds some configuration options which are selectable when the
samsung target is compiled.
This was found by build bot.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Extend the small_flash feature to disable swap, core dumps, and
kernel debug info, and change the squashfs block size to 1024KiB.
Also change squashfs fragment cache to 2 for small_flash to ease memory
usage.
Signed-off-by: Alex Maclean <monkeh@monkeh.net>
Add a new config option to allow to select the default compile
optimization level for the kernel.
Select the optimization for size by default if the small_flash feature is
set. Otherwise "Optimize for performance" is set.
Add the small_flash feature flag to all (sub)targets which had the
optimization for size in their default kernel config.
Remove CC_OPTIMIZE_FOR_* symbols from all kernel configs to apply the new
setting.
Exceptions to the above are:
- lantiq, where the optimization for size is only required for the
xway_legacy subtarget but was set for the whole target
- mediatek, ramips/mt7620 & ramips/mt76x8 where boards should have
plenty of space and an optimization for size doesn't make much sense
- rb532, which has 128MByte flash
Signed-off-by: Mathias Kresin <dev@kresin.me>
CONFIG_USB_MTU3 is not visible for the mediatek target by default, but
only when CONFIG_USB_GADGET is set. This will config option will be
remove with when running "make kernel_oldconfig", move this option to
the generic config to prevent this.
This fixes the build of the mt7623 subtarget of the mediatek target.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
THIN_ARCHIVES option is enabled by default in the kernel configuration
and no one target config disables it. So enable it by default and remove
this symbol from target specific configs to keep them light.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
New FUTEX_PI configuration symbol enabled if FUTEX and RT_MUTEX symbols
are enabled. Both of these symbols are enabled by default in the
generic config, so enable FUTEX_PI by default too to keep platform
specific configs minimal.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
OVERLAY_FS config symbol selects EXPORTFS since 4.12 kernel, we have
OVERLAY_FS enabled by default, so enable EXPORTFS in the generic config
of 4.14 and remove this option from platform specific configs.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
DRM_LIB_RANDOM config symbol selected only by DRM_DEBUG_MM_SELFTEST
which is disable by default, so disable DRM_LIB_RANDOM by default too.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
These options do not used by any supported arch, so disable them by
default to make arch configs a bit more clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Only one arch (x86_64) enables this option. So disable
ARCH_WANTS_THP_SWAP by default and remove referencies to it from all
configs (except x86_64) to make them clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
In typical OpenWrt setups, there are no other users that have a shell spawned for them by default.
This can be overriden by the kernel.dmesg_output syssctl.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
