staging/pepe2k/config, branch v21.02.3

build: Replace KERNEL_LOCKUP_DETECTOR with KERNEL_SOFTLOCKUP_DETECTOR

2021-09-13T16:48:55Z

The LOCKUP_DETECTOR configuration option split into the SOFTLOCKUP_DETECTOR and HARDLOCKUP_DETECTOR configuration option some time ago. The HARDLOCKUP_DETECTOR option is only working on some architectures, but SOFTLOCKUP_DETECTOR should work everywhere. Replace KERNEL_LOCKUP_DETECTOR with KERNEL_SOFTLOCKUP_DETECTOR. LOCKUP_DETECTOR will be selected by SOFTLOCKUP_DETECTOR automatically. Fixes: b951f53fbae3 ("build: Add additional kernel debug options") Signed-off-by: Hauke Mehrtens (cherry picked from commit d27f6e2c5d2a2315cc8fe684d117c80aa9984ca8)

build: use SPDX license tags

2021-02-05T13:54:47Z

The license folder is a core part of OpenWrt and all GPL-2.0 licensed. Use SPDX license tags to allow machines to check licenses. Signed-off-by: Paul Spooren [rebase, keep some Copyright lines, sharpen commit message] Signed-off-by: Adrian Schmutzler

kernel: add defaults for new SELinux options

2021-02-05T13:17:49Z

Signed-off-by: Daniel Golle

config: drop CONFIG_KPROBE_EVENT unused since kernel 4.9

2021-01-25T13:37:41Z

The config setting was renamed to CONFIG_KPROBE_EVENTS. Fixes: 97d3f800a8 ("config: kernel: Add KPROBE_EVENTS config option) Signed-off-by: Tony Ambardar

kernel: make lwtunnel support optional

2021-01-15T08:38:39Z

Not everyone will want to bloat their kernel by 24 kiB for such a niche feature. Fixes: a1a7f3274e0ed27511d45f62ee20281d8d57c7af "kernel: enable SRv6 support by enabling lwtunnel" Signed-off-by: Rui Salvaterra

kernel: drop unneeded kernel version dependency

2021-01-14T00:23:16Z

The current master only supports kernel 5.4, and there is no reason to remove KERNEL_IO_URING for future kernels. Drop the unneeded dependency. Signed-off-by: Andy Walsh [improve commit title/message] Signed-off-by: Adrian Schmutzler

kernel: enable SRv6 support by enabling lwtunnel

2021-01-11T21:09:05Z

Enable the ability to use segment routing based on IPv6. It allows the packet to specify a path that the packet should take through the network. Lwtunnel allow an easy encapsulation of a package. You can just install ip-full package and use it: ip -6 route add 2003::/64 dev eth0 encap seg6 mode encap \ segs 2001::1,2002::2 An IPv6 package looks like this: [IPv6 HDR][IPv6 RH][IPv6 HDR][Data...] Netifd support: https://git.openwrt.org/?p=project/netifd.git; a=commit;h=458b1a7e9473c150a40cae5d8be174f4bb03bd39 Increases imagesize by 24.125 KiB. Therefore, only enable for devices with enough flash. Signed-off-by: Nick Hainke

kernel: only strip proc for small flash devices

2020-12-22T18:11:50Z

Currently, you are not able to get statistics about IPv4 and IPv6 usage. This information can be collected via the snmp and snmp6. However, in the current state this interface is disabled as you can read in the "902-debloat_proc.patch": "Strip non-essential /proc functionality to reduce code size" Tools like netstat use the snmp/6 interface to collect interface statistics. Some prometheus exporters also mention this: - prometheus-collectors/netstat.lua - prometheus-collectors/snmp6 (still a PR) - collectd/snmp6 (still a PR) PRs: - https://github.com/collectd/collectd/pull/3789 - https://github.com/openwrt/packages/pull/14158 Instead of enabling it as default for all devices we condition it default y if SMALL_FLASH A test shows it needs around 16 kiB. Signed-off-by: Nick Hainke [fixed whitespace issue] Signed-off-by: Petr Štetiar

kernel: add KERNEL_IO_URING option

2020-12-22T18:11:50Z

* add KERNEL_IO_URING option NOTES: Adds configurable support for the io_uring interface (CONFIG_IO_URING) via KERNEL_IO_URING option. The kernel only zImage grows by about 5-9KB ? I would like to enable this by default for all 5.4 kernels, so i can use the new io_uring samba-4.12.x vfs module by default. The associated liburing was already submitted and merged. The kernel + liburing was tested on ARM/mvebu via samba4 vfs_io_uring module and i have no issues so far. Some extra reads on it and why we should enable it by default, since i expect more packages to use this in the future. https://wiki.samba.org/index.php/Samba_4.12_Features_added/changed#.27io_uring.27_vfs_module https://lwn.net/Articles/810414/ https://kernel.dk/io_uring.pdf https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.6-IO-uring-Tests Signed-off-by: Andy Walsh

build: Add IRQSOFF and PREEMPT TRACER kernel config option

2020-12-16T21:11:19Z

This adds the CONFIG_IRQSOFF_TRACER and the CONFIG_PREEMPT_TRACER kernel configuration option to the OpenWrt menu. This can be used to debug latencies in the system. The CONFIG_PREEMPT_TRACER option needs the CONFIG_PREEMPT option which is supposed to be used for Low-Latency Desktop and not used by many targets in OpenWrt. The help text is copied from the Linux kernel Kconfig. Signed-off-by: Hauke Mehrtens