c5abbe71d9
Fixes the following warning trace on bcm27xx devices when bcm2835-power is
deferred:
[ 0.216800] ------------[ cut here ]------------
[ 0.216807] Device 'grafx' does not have a release() function, it is broken and must be fixed. See Documentation/core-api/kobject.rst.
[ 0.216863] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:2516 device_release+0x80/0x90
[ 0.216887] Modules linked in:
[ 0.216896] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.85 #0
[ 0.216905] Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT)
[ 0.216911] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 0.216919] pc : device_release+0x80/0x90
[ 0.216928] lr : device_release+0x80/0x90
[ 0.216936] sp : ffffffc080ccb6d0
[ 0.216940] x29: ffffffc080ccb6d0 x28: 0000000000000000 x27: ffffff8040d49810
[ 0.216953] x26: ffffff8040c904b8 x25: ffffff8040c904a0 x24: ffffffc0808a7f08
[ 0.216964] x23: ffffffc080a1a6d8 x22: 0000000000000000 x21: ffffffc080a1afe0
[ 0.216976] x20: 0000000000000000 x19: ffffff8040c900b8 x18: 000000000000009f
[ 0.216987] x17: 206e656b6f726220 x16: 7369207469202c6e x15: ffffffc080b4ee88
[ 0.216998] x14: 00000000000001dd x13: 000000000000009f x12: 00000000ffffffea
[ 0.217009] x11: 00000000ffffefff x10: ffffffc080ba6e88 x9 : ffffffc080b4ee30
[ 0.217020] x8 : 0000000000017fe8 x7 : c0000000ffffefff x6 : 0000000000057fa8
[ 0.217031] x5 : 0000000000000fff x4 : 0000000000000000 x3 : ffffffc080ccb4d0
[ 0.217042] x2 : ffffffc080b4edc8 x1 : ffffffc080b4edc8 x0 : 000000000000007a
[ 0.217053] Call trace:
[ 0.217058] device_release+0x80/0x90
[ 0.217067] kobject_put+0xac/0x100
[ 0.217078] put_device+0x14/0x24
[ 0.217086] genpd_remove+0x16c/0x244
[ 0.217093] pm_genpd_remove+0x2c/0x50
[ 0.217099] bcm2835_power_probe+0x1f8/0x2b8
[ 0.217107] platform_probe+0x68/0xc4
[ 0.217118] really_probe+0x148/0x2b0
[ 0.217125] __driver_probe_device+0x78/0x128
[ 0.217131] driver_probe_device+0x40/0xdc
[ 0.217138] __device_attach_driver+0xb8/0xf8
[ 0.217145] bus_for_each_drv+0x70/0xb8
[ 0.217151] __device_attach+0xa0/0x184
[ 0.217158] device_initial_probe+0x14/0x20
[ 0.217165] bus_probe_device+0xac/0xb0
[ 0.217171] device_add+0x5a8/0x760
[ 0.217177] platform_device_add+0x184/0x240
[ 0.217184] mfd_add_device+0x3e8/0x4c0
[ 0.217195] devm_mfd_add_devices+0xa0/0x118
[ 0.217202] bcm2835_pm_probe+0x144/0x1d8
[ 0.217210] platform_probe+0x68/0xc4
[ 0.217217] really_probe+0x148/0x2b0
[ 0.217224] __driver_probe_device+0x78/0x128
[ 0.217230] driver_probe_device+0x40/0xdc
[ 0.217237] __driver_attach+0x90/0x160
[ 0.217243] bus_for_each_dev+0x64/0xa4
[ 0.217249] driver_attach+0x24/0x30
[ 0.217256] bus_add_driver+0xe4/0x208
[ 0.217262] driver_register+0x5c/0x124
[ 0.217269] __platform_driver_register+0x28/0x34
[ 0.217276] bcm2835_pm_driver_init+0x1c/0x28
[ 0.217286] do_one_initcall+0x6c/0x1fc
[ 0.217294] kernel_init_freeable+0x208/0x2e4
[ 0.217306] kernel_init+0x28/0x1e4
[ 0.217313] ret_from_fork+0x10/0x20
[ 0.217320] ---[ end trace 0000000000000000 ]---
This issue was introduced in v6.6.69 with the following backport:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=36a6e8aeae4a41767bb59f56b100c8cc9ffae2cb
The upstream patch has been adapted to v6.6:
f64f610ec6
More info: https://github.com/raspberrypi/linux/issues/6777
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry picked from commit f65c44f67f5d435cb552310f2d455fbfdac935c2)
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
-
OpenWrt Routing: Packages specifically focused on (mesh) routing.
-
OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0