staging/ldir/config, branch master

kernel: add MODULE_ALLOW_BTF_MISMATCH option

2023-05-18T14:17:52Z

BTF mismatch can occur for a separately-built module even when the ABI is otherwise compatible and nothing else would prevent successfully loading. Add a new config to control how mismatches are handled. By default, preserve the current behavior of refusing to load the module. If MODULE_ALLOW_BTF_MISMATCH is enabled, load the module but ignore its BTF information. Signed-off-by: Tianling Shen

treewide: cleanup kernel symbol references

2023-05-12T11:02:44Z

We only use 5.15 kernel. So remove all those unnecessary symbols referencing 5.10 or 5.15 kernel. Can be found with: git grep -E 'LINUX_5_1(0|5)' Note that we remove the dependency from "sound-soc-chipdip-dac" instead of removing the complete kernel package. The 5.15 version bump forgot to delete the "@LINUX_5_10" dependency. The kernel package is still needed in 5.15 kernel. Signed-off-by: Nick Hainke

kernel: improve handling of CONFIG_IO_URING

2023-05-03T17:26:17Z

Kernel setting CONFIG_IO_URING supports high-performance I/O for file access and servers, generally for more performant platforms, and adds ~45 KB to kernel sizes. The need for this on less "beefy" devices is questionable, as is the size cost considering many platforms have kernel size limits which require tricky repartitioning if outgrown. The size cost is also large relative to the ~180 KB bump expected between major OpenWRT kernel releases. No OpenWrt packages have hard dependencies on this; samba4 and mariadb can take advantage if available (+KERNEL_IO_URING:liburing) but otherwise build and work fine. Since CONFIG_IO_URING is already managed via the KERNEL_IO_URING setting in Config-kernel.in (default Y), remove it from those target configs which unconditionally enable it, and update the defaults to enable it conditionally only on more powerful 64-bit x86 and arm devices. It may still be manually enabled as needed for high-performance custom builds. Signed-off-by: Tony Ambardar

build: add a config knob to enable LTO for all packages

2023-03-21T17:28:24Z

This enables LTO for all packages which haven't opted-out. Signed-off-by: Andre Heider

build: add a config knob to enable gc-sections for all packages

2023-03-21T17:28:23Z

This enables the linker's garbage collection for all packages which haven't opted-out. Signed-off-by: Andre Heider

kernel: Add CONFIG_KERNEL_HARDLOCKUP_DETECTOR

2023-03-19T17:44:46Z

Make it possible to change the kernel configuration option CONFIG_HARDLOCKUP_DETECTOR from OpenWrt. Signed-off-by: Hauke Mehrtens

kernel: set default for KERNEL_BPF_KPROBE_OVERRIDE

2023-03-05T16:36:01Z

Without the default value this still causes a missing symbol. Disable by default as it depends on FUNCTION_ERROR_INJECTION, which is disabled in the generic config and we don't have a build symbol to enable that. Fixes: 500c37c56ff6 ("kernel: add missing symbol") Signed-off-by: Stijn Tintel

build: fix for sourcing targets image config installed via feeds

2023-02-26T21:22:48Z

Sourcing of image/Config.in will not happen When a target is installed from target/linux/feeds/ Signed-off-by: Prasun Maiti Acked-by: Petr Štetiar

kernel: set default values for ARM low level debugging symbols

2023-02-08T15:21:05Z

Set default values for KERNEL_DEBUG_LL and KERNEL_DEBUG_LL_UART_NONE again as both of these symbols are non visible if KERNEL_EARLY_PRINTK is not selected and KConfig wont write their value to .config. This usually is the intended behaviour, but in OpenWrt we are relying on the KConfig to set these and disable the debug console settings that multiple targets like mvebu have set in their kernel config. This was the behaviour before removing all of the "default n" settings as KConfig by default considers symbols disabled but they are not visible anymore and thus their value is not set in .config and build system then later does not override the values from target kernel config. So, to restore the behaviour to the previous one lets a default value for KERNEL_DEBUG_LL and KERNEL_DEBUG_LL_UART_NONE. Fixes: 8bc72ea7be39 ("treewide: strip useless default n Kconfig lines") Tested-by: Georgi Valkov Signed-off-by: Robert Marko

treewide: strip useless `default n` Kconfig lines

2023-02-03T11:50:15Z

Kconfig docs say: > The default value deliberately defaults to 'n' in order to avoid > bloating the build. Apply this rule everywhere, to avoid more cloning of bad examples Signed-off-by: Tony Butler