Re: [PATCH 0/3] Add a new LED trigger for kernel panics (and use it)

Arnd Bergmann
2016-03-29T20:45:43Z

On Tuesday 29 March 2016 17:35:46 Ezequiel Garcia wrote:
> This patchset adds a very simple kernel panic LED trigger,
> by hooking into panic_blink. I've tested this trigger on
> ARM Armada XP OpenBlocks AX3-4 machine.
>
> The trigger is then used to replace the open-coded panic_blink
> usage in GTA02 board.
>
> Note that I don't have a GTA02 board, so the last patch is only
> built tested.
>
> Ezequiel Garcia (3):
> leds: trigger: Introduce a kernel panic LED trigger
> ARM: configs: Enable panic LED trigger on s3c2410
> ARM: s3c24xx: Use the panic LED trigger for GTA02
>
> arch/arm/configs/s3c2410_defconfig | 1 +
> arch/arm/mach-s3c24xx/mach-gta02.c | 35 ++++++++++++++++-------------------
> drivers/leds/trigger/Kconfig | 7 +++++++
> drivers/leds/trigger/Makefile | 1 +
> drivers/leds/trigger/ledtrig-panic.c | 30 ++++++++++++++++++++++++++++++
> 5 files changed, 55 insertions(+), 19 deletions(-)
> create mode 100644 drivers/leds/trigger/ledtrig-panic.c

Now we just need to port this 13-year old patch:

https://lwn.net/Articles/21857/

;-)

Arnd