Obsolete ledtrig_audio_get feature.

[dontknowhy]

Describe the bug
A clear and concise description of what the bug is.
This module uses a feature which is deleted from mainline kernel since Linux 6.10 .
So I can't compile huawei-wmi for Linux kernel 6.10
Feature: ledtrig_audio_get

To Reproduce

$ env LANG=C sudo /boot/build-kernel.sh install
  INSTALL /boot
run-parts: executing /etc/kernel/postinst.d/dkms 6.10.0-Luo520-xanmod1 /boot/vmlinuz-6.10.0-Luo520-xanmod1
dkms: running auto installation service for kernel 6.10.0-Luo520-xanmod1.
Sign command: /lib/modules/6.10.0-Luo520-xanmod1/build/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub

Building module:
Cleaning build area...
Building module(s)...(bad exit status: 2)
Failed command:
make -j16 KERNELRELEASE=6.10.0-Luo520-xanmod1 -C /lib/modules/6.10.0-Luo520-xanmod1/build M=/var/lib/dkms/huawei-wmi/3.4/build CC=clang LD=ld.lld
Error! Bad return status for module build on kernel: 6.10.0-Luo520-xanmod1 (x86_64)
Consult /var/lib/dkms/huawei-wmi/3.4/build/make.log for more information.
dkms autoinstall on 6.10.0-Luo520-xanmod1/x86_64 failed for huawei-wmi(10)
Error! One or more modules failed to install during autoinstall.
Refer to previous errors for more information.
dkms: autoinstall for kernel: 6.10.0-Luo520-xanmod1 failed!
run-parts: /etc/kernel/postinst.d/dkms exited with return code 11
make[1]: *** [arch/x86/Makefile:302: install] Error 11
make: *** [Makefile:240: __sub-make] Error 2

Screenshots
If applicable, add screenshots to help explain your problem.
Thanks to the amazing GFW.I can't upload any image.

$ cat /var/lib/dkms/huawei-wmi/3.4/build/make.log
DKMS make.log for huawei-wmi-3.4 for kernel 6.10.0-Luo520-xanmod1 (x86_64)
Tue Jul 16 13:42:28 CST 2024
make[2]: warning: -j16 forced in submake: resetting jobserver mode.
  CC [M]  /var/lib/dkms/huawei-wmi/3.4/build/huawei-wmi.o
/var/lib/dkms/huawei-wmi/3.4/build/huawei-wmi.c:400:28: error: call to undeclared function 'ledtrig_audio_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  400 |         huawei->cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
      |                                   ^
1 error generated.
make[3]: *** [scripts/Makefile.build:244: /var/lib/dkms/huawei-wmi/3.4/build/huawei-wmi.o] Error 1
make[2]: *** [Makefile:2087: /var/lib/dkms/huawei-wmi/3.4/build] Error 2

(please complete the following information):
acpidump, dmidecode, dmesg and ALSA log will upload later.

• Kernel Linux sb-debian 6.9.9-Luo520-xanmod1 #2 SMP PREEMPT_DYNAMIC Sat Jul 13 13:56:03 CST 2024 x86_64 GNU/Linux
• Distro Debian GNU/Linux trixie trixie/sid x86_64
• Loaded WMI modules:

ledtrig_audio          12288  2 snd_ctl_led,huawei_wmi
sparse_keymap          12288  1 huawei_wmi
wmi_bmof               12288  0

[dontknowhy]

Pastebin because the upload feature is gone.
dmesg but base64 encoded
alsa info

[vikanezrimaya]

Per this kernel patch it may be that we can just remove the offending line and it'll work fine. I'll try this on my Matebook 16s and see if it works properly.

[vikanezrimaya]

Can confirm successfully building with the offending line removed. We can just take the patch that upstream applied and apply it to our version.