[Bug 2133753] Re: digimend-dkms FTBS in Noble with the linux-6.17-hwe kernel

[Massimiliano Pellizzer]

** Changed in: digimend-dkms (Ubuntu)
       Status: New => Invalid

** Also affects: digimend-dkms (Ubuntu Resolute)
   Importance: Undecided
       Status: Invalid

** Also affects: digimend-dkms (Ubuntu Questing)
   Importance: Undecided
       Status: New

** Changed in: digimend-dkms (Ubuntu Questing)
       Status: New => Invalid

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Title:
  digimend-dkms FTBS in Noble with the linux-6.17-hwe kernel

Status in digimend-dkms package in Ubuntu:
  Invalid
Status in digimend-dkms source package in Noble:
  New
Status in digimend-dkms source package in Questing:
  Invalid
Status in digimend-dkms source package in Resolute:
  Invalid

Bug description:
  [ Impact ]

  DKMS make.log for digimend-12 for kernel 6.17.0-7-generic (x86_64)
  Tue Dec  2 22:08:55 UTC 2025
  make -C /lib/modules/6.17.0-7-generic/build M=/var/lib/dkms/digimend/12/build modules
  make[1]: Entering directory '/usr/src/linux-headers-6.17.0-7-generic'
  make[2]: Entering directory '/var/lib/dkms/digimend/12/build'
  warning: the compiler differs from the one used to build the kernel
    The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
    You are using:           gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
    CC [M]  hid-kye.o
    CC [M]  hid-uclogic-core.o
    CC [M]  hid-uclogic-rdesc.o
    CC [M]  hid-uclogic-params.o
    CC [M]  hid-polostar.o
  hid-uclogic-core.c: In function ‘uclogic_remove’:
  hid-uclogic-core.c:495:9: error: implicit declaration of function ‘del_timer_sync’ [-Werror=implicit-function-declaration]
    495 |         del_timer_sync(&drvdata->inrange_timer);
        |         ^~~~~~~~~~~~~~
  hid-uclogic-params.c: In function ‘uclogic_params_init’:
  hid-uclogic-params.c:1685:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
   1685 |                 if (bNumInterfaces != 3) {
        |                    ^
  hid-uclogic-params.c:1703:9: note: here
   1703 |         case VID_PID(USB_VENDOR_ID_HUION,
        |         ^~~~
    CC [M]  hid-viewsonic.o
  cc1: some warnings being treated as errors
  make[4]: *** [/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: hid-uclogic-core.o] Error 1
  make[4]: *** Waiting for unfinished jobs....
  make[3]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:2016: .] Error 2
  make[2]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:248: __sub-make] Error 2
  make[2]: Leaving directory '/var/lib/dkms/digimend/12/build'
  make[1]: *** [Makefile:248: __sub-make] Error 2
  make[1]: Leaving directory '/usr/src/linux-headers-6.17.0-7-generic'
  make: *** [Makefile:26: modules] Error 2

  [ Test case ]

  Install the latest linux-6.17 kernel on Noble:

  $ sudo add-apt-repository ppa:canonical-kernel-team/ppa3
  $ sudo apt install linux-generic-hwe-24.04-edge

  Install digimend-dkms:

  $ sudo apt install digimend-dkms

  Module built and installed successfully.

  Load the modules:

  $ sudo modprobe hid-kye
  $ sudo modprobe hid-uclogic
  $ sudo modprobe hid-polostar
  $ sudo modprobe hid-viewsonic

  Modules loaded successfully.

  The same procedure can be repeated on linux-6.8 to test for possible
  regressions.

  [ Fix ]

  Apply patches from digimend-dkms Questing release enabling 6.17

  * debian/patches/support-linux-6.15.patch

  [ Regression potential ]

  We may experience regressions in systems that are using the digimend
  drivers, especially with kernels >= 6.8 kernel.

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