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[Timo Aaltonen <2111377@xxxxxxxxxxxxxxxxxx>]

The verification of the Stable Release Update for sl-modem has completed
successfully and the package is now being released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/2111377

Title:
  sl-modem-dkms FTBS in Noble with the linux-6.14-hwe kernel

Status in sl-modem package in Ubuntu:
  Invalid
Status in sl-modem source package in Noble:
  Fix Released

Bug description:
  [ Impact ]

  DKMS make.log for sl-modem-2.9.11~20110321 for kernel 6.14.0-15-generic (x86_64)
  Wed May 21 01:28:44 UTC 2025
  make: Entering directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
   obj-m= slusb.o
   slamr-objs=amrmo_init.o sysdep_amr.o amrlibs.o
  make modules -C /lib/modules/6.14.0-15-generic/build M=/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers
  make[1]: Entering directory '/usr/src/linux-headers-6.14.0-15-generic'
  make[2]: Entering directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
  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]  st7554.o
  st7554.c:1047:20: error: ‘no_llseek’ undeclared here (not in a function); did you mean ‘noop_llseek’?
   1047 |         .llseek =  no_llseek,
        |                    ^~~~~~~~~
        |                    noop_llseek
  make[4]: *** [/usr/src/linux-headers-6.14.0-15-generic/scripts/Makefile.build:207: st7554.o] Error 1
  make[3]: *** [/usr/src/linux-headers-6.14.0-15-generic/Makefile:1999: .] Error 2
  make[2]: *** [/usr/src/linux-headers-6.14.0-15-generic/Makefile:251: __sub-make] Error 2
  make[2]: Leaving directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
  make[1]: *** [Makefile:251: __sub-make] Error 2
  make[1]: Leaving directory '/usr/src/linux-headers-6.14.0-15-generic'
  make: *** [Makefile:138: all] Error 2
  make: Leaving directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'

  [ Test case ]

  Install the latest linux-6.14 kernel on Noble:

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

  Install sl-modem-dkms

  $ sudo apt install sl-modem-dkms

  Load the modules:

  $ sudo modprobe slusb
  $ sudo modprobe ungrab-winmodem

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

  [ Fix ]

  Apply patch from Debian (https://salsa.debian.org/debian/sl-
  modem/-/blob/master/debian/patches/fix-linux-6.12-ftbfs.patch):

  * debian/patches/fix-linux-6.12-ftbfs.patch

  [ Regression potential ]

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

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