[Bug 2134577] Re: rtpengine-kernel-dkms FTBS in Noble with the linux-6.17 kernel

[Massimiliano Pellizzer]

Uploaded after adding the following line to the changelog, thanks.

- debian/patches/0003-MT-55283-use-ccflags-instead-of-EXTRA_CFLAGS.patch

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

Status in rtpengine package in Ubuntu:
  Invalid
Status in rtpengine source package in Noble:
  In Progress
Status in rtpengine source package in Questing:
  Invalid
Status in rtpengine source package in Resolute:
  Invalid

Bug description:
  [ Impact ]

  DKMS make.log for rtpengine-11.5.1.18 for kernel 6.17.0-7-generic (x86_64)
  Wed Dec 10 22:10:34 UTC 2025
  make: Entering directory '/usr/src/linux-headers-6.17.0-7-generic'
  make[1]: Entering directory '/var/lib/dkms/rtpengine/11.5.1.18/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]  xt_RTPENGINE.o
  xt_RTPENGINE.c:39:10: fatal error: linux/netfilter/xt_RTPENGINE.h: No such file or directory
     39 | #include <linux/netfilter/xt_RTPENGINE.h>
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  compilation terminated.
  make[3]: *** [/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: xt_RTPENGINE.o] Error 1
  make[2]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:2016: .] Error 2
  make[1]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:248: __sub-make] Error 2
  make[1]: Leaving directory '/var/lib/dkms/rtpengine/11.5.1.18/build'
  make: *** [Makefile:248: __sub-make] Error 2
  make: Leaving directory '/usr/src/linux-headers-6.17.0-7-generic'

  [ 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 rtpengine-kernel-dkms:

  $ sudo apt install rtpengine-kernel-dkms

  Module built and installed successfully.

  Load the module:

  $ sudo modprobe xt_RTPENGINE

  Module loaded successfully.

  The same procedure must be repeated on linux-6.8 and linux-6.14 to
  test for possible regressions.

  [ Fix ]

  Upstream patches from rtpengine
  (https://github.com/sipwise/rtpengine/):

  -debian/patches/0002-MT-55283-deprectate-RE_EXTERNAL-switch.patch
  -debian/patches/0003-MT-55283-use-ccflags-instead-of-EXTRA_CFLAGS.patch

  [ Regression potential ]

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

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