xtrx-dkms FTBS with linux 6.5 on jammy

[Andrea Righi]

[Impact]

./include/linux/export.h:29:22: error: passing argument 1 of ‘class_create’ from incompatible pointer type [-Werror=incompatible-pointer-types]
   29 | #define THIS_MODULE (&__this_module)
      | ~^~~~~~~~~~~~~~~
      | |
      | struct module *

[Test case]

 $ sudo apt install xtrx-dkms

[Fix]

Backport changes in the xtrx module from mantic to properly support the new linux 6.5 ABI.

[Regression potential]

We may experience regressions in systems that are using this module (SDR radio capability), especially with the new 6.5 kernel.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xtrx-dkms 0.0.1+git20190320.5ae3a3e-3ubuntu1~22.04.2
ProcVersionSignature: User Name 6.5.0-14.14~22.04.1-generic 6.5.3
Uname: Linux 6.5.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CloudArchitecture: x86_64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: config-disk (/dev/vdb)
Date: Tue Nov 28 14:10:44 2023
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: xtrx-dkms
UpgradeStatus: No upgrade log present (probably fresh install)

[Andrea Righi (arighi)]

debdiff in attach allows to build xtrx-dkms with linux 6.5 in jammy

[Andrea Righi (arighi)]

Test result with the new 6.5 kernel:

Building for 6.5.0-14-generic
Building initial module for 6.5.0-14-generic
EFI variables are not supported on this system
/sys/firmware/efi/efivars not found, aborting.
Done.

xtrx.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.5.0-14-generic/updates/dkms/

Test result with the GA kernel 5.15:

Building for 5.15.0-91-generic
Building initial module for 5.15.0-91-generic
EFI variables are not supported on this system
/sys/firmware/efi/efivars not found, aborting.
Done.

xtrx.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-91-generic/updates/dkms/

[xtrx-fix (xtrx-fix)]

Could you rebuild the package? The fix is now upstream in github included and all merged.

Manual build using this is also working fine

sudo apt install dkms gcc-12 g++-12
git clone https://github.com/myriadrf/xtrx_linux_pcie_drv.git xtrx-0.0.1-2
cd xtrx-0.0.1-2
sudo cp -R . /usr/src/xtrx-0.0.1-2
sudo dkms add -m xtrx -v 0.0.1-2
sudo dkms build -m xtrx -v 0.0.1-2
sudo dkms install -m xtrx -v 0.0.1-2
sudo modprobe xtrx
sudo cp 50-xtrx.rules /etc/udev/rules.d/
sudo udevadm control --reload-rules && sudo udevadm trigger