[Bug 2045034] [NEW] [SRU] vpoll-dkms FTFBS with linux 6.5 in jammy

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Sudip Mukherjee (sudipmuk):

[Impact]

libvpoll-eventfd is completely unusable as it will fail to install for a
Jammy user with the following error:

./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 *
/var/lib/dkms/vpoll/0.1/build/vpoll.c:117:44: note: in expansion of macro ‘THIS_MODULE’

[Test case]

A simple testcase to confirm the build failure is fixed

 $ sudo apt install vpoll-dkms

Another testcase to test the basic sanity of the package to confirm its working:
1. Build the attached test_vpoll.c
2. Execute it, it will use the kernel driver for execution.

[ Where problems could occur ]

Users of vpoll may experience regressions (restricted to this module)
using the new 6.5 kernel.

[ Other Info ]

Backport the changes in the vpoll kernel module to properly support the
new linux 6.5 kernel ABI.

[ Original Bug Description ]

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: vpoll-dkms 0.1-2ubuntu1
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 13:50:29 2023
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: libvpoll-eventfd
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: libvpoll-eventfd (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: libvpoll-eventfd (Ubuntu Jammy)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug jammy patch uec-images
-- 
[SRU] vpoll-dkms FTFBS with linux 6.5 in jammy
https://bugs.launchpad.net/bugs/2045034
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