bcmwl-kernel-source (not installed): bcmwl kernel module failed to build [error: implicit declaration of function ‘init_timer’]

[Minhaj Uddin]

This error message pops up after every system start but "bcmwl-kernel-source" is already installed and no update or upgrade seems to fix it.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.3
ProcVersionSignature: Ubuntu 4.15.0-38.41~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-38-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
DKMSKernelVersion: 4.15.0-38-generic
Date: Sun Nov 11 22:59:15 2018
DuplicateSignature: dkms:bcmwl-kernel-source:(not installed):/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration]
InstallationDate: Installed on 2018-11-11 (0 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageVersion: (not installed)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.5
 apt 1.2.29
SourcePackage: bcmwl
Title: bcmwl-kernel-source (not installed): bcmwl kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1757008, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.