spl-dkms 0.6.5.4-0ubuntu2: spl kernel module failed to build

[Lars Bahner]

This is probably because I installed a mainline kernel. Maybe it's of interest - maybe not.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: spl-dkms 0.6.5.4-0ubuntu2
Uname: Linux 4.5.0-040500rc7-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
DKMSKernelVersion: 4.5.0-040500rc7-generic
Date: Mon Mar 7 13:15:03 2016
DuplicateSignature: dkms:spl-dkms:0.6.5.4-0ubuntu2:/var/lib/dkms/spl/0.6.5.4/build/include/sys/types.h:61:20: error: conflicting types for ‘pfn_t’
InstallationDate: Installed on 2016-01-07 (59 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageVersion: 0.6.5.4-0ubuntu2
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.4
SourcePackage: spl-linux
Title: spl-dkms 0.6.5.4-0ubuntu2: spl kernel module failed to build
UpgradeStatus: Upgraded to xenial on 2016-03-01 (6 days ago)