iscsitarget-dkms 1.4.20.3+svn502-2ubuntu4: iscsitarget kernel module failed to build

[dracobuild]

Using apt-get, I was trying to install iscsi support to access a share on network. Crash occurred immediately after install.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: iscsitarget-dkms 1.4.20.3+svn502-2ubuntu4
ProcVersionSignature: Ubuntu 4.8.0-41.44~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-41-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
DKMSKernelVersion: 4.8.0-41-generic
Date: Sun Mar 26 22:00:04 2017
DuplicateSignature: dkms:iscsitarget-dkms:1.4.20.3+svn502-2ubuntu4:/var/lib/dkms/iscsitarget/1.4.20.3+svn502/build/kernel/iscsi.h:274:19: error: field ‘rx_hash’ has incomplete type
InstallationDate: Installed on 2017-03-22 (5 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
PackageArchitecture: all
PackageVersion: 1.4.20.3+svn502-2ubuntu4
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: iscsitarget
Title: iscsitarget-dkms 1.4.20.3+svn502-2ubuntu4: iscsitarget kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)