openafs-modules-dkms 1.6.7-1ubuntu1: openafs kernel module failed to build

[arindam]

Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 3.16.0-41-generic /boot/vmlinuz-3.16.0-41-generic
Error! Bad return status for module build on kernel: 3.16.0-41-generic (x86_64)
Consult /var/lib/dkms/openafs/1.6.7/build/make.log for more information.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: openafs-modules-dkms 1.6.7-1ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11
Uname: Linux 3.16.0-41-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
DKMSKernelVersion: 3.16.0-41-generic
Date: Mon Jun 22 12:37:24 2015
DuplicateSignature: dkms:openafs-modules-dkms:1.6.7-1ubuntu1:/var/lib/dkms/openafs/1.6.7/build/src/libafs/MODLOAD-3.16.0-41-generic-SP/osi_vnodeops.c:815:19: error: ‘generic_file_splice_write’ undeclared here (not in a function)
InstallationDate: Installed on 2015-05-22 (30 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
PackageVersion: 1.6.7-1ubuntu1
SourcePackage: openafs
Title: openafs-modules-dkms 1.6.7-1ubuntu1: openafs kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Clément (clpi)]

Same bug here.

[PAVUK (marek-antozi)]

This fixes building process:

--- ./src/afs/LINUX/osi_vnodeops.c.orig 2014-04-03 16:00:15.000000000 +0200
+++ ./src/afs/LINUX/osi_vnodeops.c 2015-08-21 18:28:19.761674316 +0200
@@ -812,7 +812,7 @@
   .sendfile = generic_file_sendfile,
 #endif
 #if defined(STRUCT_FILE_OPERATIONS_HAS_SPLICE)
- .splice_write = generic_file_splice_write,
+ .splice_write = iter_file_splice_write,
   .splice_read = generic_file_splice_read,
 #endif
   .release = afs_linux_release,

Needs to be verified if functionality is not broken.