diff --git a/config/spl-build.m4 b/config/spl-build.m4
index e8ecbc654..ea25e206f 100644
--- a/config/spl-build.m4
+++ b/config/spl-build.m4
@@ -26,7 +26,6 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [
 	SPL_AC_TYPE_ATOMIC64_CMPXCHG
 	SPL_AC_TYPE_ATOMIC64_XCHG
 	SPL_AC_TYPE_UINTPTR_T
-	SPL_AC_3ARGS_INIT_WORK
 	SPL_AC_2ARGS_REGISTER_SYSCTL
 	SPL_AC_SET_SHRINKER
 	SPL_AC_3ARGS_SHRINKER_CALLBACK
@@ -870,26 +869,6 @@ AC_DEFUN([SPL_AC_TYPE_UINTPTR_T],
 	])
 ])
 
-dnl #
-dnl # 2.6.20 API change,
-dnl # INIT_WORK use 2 args and not store data inside
-dnl #
-AC_DEFUN([SPL_AC_3ARGS_INIT_WORK],
-	[AC_MSG_CHECKING([whether INIT_WORK wants 3 args])
-	SPL_LINUX_TRY_COMPILE([
-		#include <linux/workqueue.h>
-	],[
-		struct work_struct work __attribute__ ((unused));
-		INIT_WORK(&work, NULL, NULL);
-	],[
-		AC_MSG_RESULT(yes)
-		AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
-		          [INIT_WORK wants 3 args])
-	],[
-		AC_MSG_RESULT(no)
-	])
-])
-
 dnl #
 dnl # 2.6.21 API change,
 dnl # 'register_sysctl_table' use only one argument instead of two
diff --git a/include/linux/workqueue_compat.h b/include/linux/workqueue_compat.h
deleted file mode 100644
index a92800ce5..000000000
--- a/include/linux/workqueue_compat.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*****************************************************************************\
- *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
- *  Copyright (C) 2007 The Regents of the University of California.
- *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
- *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
- *  UCRL-CODE-235197
- *
- *  This file is part of the SPL, Solaris Porting Layer.
- *  For details, see <http://github.com/behlendorf/spl/>.
- *
- *  The SPL is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  The SPL is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
-\*****************************************************************************/
-
-#ifndef _SPL_WORKQUEUE_COMPAT_H
-#define _SPL_WORKQUEUE_COMPAT_H
-
-#include <linux/workqueue.h>
-#include <sys/types.h>
-
-#ifdef HAVE_3ARGS_INIT_WORK
-
-#define delayed_work			work_struct
-
-#define spl_init_work(wq, cb, d)	INIT_WORK((wq), (void *)(cb), \
-						  (void *)(d))
-#define spl_init_delayed_work(wq,cb,d)	INIT_WORK((wq), (void *)(cb), \
-						  (void *)(d))
-#define spl_get_work_data(d, t, f)	(t *)(d)
-
-#else
-
-#define spl_init_work(wq, cb, d)	INIT_WORK((wq), (void *)(cb));
-#define spl_init_delayed_work(wq,cb,d)	INIT_DELAYED_WORK((wq), (void *)(cb));
-#define spl_get_work_data(d, t, f)	(t *)container_of(d, t, f)
-
-#endif /* HAVE_3ARGS_INIT_WORK */
-
-#endif  /* _SPL_WORKQUEUE_COMPAT_H */
diff --git a/include/sys/types.h b/include/sys/types.h
index 35905eb97..b867be111 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -34,7 +34,6 @@
 #include <linux/time_compat.h>
 #include <linux/bitops_compat.h>
 #include <linux/smp_compat.h>
-#include <linux/workqueue_compat.h>
 #include <linux/kallsyms_compat.h>
 #include <linux/mutex_compat.h>
 #include <linux/module_compat.h>