diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index e423def..d97d663 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -1,5 +1,7 @@
 include include/asm-generic/Kbuild.asm
 
+generic-y += clkdev.h
+
 header-y += compiler.h
 header-y += console.h
 header-y += fpu.h
diff --git a/arch/avr32/include/asm/Kbuild b/arch/avr32/include/asm/Kbuild
index 3136628..e3ba7bc 100644
--- a/arch/avr32/include/asm/Kbuild
+++ b/arch/avr32/include/asm/Kbuild
@@ -1,3 +1,5 @@
 include include/asm-generic/Kbuild.asm
 
+generic-y	+= clkdev.h
+
 header-y	+= cachectl.h
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 04d02a5..a8eab26 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -7,3 +7,5 @@
 header-y += etraxgpio.h
 header-y += rs485.h
 header-y += sync_serial.h
+
+generic-y += clkdev.h
diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild
index 5be6663..13cd044 100644
--- a/arch/frv/include/asm/Kbuild
+++ b/arch/frv/include/asm/Kbuild
@@ -2,3 +2,4 @@
 
 header-y += registers.h
 header-y += termios.h
+generic-y += clkdev.h
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index c68e168..0e152a9 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -1 +1,3 @@
 include include/asm-generic/Kbuild.asm
+
+generic-y	+= clkdev.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 0690642..3364b696 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -7,6 +7,7 @@
 generic-y += auxvec.h
 generic-y += bug.h
 generic-y += bugs.h
+generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += current.h
 generic-y += device.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index d4eb938..58f3d14 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -13,3 +13,4 @@
 header-y += rse.h
 header-y += ucontext.h
 header-y += ustack.h
+generic-y += clkdev.h
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index c68e168..0e152a9 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1 +1,3 @@
 include include/asm-generic/Kbuild.asm
+
+generic-y	+= clkdev.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index a74e5d9..bfe675f 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -2,6 +2,7 @@
 header-y += cachectl.h
 
 generic-y += bitsperlong.h
+generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += device.h
 generic-y += emergency-restart.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index db5294c..48510f6 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -1,3 +1,4 @@
 include include/asm-generic/Kbuild.asm
 
 header-y  += elf.h
+generic-y += clkdev.h
diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild
index c68e168..0d20f55 100644
--- a/arch/mn10300/include/asm/Kbuild
+++ b/arch/mn10300/include/asm/Kbuild
@@ -1 +1,3 @@
 include include/asm-generic/Kbuild.asm
+
+generic-y += clkdev.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 0922959..7140b6b 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -11,6 +11,7 @@
 generic-y += bugs.h
 generic-y += cacheflush.h
 generic-y += checksum.h
+generic-y += clkdev.h
 generic-y += cmpxchg.h
 generic-y += cmpxchg-local.h
 generic-y += cputime.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 4383707..0587f62 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,4 +1,5 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += pdc.h
+generic-y += clkdev.h
 generic-y += word-at-a-time.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 7e313f1..ace53db 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -35,4 +35,5 @@
 header-y += ucontext.h
 header-y += unistd.h
 
+generic-y += clkdev.h
 generic-y += rwsem.h
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 287d7bb..f18fc79 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -13,3 +13,5 @@
 header-y += ucontext.h
 header-y += vtoc.h
 header-y += zcrypt.h
+
+generic-y += clkdev.h
diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
index b367abd..ec697ae 100644
--- a/arch/score/include/asm/Kbuild
+++ b/arch/score/include/asm/Kbuild
@@ -1,3 +1,5 @@
 include include/asm-generic/Kbuild.asm
 
 header-y +=
+
+generic-y += clkdev.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 67f83e0..f80ff93 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -17,6 +17,7 @@
 header-y += utrap.h
 header-y += watchdog.h
 
+generic-y += clkdev.h
 generic-y += div64.h
 generic-y += local64.h
 generic-y += irq_regs.h
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
index 5bd7199..ea2e8ea 100644
--- a/arch/tile/include/asm/Kbuild
+++ b/arch/tile/include/asm/Kbuild
@@ -8,6 +8,7 @@
 
 generic-y += bug.h
 generic-y += bugs.h
+generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += div64.h
 generic-y += emergency-restart.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index fff2435..0f6e7b3 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -1,4 +1,4 @@
 generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h
 generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h
 generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h
-generic-y += switch_to.h
+generic-y += switch_to.h clkdev.h
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 34b789b..123c59a 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -4,6 +4,7 @@
 generic-y += auxvec.h
 generic-y += bitsperlong.h
 generic-y += bugs.h
+generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += current.h
 generic-y += device.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 1595d68..66e5f0e 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -22,3 +22,9 @@
 header-y += ucontext.h
 header-y += vm86.h
 header-y += vsyscall.h
+
+genhdr-y += unistd_32.h
+genhdr-y += unistd_64.h
+genhdr-y += unistd_x32.h
+
+generic-y += clkdev.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index c68e168..0d20f55 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -1 +1,3 @@
 include include/asm-generic/Kbuild.asm
+
+generic-y += clkdev.h
diff --git a/include/asm-generic/clkdev.h b/include/asm-generic/clkdev.h
new file mode 100644
index 0000000..90a32a6
--- /dev/null
+++ b/include/asm-generic/clkdev.h
@@ -0,0 +1,28 @@
+/*
+ *  include/asm-generic/clkdev.h
+ *
+ * Based on the ARM clkdev.h:
+ *  Copyright (C) 2008 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Helper for the clk API to assist looking up a struct clk.
+ */
+#ifndef __ASM_CLKDEV_H
+#define __ASM_CLKDEV_H
+
+#include <linux/slab.h>
+
+struct clk;
+
+static inline int __clk_get(struct clk *clk) { return 1; }
+static inline void __clk_put(struct clk *clk) { }
+
+static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
+{
+	return kzalloc(size, GFP_KERNEL);
+}
+
+#endif
diff --git a/include/asm-generic/xor.h b/include/asm-generic/xor.h
index 6028fb8..b4d8432 100644
--- a/include/asm-generic/xor.h
+++ b/include/asm-generic/xor.h
@@ -693,7 +693,7 @@
 	.do_5 = xor_32regs_5,
 };
 
-static struct xor_block_template xor_block_8regs_p = {
+static struct xor_block_template xor_block_8regs_p __maybe_unused = {
 	.name = "8regs_prefetch",
 	.do_2 = xor_8regs_p_2,
 	.do_3 = xor_8regs_p_3,
@@ -701,7 +701,7 @@
 	.do_5 = xor_8regs_p_5,
 };
 
-static struct xor_block_template xor_block_32regs_p = {
+static struct xor_block_template xor_block_32regs_p __maybe_unused = {
 	.name = "32regs_prefetch",
 	.do_2 = xor_32regs_p_2,
 	.do_3 = xor_32regs_p_3,