diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 6d45ee5472af..196376262240 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -15,7 +15,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
 
 /* var is in discarded region: offset to particular copy we want */
 #define per_cpu(var, cpu) (*({				\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); }))
 #define __get_cpu_var(var) per_cpu(var, smp_processor_id())
 #define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id())
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h
index 495ad99c7635..9ea7f1023e57 100644
--- a/include/asm-s390/percpu.h
+++ b/include/asm-s390/percpu.h
@@ -16,7 +16,7 @@
 #if defined(__s390x__) && defined(MODULE)
 
 #define __reloc_hide(var,offset) (*({			\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	unsigned long *__ptr;				\
 	asm ( "larl %0,per_cpu__"#var"@GOTENT"		\
 	    : "=a" (__ptr) : "X" (per_cpu__##var) );	\
@@ -25,7 +25,7 @@
 #else
 
 #define __reloc_hide(var, offset) (*({				\
-	extern int simple_indentifier_##var(void);		\
+	extern int simple_identifier_##var(void);		\
 	unsigned long __ptr;					\
 	asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) );	\
 	(typeof(&per_cpu__##var)) (__ptr + (offset)); }))
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 285756010c51..5ed0ef340842 100644
--- a/include/asm-x86_64/percpu.h
+++ b/include/asm-x86_64/percpu.h
@@ -32,13 +32,13 @@
 
 /* var is in discarded region: offset to particular copy we want */
 #define per_cpu(var, cpu) (*({				\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)); }))
 #define __get_cpu_var(var) (*({				\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); }))
 #define __raw_get_cpu_var(var) (*({			\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); }))
 
 /* A macro to avoid #include hell... */
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 46ec72fa2c84..600e3d387ffc 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -19,7 +19,7 @@
  * we force a syntax error here if it isn't.
  */
 #define get_cpu_var(var) (*({				\
-	extern int simple_indentifier_##var(void);	\
+	extern int simple_identifier_##var(void);	\
 	preempt_disable();				\
 	&__get_cpu_var(var); }))
 #define put_cpu_var(var) preempt_enable()