From: Andrew Morton <akpm@osdl.org>

If we're going to implement smp_call_function_single() on three architecture
with the same prototype then it should have a declaration in a
non-arch-specific header file.

Move it into <linux/smp.h>.

Cc: Stephane Eranian <eranian@hpl.hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 arch/i386/kernel/smp.c              |    4 ++--
 arch/ia64/kernel/perfmon.c          |    1 +
 arch/ia64/sn/kernel/sn2/sn_hwperf.c |    3 ++-
 arch/x86_64/kernel/smpboot.c        |    3 ++-
 include/asm-ia64/smp.h              |    2 --
 include/asm-x86_64/smp.h            |    2 --
 include/linux/smp.h                 |    3 +++
 7 files changed, 10 insertions(+), 8 deletions(-)

diff -puN arch/i386/kernel/smp.c~i386-adds-smp_call_function_single-fix arch/i386/kernel/smp.c
--- a/arch/i386/kernel/smp.c~i386-adds-smp_call_function_single-fix
+++ a/arch/i386/kernel/smp.c
@@ -683,8 +683,8 @@ __smp_call_function_single(int cpu, void
  * or is or has executed.
  */
 
-int smp_call_function_single (int cpu, void (*func) (void *info), void *info,
-	int nonatomic, int wait)
+int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+			int nonatomic, int wait)
 {
 	/* prevent preemption and reschedule on another processor */
 	int me = get_cpu();
diff -puN arch/ia64/kernel/perfmon.c~i386-adds-smp_call_function_single-fix arch/ia64/kernel/perfmon.c
--- a/arch/ia64/kernel/perfmon.c~i386-adds-smp_call_function_single-fix
+++ a/arch/ia64/kernel/perfmon.c
@@ -34,6 +34,7 @@
 #include <linux/file.h>
 #include <linux/poll.h>
 #include <linux/vfs.h>
+#include <linux/smp.h>
 #include <linux/pagemap.h>
 #include <linux/mount.h>
 #include <linux/bitops.h>
diff -puN arch/ia64/sn/kernel/sn2/sn_hwperf.c~i386-adds-smp_call_function_single-fix arch/ia64/sn/kernel/sn2/sn_hwperf.c
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c~i386-adds-smp_call_function_single-fix
+++ a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -32,9 +32,10 @@
 #include <linux/cpumask.h>
 #include <linux/smp_lock.h>
 #include <linux/nodemask.h>
+#include <linux/smp.h>
+
 #include <asm/processor.h>
 #include <asm/topology.h>
-#include <asm/smp.h>
 #include <asm/semaphore.h>
 #include <asm/uaccess.h>
 #include <asm/sal.h>
diff -puN arch/x86_64/kernel/smpboot.c~i386-adds-smp_call_function_single-fix arch/x86_64/kernel/smpboot.c
--- a/arch/x86_64/kernel/smpboot.c~i386-adds-smp_call_function_single-fix
+++ a/arch/x86_64/kernel/smpboot.c
@@ -46,9 +46,10 @@
 #include <linux/bootmem.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
-
 #include <linux/delay.h>
 #include <linux/mc146818rtc.h>
+#include <linux/smp.h>
+
 #include <asm/mtrr.h>
 #include <asm/pgalloc.h>
 #include <asm/desc.h>
diff -puN include/asm-ia64/smp.h~i386-adds-smp_call_function_single-fix include/asm-ia64/smp.h
--- a/include/asm-ia64/smp.h~i386-adds-smp_call_function_single-fix
+++ a/include/asm-ia64/smp.h
@@ -122,8 +122,6 @@ extern void __init smp_build_cpu_map(voi
 extern void __init init_smp_config (void);
 extern void smp_do_timer (struct pt_regs *regs);
 
-extern int smp_call_function_single (int cpuid, void (*func) (void *info), void *info,
-				     int retry, int wait);
 extern void smp_send_reschedule (int cpu);
 extern void lock_ipi_calllock(void);
 extern void unlock_ipi_calllock(void);
diff -puN include/asm-x86_64/smp.h~i386-adds-smp_call_function_single-fix include/asm-x86_64/smp.h
--- a/include/asm-x86_64/smp.h~i386-adds-smp_call_function_single-fix
+++ a/include/asm-x86_64/smp.h
@@ -43,8 +43,6 @@ extern void unlock_ipi_call_lock(void);
 extern int smp_num_siblings;
 extern void smp_send_reschedule(int cpu);
 void smp_stop_cpu(void);
-extern int smp_call_function_single(int cpuid, void (*func) (void *info),
-				void *info, int retry, int wait);
 
 extern cpumask_t cpu_sibling_map[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
diff -puN include/linux/smp.h~i386-adds-smp_call_function_single-fix include/linux/smp.h
--- a/include/linux/smp.h~i386-adds-smp_call_function_single-fix
+++ a/include/linux/smp.h
@@ -53,6 +53,9 @@ extern void smp_cpus_done(unsigned int m
  */
 int smp_call_function(void(*func)(void *info), void *info, int retry, int wait);
 
+int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
+				int retry, int wait);
+
 /*
  * Call a function on all processors
  */
_