[PATCH] declare smp_call_function_single in generic code
smp_call_function_single() needs to be visible in non-SMP builds, to fix:
arch/x86_64/kernel/vsyscall.c:283: warning: implicit declaration of function 'smp_call_function_single'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 5164998..7ba23ec 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -99,6 +99,13 @@
static inline void smp_send_reschedule(int cpu) { }
#define num_booting_cpus() 1
#define smp_prepare_boot_cpu() do {} while (0)
+static inline int smp_call_function_single(int cpuid, void (*func) (void *info),
+ void *info, int retry, int wait)
+{
+ /* Disable interrupts here? */
+ func(info);
+ return 0;
+}
#endif /* !SMP */