[PATCH 3.19.y-ckt 019/170] cpu: Provide smpboot_thread_init() on !CONFIG_SMP kernels as well

[Kamal Mostafa]

3.19.8-ckt18 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ingo Molnar <mingo at kernel.org>

commit 590ee7dbd569a012df705a5204fc5f1066f52b8c upstream.

Now that we are using smpboot_thread_init() in init/main.c as well,
provide it for !CONFIG_SMP as well.

This addresses a !CONFIG_SMP build failure.

Cc: Paul E. McKenney <paulmck at linux.vnet.ibm.com>
Cc: Borislav Petkov <bp at suse.de>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: Linus Torvalds <torvalds at linux-foundation.org>
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Ingo Molnar <mingo at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 include/linux/cpu.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index f1b8f4a..5bc8280 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -210,6 +210,10 @@ static inline void cpu_notifier_register_done(void)
 {
 }
 
+static inline void smpboot_thread_init(void)
+{
+}
+
 #endif /* CONFIG_SMP */
 extern struct bus_type cpu_subsys;
 
-- 
2.7.4