x86: build fix for !CONFIG_SMP

Move reset_lazy_tlbstate into tlb_32.c, and define noop versions of
play_dead() in process_{32,64}.c when !CONFIG_SMP.

Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 22 insertions, 7 deletions

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 18f5551b32dd..76d10d5c2fa7 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -714,10 +714,3 @@ void __cpuinit cpu_init(void)
         mxcsr_feature_mask_init();
 }
 
-void reset_lazy_tlbstate(void)
-{
-        int cpu = raw_smp_processor_id();
-
-        per_cpu(cpu_tlbstate, cpu).state = 0;
-        per_cpu(cpu_tlbstate, cpu).active_mm = &init_mm;
-}
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 633cf06578fa..b76b38ff962b 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -72,6 +72,13 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
         return ((unsigned long *)tsk->thread.sp)[3];
 }
 
+#ifndef CONFIG_SMP
+static inline void play_dead(void)
+{
+        BUG();
+}
+#endif
+
 /*
  * The idle thread. There's no useful work to be
  * done, so just try to conserve power and have a
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index aa28ed01cdf3..ec27afa43d7e 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -85,6 +85,13 @@ void exit_idle(void)
         __exit_idle();
 }
 
+#ifndef CONFIG_SMP
+static inline void play_dead(void)
+{
+        BUG();
+}
+#endif
+
 /*
  * The idle thread. There's no useful work to be
  * done, so just try to conserve power and have a
diff --git a/arch/x86/kernel/tlb_32.c b/arch/x86/kernel/tlb_32.c
index fec1ecedc9b7..e00534b33534 100644
--- a/arch/x86/kernel/tlb_32.c
+++ b/arch/x86/kernel/tlb_32.c
@@ -241,3 +241,11 @@ void flush_tlb_all(void)
         on_each_cpu(do_flush_tlb_all, NULL, 1);
 }
 
+void reset_lazy_tlbstate(void)
+{
+        int cpu = raw_smp_processor_id();
+
+        per_cpu(cpu_tlbstate, cpu).state = 0;
+        per_cpu(cpu_tlbstate, cpu).active_mm = &init_mm;
+}
+