1 files changed, 9 insertions, 38 deletions

diff --git a/kernel/up.c b/kernel/up.c
index ee81ac9af4ca..df50828cc2f0 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Uniprocessor-only support functions.  The counterpart to kernel/smp.c
  */
@@ -13,7 +14,8 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 {
 	unsigned long flags;
 
-	WARN_ON(cpu != 0);
+	if (cpu != 0)
+		return -ENXIO;
 
 	local_irq_save(flags);
 	func(info);
@@ -23,7 +25,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 }
 EXPORT_SYMBOL(smp_call_function_single);
 
-int smp_call_function_single_async(int cpu, struct call_single_data *csd)
+int smp_call_function_single_async(int cpu, call_single_data_t *csd)
 {
 	unsigned long flags;
 
@@ -34,55 +36,24 @@ int smp_call_function_single_async(int cpu, struct call_single_data *csd)
 }
 EXPORT_SYMBOL(smp_call_function_single_async);
 
-int on_each_cpu(smp_call_func_t func, void *info, int wait)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	func(info);
-	local_irq_restore(flags);
-	return 0;
-}
-EXPORT_SYMBOL(on_each_cpu);
-
-/*
- * Note we still need to test the mask even for UP
- * because we actually can get an empty mask from
- * code that on SMP might call us without the local
- * CPU in the mask.
- */
-void on_each_cpu_mask(const struct cpumask *mask,
-		      smp_call_func_t func, void *info, bool wait)
-{
-	unsigned long flags;
-
-	if (cpumask_test_cpu(0, mask)) {
-		local_irq_save(flags);
-		func(info);
-		local_irq_restore(flags);
-	}
-}
-EXPORT_SYMBOL(on_each_cpu_mask);
-
 /*
  * Preemption is disabled here to make sure the cond_func is called under the
- * same condtions in UP and SMP.
+ * same conditions in UP and SMP.
  */
-void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
-		      smp_call_func_t func, void *info, bool wait,
-		      gfp_t gfp_flags)
+void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
+			   void *info, bool wait, const struct cpumask *mask)
 {
 	unsigned long flags;
 
 	preempt_disable();
-	if (cond_func(0, info)) {
+	if ((!cond_func || cond_func(0, info)) && cpumask_test_cpu(0, mask)) {
 		local_irq_save(flags);
 		func(info);
 		local_irq_restore(flags);
 	}
 	preempt_enable();
 }
-EXPORT_SYMBOL(on_each_cpu_cond);
+EXPORT_SYMBOL(on_each_cpu_cond_mask);
 
 int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
 {