diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c
index 12e937c1ce4bbe11feccd1be11d75e728adc1f44..2d39f55d29a88ca36283d2f87206cd646649e521 100644
--- a/arch/i386/kernel/acpi/cstate.c
+++ b/arch/i386/kernel/acpi/cstate.c
@@ -47,13 +47,13 @@ EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
 
 /* The code below handles cstate entry with monitor-mwait pair on Intel*/
 
-struct cstate_entry_s {
+struct cstate_entry {
 	struct {
 		unsigned int eax;
 		unsigned int ecx;
 	} states[ACPI_PROCESSOR_MAX_POWER];
 };
-static struct cstate_entry_s *cpu_cstate_entry;	/* per CPU ptr */
+static struct cstate_entry *cpu_cstate_entry;	/* per CPU ptr */
 
 static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 
@@ -71,7 +71,7 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 int acpi_processor_ffh_cstate_probe(unsigned int cpu,
 		struct acpi_processor_cx *cx, struct acpi_power_register *reg)
 {
-	struct cstate_entry_s *percpu_entry;
+	struct cstate_entry *percpu_entry;
 	struct cpuinfo_x86 *c = cpu_data + cpu;
 
 	cpumask_t saved_mask;
@@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);
 void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx)
 {
 	unsigned int cpu = smp_processor_id();
-	struct cstate_entry_s *percpu_entry;
+	struct cstate_entry *percpu_entry;
 
 	percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu);
 	mwait_idle_with_hints(percpu_entry->states[cx->index].eax,
@@ -150,7 +150,7 @@ static int __init ffh_cstate_init(void)
 	if (c->x86_vendor != X86_VENDOR_INTEL)
 		return -1;
 
-	cpu_cstate_entry = alloc_percpu(struct cstate_entry_s);
+	cpu_cstate_entry = alloc_percpu(struct cstate_entry);
 	return 0;
 }