diff options
Diffstat (limited to 'arch/i386/kernel/acpi/cstate.c')
| -rw-r--r-- | arch/i386/kernel/acpi/cstate.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c index 20563e52c62..2d39f55d29a 100644 --- a/arch/i386/kernel/acpi/cstate.c +++ b/arch/i386/kernel/acpi/cstate.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/acpi.h> #include <linux/cpu.h> +#include <linux/sched.h> #include <acpi/processor.h> #include <asm/acpi.h> @@ -46,13 +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]; @@ -70,7 +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; @@ -135,7 +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, @@ -149,16 +150,14 @@ 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; } static void __exit ffh_cstate_exit(void) { - if (cpu_cstate_entry) { - free_percpu(cpu_cstate_entry); - cpu_cstate_entry = NULL; - } + free_percpu(cpu_cstate_entry); + cpu_cstate_entry = NULL; } arch_initcall(ffh_cstate_init); |