ia64: remove CONFIG_ACPI ifdefs

Now that hpsim support is gone, CONFIG_ACPI is forced on for ia64, and
we can remove a few ifdefs for it.

Acked-by: Tom Vaden <tom.vaden@hpe.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-20-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/include/asm/acpi.h

@@ -17,7 +17,7 @@
 #include <linux/numa.h>
 #include <asm/numa.h>
 
-#ifdef	CONFIG_ACPI
+
 extern int acpi_lapic;
 #define acpi_disabled 0	/* ACPI always enabled on IA64 */
 #define acpi_noirq 0	/* ACPI always enabled on IA64 */
@@ -28,7 +28,7 @@ static inline bool acpi_has_cpu_in_madt(void)
 {
 	return !!acpi_lapic;
 }
-#endif
+
 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
 static inline void disable_acpi(void) { }
 

arch/ia64/kernel/Makefile

@@ -12,9 +12,9 @@ extra-y	:= head.o vmlinux.lds
 obj-y := entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\
 	 irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o		\
 	 salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \
-	 unwind.o mca.o mca_asm.o topology.o dma-mapping.o iosapic.o
+	 unwind.o mca.o mca_asm.o topology.o dma-mapping.o iosapic.o acpi.o \
+	 acpi-ext.o
 
-obj-$(CONFIG_ACPI)		+= acpi.o acpi-ext.o
 obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
 
 obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o

arch/ia64/kernel/iosapic.c

@@ -643,10 +643,8 @@ get_target_cpu (unsigned int gsi, int irq)
 	if (!cpu_online(smp_processor_id()))
 		return cpu_physical_id(smp_processor_id());
 
-#ifdef CONFIG_ACPI
 	if (cpe_vector > 0 && irq_to_vector(irq) == IA64_CPEP_VECTOR)
 		return get_cpei_target_cpu();
-#endif
 
 #ifdef CONFIG_NUMA
 	{

arch/ia64/kernel/irq_ia64.c

@@ -633,9 +633,7 @@ ia64_native_register_ipi(void)
 void __init
 init_IRQ (void)
 {
-#ifdef CONFIG_ACPI
 	acpi_boot_init();
-#endif
 	ia64_register_ipi();
 	register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
 #ifdef CONFIG_SMP

arch/ia64/kernel/mca.c

@@ -149,9 +149,7 @@ static ia64_mc_info_t		ia64_mc_info;
 #define CPE_HISTORY_LENGTH    5
 #define CMC_HISTORY_LENGTH    5
 
-#ifdef CONFIG_ACPI
 static struct timer_list cpe_poll_timer;
-#endif
 static struct timer_list cmc_poll_timer;
 /*
  * This variable tells whether we are currently in polling mode.
@@ -532,8 +530,6 @@ int mca_recover_range(unsigned long addr)
 }
 EXPORT_SYMBOL_GPL(mca_recover_range);
 
-#ifdef CONFIG_ACPI
-
 int cpe_vector = -1;
 int ia64_cpe_irq = -1;
 
@@ -595,9 +591,6 @@ out:
 	return IRQ_HANDLED;
 }
 
-#endif /* CONFIG_ACPI */
-
-#ifdef CONFIG_ACPI
 /*
  * ia64_mca_register_cpev
  *
@@ -625,7 +618,6 @@ ia64_mca_register_cpev (int cpev)
 	IA64_MCA_DEBUG("%s: corrected platform error "
 		       "vector %#x registered\n", __func__, cpev);
 }
-#endif /* CONFIG_ACPI */
 
 /*
  * ia64_mca_cmc_vector_setup
@@ -1540,8 +1532,6 @@ ia64_mca_cmc_poll (struct timer_list *unused)
  * Outputs
  * 	handled
  */
-#ifdef CONFIG_ACPI
-
 static irqreturn_t
 ia64_mca_cpe_int_caller(int cpe_irq, void *arg)
 {
@@ -1604,8 +1594,6 @@ ia64_mca_cpe_poll (struct timer_list *unused)
 							IA64_IPI_DM_INT, 0);
 }
 
-#endif /* CONFIG_ACPI */
-
 static int
 default_monarch_init_process(struct notifier_block *self, unsigned long val, void *data)
 {
@@ -1799,7 +1787,6 @@ static struct irqaction mca_wkup_irqaction = {
 	.name =		"mca_wkup"
 };
 
-#ifdef CONFIG_ACPI
 static struct irqaction mca_cpe_irqaction = {
 	.handler =	ia64_mca_cpe_int_handler,
 	.name =		"cpe_hndlr"
@@ -1809,7 +1796,6 @@ static struct irqaction mca_cpep_irqaction = {
 	.handler =	ia64_mca_cpe_int_caller,
 	.name =		"cpe_poll"
 };
-#endif /* CONFIG_ACPI */
 
 /* Minimal format of the MCA/INIT stacks.  The pseudo processes that run on
  * these stacks can never sleep, they cannot return from the kernel to user
@@ -2081,10 +2067,8 @@ void __init ia64_mca_irq_init(void)
 	/* Setup the MCA wakeup interrupt vector */
 	register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction);
 
-#ifdef CONFIG_ACPI
 	/* Setup the CPEI/P handler */
 	register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
-#endif
 }
 
 /*
@@ -2112,7 +2096,6 @@ ia64_mca_late_init(void)
 			  ia64_mca_cpu_online, NULL);
 	IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __func__);
 
-#ifdef CONFIG_ACPI
 	/* Setup the CPEI/P vector and handler */
 	cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI);
 	timer_setup(&cpe_poll_timer, ia64_mca_cpe_poll, 0);
@@ -2143,7 +2126,6 @@ ia64_mca_late_init(void)
 			IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __func__);
 		}
 	}
-#endif
 
 	return 0;
 }

arch/ia64/kernel/setup.c

@@ -537,21 +537,19 @@ setup_arch (char **cmdline_p)
 	if (early_console_setup(*cmdline_p) == 0)
 		mark_bsp_online();
 
-#ifdef CONFIG_ACPI
 	/* Initialize the ACPI boot-time table parser */
 	acpi_table_init();
 	early_acpi_boot_init();
-# ifdef CONFIG_ACPI_NUMA
+#ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
 	acpi_numa_fixup();
-#  ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
 	prefill_possible_map();
-#  endif
+#endif
 	per_cpu_scan_finalize((cpumask_weight(&early_cpu_possible_map) == 0 ?
 		32 : cpumask_weight(&early_cpu_possible_map)),
 		additional_cpus > 0 ? additional_cpus : 0);
-# endif
+#endif /* CONFIG_ACPI_NUMA */
-#endif /* CONFIG_APCI_BOOT */
 
 #ifdef CONFIG_SMP
 	smp_build_cpu_map();

arch/ia64/kernel/topology.c

@@ -42,7 +42,6 @@ EXPORT_SYMBOL_GPL(arch_fix_phys_package_id);
 #ifdef CONFIG_HOTPLUG_CPU
 int __ref arch_register_cpu(int num)
 {
-#ifdef CONFIG_ACPI
 	/*
 	 * If CPEI can be re-targeted or if this is not
 	 * CPEI target, then it is hotpluggable
@@ -50,7 +49,6 @@ int __ref arch_register_cpu(int num)
 	if (can_cpei_retarget() || !is_cpu_cpei_target(num))
 		sysfs_cpus[num].cpu.hotpluggable = 1;
 	map_cpu_to_node(num, node_cpuid[num].nid);
-#endif
 	return register_cpu(&sysfs_cpus[num].cpu, num);
 }
 EXPORT_SYMBOL(arch_register_cpu);
@@ -58,9 +56,7 @@ EXPORT_SYMBOL(arch_register_cpu);
 void __ref arch_unregister_cpu(int num)
 {
 	unregister_cpu(&sysfs_cpus[num].cpu);
-#ifdef CONFIG_ACPI
 	unmap_cpu_from_node(num, cpu_to_node(num));
-#endif
 }
 EXPORT_SYMBOL(arch_unregister_cpu);
 #else