arm64/mpam: remove __init macro to support driver probe

ascend inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4L735
CVE: NA

---------------------------------------------------

To support device tree boot for arm64 mpam, the __init macro might be
used by the dts driver. This remove the necessary __init macro for the
related functions.
Signed-off-by: NXingang Wang <wangxingang5@huawei.com>
Reviewed-by: NWang ShaoBo <bobo.shaobowang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/include/asm/resctrl.h

@@ -421,7 +421,7 @@ int resctrl_update_groups_config(struct rdtgroup *rdtgrp);
 
 #define RESCTRL_MAX_CLOSID 32
 
-int __init resctrl_group_init(void);
+int resctrl_group_init(void);
 
 void post_resctrl_mount(void);
 

arch/arm64/kernel/mpam/mpam_device.c

@@ -534,7 +534,7 @@ static void mpam_disable_irqs(void)
  * Scheduled by mpam_discovery_complete() once all devices have been created.
  * Also scheduled when new devices are probed when new CPUs come online.
  */
-static void __init mpam_enable(struct work_struct *work)
+static void mpam_enable(struct work_struct *work)
 {
 	int err;
 	unsigned long flags;
@@ -761,7 +761,7 @@ static struct mpam_class * __init mpam_class_get(u8 level_idx,
  * class/component structures may be allocated.
  * Returns the new device, or an ERR_PTR().
  */
-struct mpam_device * __init
+struct mpam_device *
 __mpam_device_create(u8 level_idx, enum mpam_class_types type,
 			int component_id, const struct cpumask *fw_affinity,
 			phys_addr_t hwpage_address)
@@ -810,7 +810,7 @@ __mpam_device_create(u8 level_idx, enum mpam_class_types type,
 	return dev;
 }
 
-void __init mpam_device_set_error_irq(struct mpam_device *dev, u32 irq,
+void mpam_device_set_error_irq(struct mpam_device *dev, u32 irq,
 					u32 flags)
 {
 	unsigned long irq_save_flags;
@@ -821,7 +821,7 @@ void __init mpam_device_set_error_irq(struct mpam_device *dev, u32 irq,
 	spin_unlock_irqrestore(&dev->lock, irq_save_flags);
 }
 
-void __init mpam_device_set_overflow_irq(struct mpam_device *dev, u32 irq,
+void mpam_device_set_overflow_irq(struct mpam_device *dev, u32 irq,
 					u32 flags)
 {
 	unsigned long irq_save_flags;
@@ -864,7 +864,7 @@ static inline u16 mpam_cpu_max_pmg(void)
 /*
  * prepare for initializing devices.
  */
-int __init mpam_discovery_start(void)
+int mpam_discovery_start(void)
 {
 	if (!mpam_cpus_have_feature())
 		return -EOPNOTSUPP;
@@ -1094,7 +1094,7 @@ static int mpam_cpu_offline(unsigned int cpu)
 	return 0;
 }
 
-int __init mpam_discovery_complete(void)
+int mpam_discovery_complete(void)
 {
 	int ret = 0;
 
@@ -1111,7 +1111,7 @@ int __init mpam_discovery_complete(void)
 	return ret;
 }
 
-void __init mpam_discovery_failed(void)
+void mpam_discovery_failed(void)
 {
 	struct mpam_class *class, *tmp;
 

arch/arm64/kernel/mpam/mpam_internal.h

@@ -329,7 +329,7 @@ int mpam_resctrl_setup(void);
 struct raw_resctrl_resource *
 mpam_get_raw_resctrl_resource(u32 level);
 
-int __init mpam_resctrl_init(void);
+int mpam_resctrl_init(void);
 
 int mpam_resctrl_set_default_cpu(unsigned int cpu);
 void mpam_resctrl_clear_default_cpu(unsigned int cpu);

arch/arm64/kernel/mpam/mpam_resctrl.c

@@ -2167,7 +2167,7 @@ static int __init mpam_setup(char *str)
 }
 __setup("mpam", mpam_setup);
 
-int __init mpam_resctrl_init(void)
+int mpam_resctrl_init(void)
 {
 	mpam_init_padding();
 

fs/resctrlfs.c

@@ -1156,7 +1156,7 @@ static int __init resctrl_group_setup_root(void)
  *
  * Return: 0 on success or -errno
  */
-int __init resctrl_group_init(void)
+int resctrl_group_init(void)
 {
 	int ret = 0;
 

include/linux/arm_mpam.h

@@ -16,7 +16,7 @@ enum mpam_class_types {
 	MPAM_CLASS_UNKNOWN, /* Everything else, e.g. TLBs etc */
 };
 
-struct mpam_device * __init
+struct mpam_device *
 __mpam_device_create(u8 level_idx, enum mpam_class_types type,
 			int component_id, const struct cpumask *fw_affinity,
 			phys_addr_t hwpage_address);
@@ -54,9 +54,9 @@ mpam_device_create_memory(int nid, phys_addr_t hwpage_address)
 	return __mpam_device_create(~0, MPAM_CLASS_MEMORY, nid,
 			&dev_affinity, hwpage_address);
 }
-int __init mpam_discovery_start(void);
-int __init mpam_discovery_complete(void);
-void __init mpam_discovery_failed(void);
+int mpam_discovery_start(void);
+int mpam_discovery_complete(void);
+void mpam_discovery_failed(void);
 
 enum mpam_enable_type {
 	MPAM_ENABLE_DENIED = 0,
@@ -71,12 +71,12 @@ extern enum mpam_enable_type mpam_enabled;
 #define mpam_irq_flags_to_acpi(x) ((x & MPAM_IRQ_MODE_LEVEL) ?  \
 			ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE)
 
-void __init mpam_device_set_error_irq(struct mpam_device *dev, u32 irq,
+void mpam_device_set_error_irq(struct mpam_device *dev, u32 irq,
 			u32 flags);
-void __init mpam_device_set_overflow_irq(struct mpam_device *dev, u32 irq,
+void mpam_device_set_overflow_irq(struct mpam_device *dev, u32 irq,
 			u32 flags);
 
-static inline int __init mpam_register_device_irq(struct mpam_device *dev,
+static inline int mpam_register_device_irq(struct mpam_device *dev,
 			u32 overflow_interrupt, u32 overflow_flags,
 			u32 error_interrupt, u32 error_flags)
 {