Introduce helper function irq_data_get_node() and friends to hide
struct irq_data implementation details.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
include/linux/irq.h | 5 +++++
kernel/irq/internals.h | 5 +++++
kernel/irq/irqdesc.c | 8 +-------
kernel/irq/irqdomain.c | 3 ++-
kernel/irq/manage.c | 2 +-
kernel/irq/proc.c | 2 +-
6 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3c7fbe44edae..b3b82a5344c8 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -640,6 +640,11 @@ static inline u32 irq_get_trigger_type(unsigned int irq)
return d ? irqd_get_trigger_type(d) : 0;
}
+static inline int irq_data_get_node(struct irq_data *d)
+{
+ return d->node;
+}
+
unsigned int arch_dynirq_lower_bound(unsigned int from);
int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index a1ed80d11800..4834ee828c41 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -197,6 +197,11 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq, struct irq_desc *d
__this_cpu_inc(kstat.irqs_sum);
}
+static inline int irq_desc_get_node(struct irq_desc *desc)
+{
+ return irq_data_get_node(&desc->irq_data);
+}
+
#ifdef CONFIG_PM_SLEEP
bool irq_pm_check_wakeup(struct irq_desc *desc);
void irq_pm_install_action(struct irq_desc *desc, struct irqaction *action);
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index eac1aac906ea..b18d3f1d73d9 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -59,16 +59,10 @@ static void desc_smp_init(struct irq_desc *desc, int node)
#endif
}
-static inline int desc_node(struct irq_desc *desc)
-{
- return desc->irq_data.node;
-}
-
#else
static inline int
alloc_masks(struct irq_desc *desc, gfp_t gfp, int node) { return 0; }
static inline void desc_smp_init(struct irq_desc *desc, int node) { }
-static inline int desc_node(struct irq_desc *desc) { return 0; }
#endif
static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node,
@@ -300,7 +294,7 @@ static void free_desc(unsigned int irq)
unsigned long flags;
raw_spin_lock_irqsave(&desc->lock, flags);
- desc_set_defaults(irq, desc, desc_node(desc), NULL);
+ desc_set_defaults(irq, desc, irq_desc_get_node(desc), NULL);
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 3552b8750efd..1b06dfed4574 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -830,7 +830,8 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain,
{
struct irq_data *irq_data;
- irq_data = kzalloc_node(sizeof(*irq_data), GFP_KERNEL, child->node);
+ irq_data = kzalloc_node(sizeof(*irq_data), GFP_KERNEL,
+ irq_data_get_node(child));
if (irq_data) {
child->parent_data = irq_data;
irq_data->irq = child->irq;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index b1c7e8f46bfb..f9744853b656 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -363,7 +363,7 @@ static int
setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask)
{
struct cpumask *set = irq_default_affinity;
- int node = desc->irq_data.node;
+ int node = irq_desc_get_node(desc);
/* Excludes PER_CPU and NO_BALANCE interrupts */
if (!irq_can_set_affinity(irq))
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index df2f4642d1e7..0e97c142ce40 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -241,7 +241,7 @@ static int irq_node_proc_show(struct seq_file *m, void *v)
{
struct irq_desc *desc = irq_to_desc((long) m->private);
- seq_printf(m, "%d\n", desc->irq_data.node);
+ seq_printf(m, "%d\n", irq_desc_get_node(desc));
return 0;
}
--
1.7.10.4
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