[Patch v2 15/18] x86, irq: Use helpers to access irq_cfg data structure associated with IRQ

[Jiang Liu]

Use helpers to access irq_cfg data structure associated with IRQ,
instead of accessing irq_data->chip_data directly. Later we could
rewrite those helpers to support hierarchy irqdomain.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
 arch/x86/kernel/apic/htirq.c   |    2 +-
 arch/x86/kernel/apic/io_apic.c |   10 +++++-----
 arch/x86/kernel/apic/msi.c     |    6 +++---
 arch/x86/kernel/apic/vector.c  |    6 +++---
 arch/x86/platform/uv/uv_irq.c  |    4 ++--
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kernel/apic/htirq.c b/arch/x86/kernel/apic/htirq.c
index 1cd879fe39d7..6f527b02ac4c 100644
--- a/arch/x86/kernel/apic/htirq.c
+++ b/arch/x86/kernel/apic/htirq.c
@@ -39,7 +39,7 @@ static void target_ht_irq(unsigned int irq, unsigned int dest, u8 vector)
 static int
 ht_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	unsigned int dest;
 	int ret;
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index b80dd6402647..2bfd38a12bfe 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -501,7 +501,7 @@ static void mask_ioapic(struct irq_cfg *cfg)
 
 static void mask_ioapic_irq(struct irq_data *data)
 {
-	mask_ioapic(data->chip_data);
+	mask_ioapic(irqd_cfg(data));
 }
 
 static void __unmask_ioapic(struct irq_cfg *cfg)
@@ -520,7 +520,7 @@ static void unmask_ioapic(struct irq_cfg *cfg)
 
 static void unmask_ioapic_irq(struct irq_data *data)
 {
-	unmask_ioapic(data->chip_data);
+	unmask_ioapic(irqd_cfg(data));
 }
 
 /*
@@ -1801,7 +1801,7 @@ static unsigned int startup_ioapic_irq(struct irq_data *data)
 		if (legacy_pic->irq_pending(irq))
 			was_pending = 1;
 	}
-	__unmask_ioapic(data->chip_data);
+	__unmask_ioapic(irqd_cfg(data));
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 
 	return was_pending;
@@ -1852,7 +1852,7 @@ int native_ioapic_set_affinity(struct irq_data *data,
 	if (!ret) {
 		/* Only the high 8 bits are valid. */
 		dest = SET_APIC_LOGICAL_ID(dest);
-		__target_IO_APIC_irq(irq, dest, data->chip_data);
+		__target_IO_APIC_irq(irq, dest, irqd_cfg(data));
 		ret = IRQ_SET_MASK_OK_NOCOPY;
 	}
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
@@ -1943,7 +1943,7 @@ static inline void ioapic_irqd_unmask(struct irq_data *data,
 
 static void ack_ioapic_level(struct irq_data *data)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	int i, irq = data->irq;
 	unsigned long v;
 	bool masked;
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 8ad0046849f3..fb45663395ca 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -78,7 +78,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq,
 static int
 msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	struct msi_msg msg;
 	unsigned int dest;
 	int ret;
@@ -179,7 +179,7 @@ static int
 dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
 		      bool force)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	unsigned int dest, irq = data->irq;
 	struct msi_msg msg;
 	int ret;
@@ -233,7 +233,7 @@ int arch_setup_dmar_msi(unsigned int irq)
 static int hpet_msi_set_affinity(struct irq_data *data,
 				 const struct cpumask *mask, bool force)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	struct msi_msg msg;
 	unsigned int dest;
 	int ret;
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 2df1bff738b1..7562cb15b3bd 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -321,7 +321,7 @@ void setup_vector_irq(int cpu)
 
 int apic_retrigger_irq(struct irq_data *data)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	unsigned long flags;
 	int cpu;
 
@@ -335,7 +335,7 @@ int apic_retrigger_irq(struct irq_data *data)
 
 void apic_ack_edge(struct irq_data *data)
 {
-	irq_complete_move(data->chip_data);
+	irq_complete_move(irqd_cfg(data));
 	irq_move_irq(data);
 	ack_APIC_irq();
 }
@@ -348,7 +348,7 @@ void apic_ack_edge(struct irq_data *data)
 int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
 		      unsigned int *dest_id)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	unsigned int irq = data->irq;
 	int err;
 
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index 3e8fab740c1d..0ce673645432 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -131,7 +131,7 @@ arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade,
 		       unsigned long mmr_offset, int limit)
 {
 	const struct cpumask *eligible_cpu = cpumask_of(cpu);
-	struct irq_cfg *cfg = irq_get_chip_data(irq);
+	struct irq_cfg *cfg = irq_cfg(irq);
 	unsigned long mmr_value;
 	struct uv_IO_APIC_route_entry *entry;
 	int mmr_pnode, err;
@@ -198,7 +198,7 @@ static int
 uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask,
 		    bool force)
 {
-	struct irq_cfg *cfg = data->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	unsigned int dest;
 	unsigned long mmr_value, mmr_offset;
 	struct uv_IO_APIC_route_entry *entry;
-- 
1.7.10.4

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