[Patch Part2 v5 05/33] x86/irq: Kill x86_io_apic_ops.set_affinity and related interfaces

From: Jiang Liu
Date: Mon Apr 13 2015 - 22:29:44 EST

Now there is no user of x86_io_apic_ops.set_affinity anymore, so kill
it.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Yijing Wang <wangyijing@xxxxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1416901802-24211-15-git-send-email-jiang.liu@xxxxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Tested-by: Joerg Roedel <jroedel@xxxxxxx>
---
arch/x86/include/asm/io_apic.h | 4 ----
arch/x86/include/asm/x86_init.h | 3 ---
arch/x86/kernel/apic/io_apic.c | 25 +------------------------
arch/x86/kernel/x86_init.c | 1 -
drivers/iommu/irq_remapping.c | 15 ---------------
5 files changed, 1 insertion(+), 47 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index d2a34e4718d2..0ff68daa9949 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -222,9 +222,6 @@ extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
extern void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int val);
extern void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val);
extern void native_disable_io_apic(void);
-extern int native_ioapic_set_affinity(struct irq_data *,
- const struct cpumask *,
- bool);

static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
{
@@ -285,7 +282,6 @@ static inline void disable_ioapic_support(void) { }
#define native_io_apic_write NULL
#define native_io_apic_modify NULL
#define native_disable_io_apic NULL
-#define native_ioapic_set_affinity NULL
#define native_eoi_ioapic_pin NULL

static inline void setup_IO_APIC(void) { }
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 0c690574efae..f9f83cfabcaa 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -191,9 +191,6 @@ struct x86_io_apic_ops {
void (*write) (unsigned int apic, unsigned int reg, unsigned int value);
void (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
void (*disable)(void);
- int (*set_affinity)(struct irq_data *data,
- const struct cpumask *mask,
- bool force);
void (*eoi_ioapic_pin)(int apic, int pin, int vector);
};

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index cf5cd19b74e3..9ef964512b86 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1787,29 +1787,6 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq
}
}

-int native_ioapic_set_affinity(struct irq_data *data,
- const struct cpumask *mask,
- bool force)
-{
- unsigned int dest, irq = data->irq;
- unsigned long flags;
- int ret;
-
- if (!config_enabled(CONFIG_SMP))
- return -EPERM;
-
- raw_spin_lock_irqsave(&ioapic_lock, flags);
- ret = apic_set_affinity(data, mask, &dest);
- if (!ret) {
- /* Only the high 8 bits are valid. */
- dest = SET_APIC_LOGICAL_ID(dest);
- __target_IO_APIC_irq(irq, dest, irqd_cfg(data));
- ret = IRQ_SET_MASK_OK_NOCOPY;
- }
- raw_spin_unlock_irqrestore(&ioapic_lock, flags);
- return ret;
-}
-
atomic_t irq_mis_count;

#ifdef CONFIG_GENERIC_PENDING_IRQ
@@ -2686,7 +2663,7 @@ void __init setup_ioapic_dest(void)
else
mask = apic->target_cpus();

- x86_io_apic_ops.set_affinity(idata, mask, false);
+ irq_set_affinity(irq, mask);
}

}
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 066cdaa6503e..f7e8eab3a7c4 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -144,6 +144,5 @@ struct x86_io_apic_ops x86_io_apic_ops = {
.write = native_io_apic_write,
.modify = native_io_apic_modify,
.disable = native_disable_io_apic,
- .set_affinity = native_ioapic_set_affinity,
.eoi_ioapic_pin = native_eoi_ioapic_pin,
};
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 5bb1a04c91f5..7baa54a13921 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -25,10 +25,6 @@ int no_x2apic_optout;
static int disable_irq_remap;
static struct irq_remap_ops *remap_ops;

-static int set_remapped_irq_affinity(struct irq_data *data,
- const struct cpumask *mask,
- bool force);
-
static bool irq_remapped(struct irq_cfg *cfg)
{
return (cfg->remapped == 1);
@@ -61,7 +57,6 @@ static void eoi_ioapic_pin_remapped(int apic, int pin, int vector)
static void __init irq_remapping_modify_x86_ops(void)
{
x86_io_apic_ops.disable = irq_remapping_disable_io_apic;
- x86_io_apic_ops.set_affinity = set_remapped_irq_affinity;
x86_io_apic_ops.eoi_ioapic_pin = eoi_ioapic_pin_remapped;
}

@@ -157,15 +152,6 @@ int __init irq_remap_enable_fault_handling(void)
return remap_ops->enable_faulting();
}

-static int set_remapped_irq_affinity(struct irq_data *data,
- const struct cpumask *mask, bool force)
-{
- if (!config_enabled(CONFIG_SMP) || !remap_ops->set_affinity)
- return 0;
-
- return remap_ops->set_affinity(data, mask, force);
-}
-
void free_remapped_irq(int irq)
{
struct irq_cfg *cfg = irq_cfg(irq);
@@ -201,7 +187,6 @@ void irq_remap_modify_chip_defaults(struct irq_chip *chip)
chip->irq_print_chip = ir_print_prefix;
chip->irq_ack = ir_ack_apic_edge;
chip->irq_eoi = ir_ack_apic_level;
- chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
}

bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
--
1.7.10.4

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