x86/irq: Remove x86_io_apic_ops.set_affinity and related interfaces

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

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1428978610-28986-6-git-send-email-jiang.liu@linux.intel.com

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index d2a34e4..0ff68da 100644 (file)
--- 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 0c69057..f9f83cf 100644 (file)
--- 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 cf5cd19..9ef9645 100644 (file)
--- 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 066cdaa..f7e8eab 100644 (file)
--- 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 5bb1a04..7baa54a 100644 (file)
--- 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)