x86/irq: Remove unused struct mp_pin_info

Now nobody makes use of struct mp_pin_info, 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: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.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: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1428978610-28986-3-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 523b326..3506e8a 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -86,13 +86,6 @@ struct mp_chip_data {
        bool isa_irq;
 };
 
-struct mp_pin_info {
-       int trigger;
-       int polarity;
-       int set;
-       u32 count;
-};
-
 static struct ioapic {
        /*
         * # of IRQ routing registers
@@ -108,7 +101,6 @@ static struct ioapic {
        struct mp_ioapic_gsi  gsi_config;
        struct ioapic_domain_cfg irqdomain_cfg;
        struct irq_domain *irqdomain;
-       struct mp_pin_info *pin_info;
        struct resource *iomem_res;
 } ioapics[MAX_IO_APICS];
 
@@ -159,11 +151,6 @@ static inline int mp_init_irq_at_boot(int ioapic, int irq)
        return ioapic == 0 || mp_is_legacy_irq(irq);
 }
 
-static inline struct mp_pin_info *mp_pin_info(int ioapic_idx, int pin)
-{
-       return ioapics[ioapic_idx].pin_info + pin;
-}
-
 static inline struct irq_domain *mp_ioapic_irqdomain(int ioapic)
 {
        return ioapics[ioapic].irqdomain;
@@ -2432,7 +2419,6 @@ out:
 
 static int mp_irqdomain_create(int ioapic)
 {
-       size_t size;
        struct irq_alloc_info info;
        struct irq_domain *parent;
        int hwirqs = mp_ioapic_pin_count(ioapic);
@@ -2440,11 +2426,6 @@ static int mp_irqdomain_create(int ioapic)
        struct ioapic_domain_cfg *cfg = &ip->irqdomain_cfg;
        struct mp_ioapic_gsi *gsi_cfg = mp_ioapic_gsi_routing(ioapic);
 
-       size = sizeof(struct mp_pin_info) * mp_ioapic_pin_count(ioapic);
-       ip->pin_info = kzalloc(size, GFP_KERNEL);
-       if (!ip->pin_info)
-               return -ENOMEM;
-
        if (cfg->type == IOAPIC_DOMAIN_INVALID)
                return 0;
 
@@ -2457,13 +2438,10 @@ static int mp_irqdomain_create(int ioapic)
 
        ip->irqdomain = irq_domain_add_linear(cfg->dev, hwirqs, cfg->ops,
                                              (void *)(long)ioapic);
-       if (ip->irqdomain) {
-               ip->irqdomain->parent = parent;
-       } else {
-               kfree(ip->pin_info);
-               ip->pin_info = NULL;
+       if (!ip->irqdomain)
                return -ENOMEM;
-       }
+
+       ip->irqdomain->parent = parent;
 
        if (cfg->type == IOAPIC_DOMAIN_LEGACY ||
            cfg->type == IOAPIC_DOMAIN_STRICT)
@@ -2479,8 +2457,6 @@ static void ioapic_destroy_irqdomain(int idx)
                irq_domain_remove(ioapics[idx].irqdomain);
                ioapics[idx].irqdomain = NULL;
        }
-       kfree(ioapics[idx].pin_info);
-       ioapics[idx].pin_info = NULL;
 }
 
 void __init setup_IO_APIC(void)